Brandweer op Internet - Brandweer.nl

Overview

Snoop Summary for brandweer.nl

This is a free and comprehensive report about brandweer.nl. The domain brandweer.nl is currently hosted on a server located in Woerden, Provincie Utrecht in Netherlands with the IP address 84.22.100.100, where EUR is the local currency and the local language is Dutch. Brandweer.nl has the potential to be earning an estimated $2 USD per day from advertising revenue. If brandweer.nl was to be sold it would possibly be worth $1,560 USD (based on the daily revenue potential of the website over a 24 month period). Brandweer.nl receives an estimated 745 unique visitors every day - a decent amount of traffic! This report was last updated 11th December, 2020.

About brandweer.nl

Site Preview:
Title:	Brandweer op Internet
Description:	Alles over de brandweer, brandveiligheid in en om je huis, op vakantie en op je werk en wat de brandweer doet. De brandweer doet meer dan blussen.
Keywords and Tags:	brandweer; brandveiligheid; brandweer.nl, government, military, popular, public information
Related Terms:	ab werk, brandweer, vakantie, vakantie buitenland, wat, wat is colocatie, werk, werk zoeken
Fav Icon:
Age:	Over 25 years old
Domain Created:	13th July, 1998
Domain Updated:	29th October, 2020
Domain Expires:

Review

Snoop Score

2/5

Valuation

$1,560 USD

Note: All valuation figures are estimates.

Popularity

Low

Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank:	941,729
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority:	0
Moz Page Authority:	0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors:	745
Monthly Visitors:	22,675
Yearly Visitors:	271,925

Note: All visitors figures are estimates.

Visitors By Country

Revenue

Daily Revenue:	$2 USD
Monthly Revenue:	$65 USD
Yearly Revenue:	$775 USD

Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top Ranking Keywords (US)

Domain Analysis

	Value	Length
Domain:	brandweer.nl	12
Domain Name:	brandweer	9
Extension (TLD):	nl	2

Page Speed Analysis

Average Load Time:	1.48 seconds
Load Time Comparison:	Faster than 46% of sites

Avg. (All Categories)

Performance

Accessibility

Best Practices

SEO

Progressive Web App

0–49 (Fail) 50–89 (Average) 90–100 (Pass)

URL: https://www.brandweer.nl/

Updated: 11th December, 2020

1.77 seconds

First Contentful Paint (FCP)

42%

51%

7%

0.01 seconds

First Input Delay (FID)

97%

2%

1%

Simulate loading on desktop

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for brandweer.nl. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.9 s
The time taken for the first image or text on the page to be rendered.

Time to Interactive — 1.5 s
The time taken for the page to become fully interactive.

Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Cumulative Layout Shift — 0.046
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 2.2 s
The time taken for the page's main thread to be quiet enough to handle input.

Max Potential First Input Delay — 50 ms
Users could experience a delay when interacting with the page.

Estimated Input Latency — 10 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive brandweer.nl as laggy when the latency is higher than 0.05 seconds.

Network Requests
Below is a list of network requests that were made during page load.

URL	Start Time (Ms)	End Time (Ms)	Transfer Size (Bytes)	Resource Size (Bytes)	Status Code	MIME Type	Resource Type
http://brandweer.nl/	0	410.88300012052	261	0	301	text/html
http://www.brandweer.nl/	411.50399995968	986.08299996704	436	0	302	text/html
https://www.brandweer.nl/	986.65500013158	1626.2640000787	18033	81890	200	text/html	Document
https://www.brandweer.nl/bundles/app.css?v=KrJuxDqADLd1uy82_bSvsYVCRh0BxdE5EjGPD9h4d4Q1	1643.2060000952	1850.5460000597	52817	250636	200	text/css	Stylesheet
https://www.brandweer.nl/bundles/head.js?v=	1643.4150000568	2023.6420000438	428	0	200	text/javascript	Script
https://f1-eu.readspeaker.com/script/10139/webReader/webReader.js?pids=wr	1643.6350001022	1717.8230001591	18333	55878	200	application/javascript	Script
https://consent.cookiebot.com/uc.js	2035.6740001589	2058.0130000599	23941	72833	200	application/javascript	Script
https://www.brandweer.nl/bundles/jqvalidation.js?v=i_KAlBaww09A1sDLDXz1IqrCNVjoeOiyZEotAWiieEk1	1643.9529999625	2213.1700001191	53886	122430	200	text/javascript	Script
https://app.searchine.net/scripts/dist/searchine.loader.min.js	2035.8520001173	2536.2960000057	5920	14130	200	application/javascript	Script
https://www.brandweer.nl/static/public/images/brandweer-logo.svg	2036.0260000452	2511.4049999975	9751	24973	200	image/svg+xml	Image
https://www.brandweer.nl/media/7631/screendump-2-co-animatie.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131617972318430000	2036.1660001799	2604.319000151	35519	34936	200	image/jpeg	Image
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	2036.3180001732	2884.7440001555	286525	285941	200	image/png	Image
https://www.brandweer.nl/media/15460/video-samen-corona-2.jpg?center=0.59467455621301779,0.31166666666666665&mode=crop&width=400&height=400&rnd=132297824379370000	2036.5079999901	2512.2350000311	34338	33755	200	image/jpeg	Image
https://www.brandweer.nl/media/1591/wij-zijn-de-brandweer.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131289662539770000	2036.7809999734	2849.2550000083	23812	23228	200	image/jpeg	Image
https://www.brandweer.nl/media/10451/brandweerman-boot.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131855451237330000	2036.9710000232	2606.8969999906	31618	31034	200	image/jpeg	Image
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	2037.4100001063	2058.704999974	55098	174377	200	application/javascript	Script
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	2037.561000092	2233.6960001849	161321	160736	200	image/jpeg	Image
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	2037.6770000439	2616.7070001829	92773	92189	200	image/jpeg	Image
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https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	2038.0790000781	2698.34800018	125347	124763	200	image/jpeg	Image
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https://www.brandweer.nl/static/public/images/brandweer-logo-footer.svg	2038.5150001384	2138.0990000907	6442	15223	200	image/svg+xml	Image
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https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	2024.9690001365	2691.5100000333	57899	150815	200	text/javascript	Script
https://www.brandweer.nl/bundles/app.js?v=XuZkPWE1_m1JpvqmWYTz7ibAWuwEpXuEK9g2d5JsqOY1	2034.7380000167	2508.719000034	21597	53709	200	text/javascript	Script
https://www.brandweer.nl/bundles/leaftlet.js?v=BKe7smn9GII8Emms_jje5Ulab9u7QeKwFUyxC_CVRCo1	2035.2560000028	2510.4030000512	824	293	200	text/javascript	Script
https://fonts.googleapis.com/css?family=Open+Sans:400,700&display=fallback	2035.4649999645	2053.8540000562	1638	4562	200	text/css	Stylesheet
https://f1-eu.readspeaker.com/script/10139/webReader/r/r1217/ReadSpeaker.Styles-Button.css?v=3.3.2.1217	2029.7720001545	2176.5560000204	36357	62896	200	text/css	Stylesheet
https://dev.visualwebsiteoptimizer.com/j.php?a=70990&u=https%3A%2F%2Fwww.brandweer.nl%2F&r=0.4228368996701948	2038.8790001161	2057.5500000268	1636	2604	200	application/javascript	Script
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https://www.facebook.com/tr/?id=1510761449155807&ev=PageView&dl=https%3A%2F%2Fwww.brandweer.nl%2F&rl=&if=false&ts=1607693151781&sw=800&sh=600&v=2.9.30&r=stable&ec=0&o=30&fbp=fb.1.1607693151777.1076821705&it=1607693151696&coo=false&rqm=GET	2260.7070000377	2277.4940000381	463	44	200	image/gif	Image
	2297.5180000067	2297.583000036	0	37	200	image/gif	Image
https://www.brandweer.nl/static/public/images/curved-line-white.svg	2307.3080000468	2405.3360000253	1434	1006	200	image/svg+xml	Image
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=131577162202130000	2309.7360001411	2689.7760001011	210559	209974	200	image/jpeg	Image
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=132307487346600000	2322.8780000936	3078.2149999868	284443	283859	200	image/jpeg	Image
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont.woff2?v=274033	2332.7689999714	2803.6800001282	25466	25028	200	application/font-woff2	Font
https://www.brandweer.nl/static/public/fonts/icons/icon.woff?v=274033	2333.3090001252	2429.9129999708	10366	9928	200	application/x-font-woff	Font
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https://googleads.g.doubleclick.net/pagead/viewthroughconversion/867935345/?random=1607693151981&cv=9&fst=1607693151981&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&ig=1&data=event%3Dgtag.config&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&hn=www.googleadservices.com&us_privacy=1YNY&async=1&rfmt=3&fmt=4	2463.4879999794	2472.4920000881	2279	1599	200	text/javascript	Script
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/867935345/?random=1607693151986&cv=9&fst=1607693151986&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&ig=1&data=event%3Dpage_view&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&hn=www.googleadservices.com&us_privacy=1YNY&async=1&rfmt=3&fmt=4	2465.0980001315	2474.366000155	2317	1597	200	text/javascript	Script
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https://platform.twitter.com/widgets.js	4705.9780000709	4723.5340001062	29257	97262	200	application/javascript	Script
https://platform.twitter.com/widgets/widget_iframe.96fd96193cc66c3e11d4c5e4c7c7ec97.html?origin=https%3A%2F%2Fwww.brandweer.nl	4762.1369999833	4778.5140001215	6349	15208	200	text/html	Document
https://www.powr.io/powr.js	4763.0819999613	4786.8260000832	4999	12568	200	application/javascript	Script
https://connect.facebook.net/nl_NL/sdk.js	4837.1860000771	4889.7860001307	2886	3224	200	application/x-javascript	Script
https://syndication.twitter.com/settings	4844.5980001707	4870.8979999647	628	169	200	application/json	Fetch
https://connect.facebook.net/nl_NL/sdk.js?hash=f714316f2b63201632e49a573afe8156&ua=modern_es6	4893.2260000147	4912.2740000021	61255	199507	200	application/x-javascript	Script

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Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.

Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.

Tasks
Below is a list of the top-level main thread tasks that executed during page load.

Start Time (Ms)	End Time (Ms)
1659.814	8.712
1882.242	10.231
2055.33	11.759
2095.327	17.77
2115.512	16.952
2133.053	23.036
2161.314	23.924
2189.982	15.211
2207.4	19.81
2251.254	39.772
2291.462	36.962
2330.515	93.944
2432.037	41.657
2484.842	10.642
2496.466	28.837
2697.583	37.3
2737.9	68.935
2808.756	50.195
2859.237	61.023
2920.276	11.648
2938.006	46.074
2989.32	10.464
3000.461	5.453
3029.617	6.549
3036.179	58.257
3108.375	14.508
3126.662	5.646
3135.699	5.673
3143.934	8.592
3159.637	14.269
3177.857	9.025
3188.611	12.951
3204.943	7.271
3217.533	6.149
3223.724	12.087
3237.666	32.515
3330.108	15.849
3446.522	16.647
3473.244	5.074
3596.675	9.158
3622.161	7.626
3706.663	17.829
3829.86	22.918
3852.808	11.514

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Diagnostics
Below is a collection of useful page vitals.
View Data

Metrics
Below is a collection of metrics.
View Data

Opportunities

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Brandweer.nl should consider lazy-loading offscreen and hidden images.

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Brandweer.nl should consider minifying CSS files.

Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Brandweer.nl should consider minifying JS files.

Efficiently encode images — Potential savings of 18 KiB
Unoptimized images can consume more cellular data than what is necessary.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=131577162202130000	209974	18602

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Enable text compression — Potential savings of 55 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/static/public/regios.json	67465	56277

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Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.

Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.

Avoid serving legacy JavaScript to modern browsers — Potential savings of 23 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

URL	Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	11970
https://www.brandweer.nl/bundles/app.js?v=XuZkPWE1_m1JpvqmWYTz7ibAWuwEpXuEK9g2d5JsqOY1	11826
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	64
https://connect.facebook.net/en_US/fbevents.js	45

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Diagnostics

Avoids enormous network payloads — Total size was 2,520 KiB
Large network payloads can cost users money and are linked to long load times.

URL	Transfer Size (Bytes)
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	286525
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=132307487346600000	284443
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=131577162202130000	210559
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	161321
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	134777
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	125347
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	92773
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	73106
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	71607
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	71492

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Avoid chaining critical requests — 11 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Brandweer.nl should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.

JavaScript execution time — 0.3 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

URL	Total CPU Time (Ms)	Script Evaluation (Ms)	Script Parse (Ms)
https://www.brandweer.nl/	401.7	5.437	2.492
https://www.brandweer.nl/bundles/jqvalidation.js?v=i_KAlBaww09A1sDLDXz1IqrCNVjoeOiyZEotAWiieEk1	168.004	146.536	2.313
https://www.brandweer.nl/bundles/app.js?v=XuZkPWE1_m1JpvqmWYTz7ibAWuwEpXuEK9g2d5JsqOY1	122.128	30.62	1.084
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	100.795	38.438	4.756
Unattributable	99.228	1.867	0.14
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	63.335	53.348	4.71
https://script.hotjar.com/modules.42ad1fc945123a89c104.js	57.792	50.291	3.196

Show Details

Minimizes main-thread work — 1.3 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

Category	Time Spent (Ms)
Script Evaluation	506.227
Style & Layout	372.536
Other	183.987
Rendering	123.595
Script Parsing & Compilation	42.646
Parse HTML & CSS	39.582
Garbage Collection	0.975

Show Details

All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.

Keep request counts low and transfer sizes small — 73 requests • 2,520 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.

Resource Type	Requests	Transfer Size (Bytes)
Total	73	2580945
Image	26	1678606
Script	27	631050
Stylesheet	4	93515
Font	5	80669
Other	8	71328
Document	3	25777
Media	0	0
Third-party	40	570648

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Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.

Third-Party	Transfer Size (Bytes)	Main-Thread Blocking Time (Ms)
SHOW DETAILS	161151	4.957
SHOW DETAILS	94811	0
SHOW DETAILS	65295	0
SHOW DETAILS	54690	0
SHOW DETAILS	40623	0
SHOW DETAILS	36234	0
SHOW DETAILS	21281	0
SHOW DETAILS	20985	0
SHOW DETAILS	20077	0
SHOW DETAILS	4999	0
SHOW DETAILS	2238	0
SHOW DETAILS	2181	0

Show Details

Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.

Element
kerstbal.jpg

Show Details

Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.

Element	CLS Contribution
div	0.036
NIEUWS NIEUWS Versier je feestje veilig Moeilijk ontvlambare feestversiering:…	0.0084444444444444
Lees voor NL Nederlands English Deutsch https://brandweer.viadesk.com/do…	0.00055827325852768
Werken bij de brandweer?	0.00035185289403005
25 brandweerregio's	0.00022419545144048

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Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.

Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.

Avoid long main-thread tasks — 1 long task found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.

URL	Start Time (Ms)	Duration (Ms)
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	2446	50

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Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.

Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Largest Contentful Paint — 2.4 s
The timing of the largest text or image that is painted.

Other

First Meaningful Paint — 1.5 s
The time taken for the primary content of the page to be rendered.

Opportunities

Eliminate render-blocking resources — Potential savings of 220 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Brandweer.nl should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.

URL	Transfer Size (Bytes)	Potential Savings (Ms)
https://www.brandweer.nl/bundles/app.css?v=KrJuxDqADLd1uy82_bSvsYVCRh0BxdE5EjGPD9h4d4Q1	52817	230
https://www.brandweer.nl/bundles/head.js?v=	428	150
https://f1-eu.readspeaker.com/script/10139/webReader/webReader.js?pids=wr	18333	270

Show Details

Properly size images — Potential savings of 647 KiB
Images can slow down the page's load time. Brandweer.nl should consider serving more appropriate-sized images.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	285941	125814
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	160736	125575
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	134192	104838
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	124763	97471
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	92189	72023
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	72523	56659
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	71023	55487
https://www.brandweer.nl/media/15460/video-samen-corona-2.jpg?center=0.59467455621301779,0.31166666666666665&mode=crop&width=400&height=400&rnd=132297824379370000	33755	14852
https://www.brandweer.nl/media/1591/wij-zijn-de-brandweer.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131289662539770000	23228	10220

Show Details

Remove unused CSS — Potential savings of 77 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Brandweer.nl should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/bundles/app.css?v=KrJuxDqADLd1uy82_bSvsYVCRh0BxdE5EjGPD9h4d4Q1	52817	42757
https://f1-eu.readspeaker.com/script/10139/webReader/r/r1217/ReadSpeaker.Styles-Button.css?v=3.3.2.1217	36357	36278

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Remove unused JavaScript — Potential savings of 236 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	71492	54168
https://connect.facebook.net/nl_NL/sdk.js?hash=f714316f2b63201632e49a573afe8156&ua=modern_es6	61255	42170
https://script.hotjar.com/modules.42ad1fc945123a89c104.js	60264	39993
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	57899	37996
https://www.brandweer.nl/bundles/jqvalidation.js?v=i_KAlBaww09A1sDLDXz1IqrCNVjoeOiyZEotAWiieEk1	53886	25965
https://www.googletagmanager.com/gtag/js?id=AW-867935345	39713	20685
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	55098	20576

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Serve images in next-gen formats — Potential savings of 767 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	285941	273805
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=132307487346600000	283859	136843
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=131577162202130000	209974	90584
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	134192	53122
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	124763	41199
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	92189	36677
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	72523	34991
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	71023	34065
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	160736	29548
https://www.brandweer.nl/media/7631/screendump-2-co-animatie.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131617972318430000	34936	15126
https://www.brandweer.nl/media/15460/video-samen-corona-2.jpg?center=0.59467455621301779,0.31166666666666665&mode=crop&width=400&height=400&rnd=132297824379370000	33755	14763
https://www.brandweer.nl/media/10451/brandweerman-boot.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131855451237330000	31034	12484
https://www.brandweer.nl/media/1591/wij-zijn-de-brandweer.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131289662539770000	23228	11952

Show Details

Avoid multiple page redirects — Potential savings of 380 ms
Redirects can cause additional delays before the page can begin loading. Brandweer.nl should avoid multiple or unnecessary page redirects.

URL	Time Spent (Ms)
http://brandweer.nl/	190
http://www.brandweer.nl/	190
https://www.brandweer.nl/	0

Show Details

Preload key requests — Potential savings of 550 ms
Key requests can be preloaded by using '<link rel=preload>'. Brandweer.nl should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.

URL	Potential Savings (Ms)
https://www.brandweer.nl/static/public/fonts/icons/icon.woff?v=274033	550
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont-1.woff2?v=274033	470
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont.woff2?v=274033	430

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Metrics

Speed Index — 2.6 s
The time taken for the page contents to be visibly populated.

Opportunities

Reduce initial server response time — Root document took 640 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.

URL	Time Spent (Ms)
https://www.brandweer.nl/	640.607

Show Details

Diagnostics

Serve static assets with an efficient cache policy — 38 resources found
Brandweer.nl can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.

URL	Cache TTL (Ms)	Transfer Size (Bytes)
https://f1-eu.readspeaker.com/script/10139/webReader/webReader.js?pids=wr	0	18333
https://dev.visualwebsiteoptimizer.com/j.php?a=70990&u=https%3A%2F%2Fwww.brandweer.nl%2F&r=0.4228368996701948	0	1636
https://dev.visualwebsiteoptimizer.com/v.gif?cd=0&a=70990&d=brandweer.nl&u=D71AB6D815FE2FFBB9EC5168A2B4199FC&h=e7b2f29c16102d36edf79ffa32a55040&t=false&r=0.03060241368059491	0	545
https://static.hotjar.com/c/hotjar-2050866.js?sv=7	60000	3201
https://app.searchine.net/scripts/dist/searchine.search.min.js?v=78f4fa124e3025a2edeaae07fa94e773	180000	37111
https://app.searchine.net/scripts/dist/searchine.loader.min.js	180000	5920
https://app.searchine.net/Content/box.min.css?v=78f4fa124e3025a2edeaae07fa94e773	180000	2703
https://consent.cookiebot.com/uc.js	237000	23941
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	1200000	71492
https://connect.facebook.net/en_US/fbevents.js	1200000	24592
https://connect.facebook.net/nl_NL/sdk.js	1200000	2886
https://platform.twitter.com/widgets.js	1800000	29257
https://www.google-analytics.com/analytics.js	7200000	19452
https://f1-eu.readspeaker.com/script/10139/webReader/r/r1217/ReadSpeaker.Styles-Button.css?v=3.3.2.1217	44081000	36357
https://www.powr.io/powr.js	86400000	4999
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	604800000	286525
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=132307487346600000	604800000	284443
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=1920&height=1080&rnd=131577162202130000	604800000	210559
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	604800000	161321
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	604800000	134777
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	604800000	125347
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	604800000	92773
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	604800000	73106
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	604800000	71607
https://www.brandweer.nl/media/o3ahng5b/ad-stefan-red-schoolgenootje.jpg?center=0.54822390682630129,0.39573971633514188&mode=crop&width=480&height=260&rnd=132509617380630000&format=webp&quality=80	604800000	35730
https://www.brandweer.nl/media/7631/screendump-2-co-animatie.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131617972318430000	604800000	35519
https://www.brandweer.nl/media/15460/video-samen-corona-2.jpg?center=0.59467455621301779,0.31166666666666665&mode=crop&width=400&height=400&rnd=132297824379370000	604800000	34338
https://www.brandweer.nl/media/10451/brandweerman-boot.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131855451237330000	604800000	31618
https://www.brandweer.nl/media/7946/pelletburning_14827866672198.jpg?center=0.7725,0.53833333333333333&mode=crop&width=480&height=260&rnd=131732851513470000&format=webp&quality=80	604800000	29230
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont-1.woff2?v=274033	604800000	25490
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont.woff2?v=274033	604800000	25466
https://www.brandweer.nl/media/cledu24b/feestversiering_kerst.jpg?anchor=center&mode=crop&width=480&height=260&rnd=132514619821300000&format=webp&quality=80	604800000	24693
https://www.brandweer.nl/media/1591/wij-zijn-de-brandweer.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131289662539770000	604800000	23812
https://www.brandweer.nl/static/public/fonts/icons/icon.woff?v=274033	604800000	10366
https://www.brandweer.nl/static/public/images/brandweer-logo.svg	604800000	9751
https://www.brandweer.nl/static/public/images/brandweer-logo-footer.svg	604800000	6442
https://www.brandweer.nl/static/public/images/rangeslider-grab.svg	604800000	1872
https://www.brandweer.nl/static/public/images/curved-line-white.svg	604800000	1434

Show Details

Avoid an excessive DOM size — 1,722 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.

Statistic	Element	Value
Total DOM Elements		1,722
Maximum DOM Depth	SHOW DETAILS	19
Maximum Child Elements	SHOW DETAILS	61

Show Details

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of brandweer.nl. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.

The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.

`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.

No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.

`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.

ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.

`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.

`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.

`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.

ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.

`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.

`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.

ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.

No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.

`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.

Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.

`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.

`<object>` elements have `[alt]` text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.

Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.

Presentational `<table>` elements avoid using `<th>`, `<caption>` or the `[summary]` attribute.
It is advised to not include data elements in tables which are used for layout purposes, as it may create confusion for screen reader and other assistive technology users.

Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.

Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.

`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.

`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.

`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Brandweer.nl may provide assistance to deaf or hearing-impaired users with captions on videos.

`<video>` elements contain a `<track>` element with `[kind="description"]`
Brandweer.nl may provide relevant information that dialogue cannot, by using audio descriptions.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.

Failing Elements
Zoek hier...
Wat wil je zoeken?

Show Details

Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.

Failing Elements
(Brand)veiligheid Ons werk Voor de jeugd Open dagen Stel je vraag Werken bij de…

Show Details

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.

Failing Elements
Cookiebot
Naam
Aanbieder
Doel
Vervaltermijn
Type
__cfduid
Avrotros
Gebruikt door het inhoudsnetwerk, Cloudflare, om vertrouwd webverkeer te identi…
29 dagen
HTTP Cookie
__RequestVerificationToken
www.brandweer.nl
Helpt Cross-Site Request Forgery (CSRF) -aanvallen te voorkomen.
Session
HTTP Cookie
AI_buffer
Microsoft
Gebruikt in combinatie met de "AI_sentbuffer" om het aantal gegevensserver-upda…
Session
HTML Local Storage
AI_sentBuffer
Microsoft
Gebruikt in combinatie met de "AI_buffer" om het aantal gegevensserver-updates …
Session
HTML Local Storage
ARRAffinity [x2]
Microsoft hartstichting.nl
Microsoft
Gebruikt om verkeer naar de website te distribueren op verschillende servers om…
1 dag
HTTP Cookie
ARRAffinitySameSite [x2]
Microsoft hartstichting.nl
Microsoft
Gebruikt om verkeer naar de website te distribueren op verschillende servers om…
Session
HTTP Cookie
ASP.NET_SessionId
www.brandweer.nl
Houdt de sessiestatus van de bezoeker over paginavragen bij.
Session
HTTP Cookie
AWSALB
Blueconic
Registreert welk servercluster de bezoeker bedient. Dit wordt gebruikt in samen…
1 dag
HTTP Cookie
AWSALBCORS
Blueconic
Registreert welk servercluster de bezoeker bedient. Dit wordt gebruikt in samen…
6 dagen
HTTP Cookie
c [x2]
KPN
Bidswitch
Gebruikt om spam te detecteren en de beveiliging van de website te verbeteren. …
1 jaar
HTTP Cookie
CookieConsent
Cookiebot
Slaat de cookiestatus van de gebruiker op voor het huidige domein
1 jaar
HTTP Cookie
csrftoken
Prezi
Helpt Cross-Site Request Forgery (CSRF) -aanvallen te voorkomen.
1 dag
HTTP Cookie
gdpr
ID5
Bepaalt of de bezoeker de cookies heeft geaccepteerd. Dit zorgt ervoor dat het …
1 dag
HTTP Cookie
gig3pctest
Gigya
Deze cookie bepaalt of de browser cookies accepteert.
1 dag
HTTP Cookie
gmid
Gigya
Identificeert de ingelogde gebruiker. Een unieke sessie-ID is gekoppeld aan de …
1 jaar
HTTP Cookie
JSESSIONID
New Relic
Houdt gebruikersstatussen over paginabezoeken bij.
Session
HTTP Cookie
local_storage_support_test
Twitter
De cookie wordt gebruikt in samenhang met de lokale opslagfunctie in de browser…
Persistent
HTML Local Storage
OptanonConsent
RTL
Bepaalt of de bezoeker de cookies heeft geaccepteerd. Dit zorgt ervoor dat het …
1 jaar
HTTP Cookie
rc::a
Google
Deze cookie wordt gebruikt om onderscheid te maken tussen mensen en bots. Dit i…
Persistent
HTML Local Storage
rc::b
Google
Deze cookie wordt gebruikt om onderscheid te maken tussen mensen en bots.
Session
HTML Local Storage
rc::c
Google
Gebruikt in context met video-advertenties. De cookie beperkt het aantal keren …
Session
HTML Local Storage
Voorkeuren (7)
Voorkeurscookies zorgen ervoor dat een website informatie kan onthouden die van…
Naam
Aanbieder
Doel
Vervaltermijn
Type
bitmovinplayer_config
RTL
Gebruikt om de optimale videokwaliteit te bepalen op basis van het apparaat van…
Persistent
HTML Local Storage
hasGmid
Gigya
Deze cookie slaat de verificatiegegevens van de bezoeker op in een versleutelde…
180 dagen
HTTP Cookie
jwplayer.bandwidthEstimate
Talpa Network
Registreert de snelheid en prestaties van de website. Deze functie kan worden g…
Persistent
HTML Local Storage
jwplayerLocalId
Talpa Network
Gebruikt om de optimale videokwaliteit te bepalen op basis van het apparaat van…
Persistent
HTML Local Storage
lang [x3]
LinkedIn
Twitter
Onthoudt de door de gebruiker geselecteerde taalversie van een website
Session
HTTP Cookie
Statistieken (18)

Show Details

Navigation

Heading elements are not in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.

Failing Elements
Uitgelicht

Show Details

Names and labels

Form elements do not have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.

Failing Elements
input
input

Show Details

Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Failing Elements
a

Show Details

Tables and lists

List items (`<li>`) are not contained within `<ul>` or `<ol>` parent elements.
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.

Failing Elements
(Brand)veiligheid
Ons werk
Voor de jeugd
Open dagen
Stel je vraag
Werken bij de brandweer?

Show Details

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.

Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.

Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.

The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.

User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.

Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.

Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.

Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.

Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.

HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that brandweer.nl should incorporate. This includes practices such as protecting pages with HTTPS.

Passing (14)
Failing (3)

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.

Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.

Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.

Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.

Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Avoids Application Cache
Application cache is deprecated and is no longer recommended.

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.

Name	Version
jQuery	3.5.1
Modernizr	3.11.0
Handlebars	4.7.6
core-js	3.0.0: pure

Show Details

Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.

No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.

Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.

URL	Map URL
https://static.hotjar.com/c/hotjar-2050866.js?sv=7	https://static.hotjar.com/c/hotjar.js.map

Show Details

Audits

Does not use HTTPS — 2 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.

Insecure URL
http://brandweer.nl/
http://www.brandweer.nl/

Show Details

Links to cross-origin destinations are unsafe
Improve performance and prevent security vulnerabilities by adding rel="noopener" and rel="noreferrer" to external links.

Failing Anchors
https://brandweer.viadesk.com/do/login

Show Details

Audits

Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

URL
SHOW DETAILS

Show Details

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for brandweer.nl. This includes optimizations such as providing meta data.

Passing (14)
Manual Checks (1)

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of brandweer.nl on mobile screens.

Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.

Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.

Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.

Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.

Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.

Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.

Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.

Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.

Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.

robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Progressive Web App

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of brandweer.nl. This includes details about web app manifests.

PWA Optimized

Redirects HTTP traffic to HTTPS
It is advised to redirect all HTTP traffic to HTTPS, in order to enable secure web features for all users.

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of brandweer.nl on mobile screens.

Contains some content when JavaScript is not available
Apps should display alternative content for when JavaScript is disabled.

Fast and reliable

Page load is not fast enough on mobile networks — Interactive on simulated mobile network at 10.4 s
Ensure that the page loads fast enough over a cellular network, to ensure good mobile user experience.

Current page does not respond with a 200 when offline
In order for Progressive Web Apps to be made available offline, ensure that the app is using a service worker.

`start_url` does not respond with a 200 when offline
Consider using a service worker for Progressive Web Apps to ensure greater reliability for the user, in the case of poor network conditions.

Installable

Does not use HTTPS — 2 insecure requests found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.

Insecure URL
http://brandweer.nl/
http://www.brandweer.nl/

Show Details

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.

Web app manifest does not meet the installability requirements
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
View Data

PWA Optimized

Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data

Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data

Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.

Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.

Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.

Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.

Avg. (All Categories)

Performance

Accessibility

Best Practices

SEO

Progressive Web App

0–49 (Fail) 50–89 (Average) 90–100 (Pass)

URL: https://www.brandweer.nl/

Updated: 11th December, 2020

2.18 seconds

First Contentful Paint (FCP)

24%

65%

11%

0.02 seconds

First Input Delay (FID)

96%

4%

0%

Simulate loading on mobile

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for brandweer.nl. This includes details about optimizing page load times which can result in a better user experience.

Other

Estimated Input Latency — 60 ms
The time taken for the page to respond to user input (during the busiest 5 second window of page load). Users are likely to perceive brandweer.nl as laggy when the latency is higher than 0.05 seconds.

Network Requests
Below is a list of network requests that were made during page load.

URL	Start Time (Ms)	End Time (Ms)	Transfer Size (Bytes)	Resource Size (Bytes)	Status Code	MIME Type	Resource Type
http://brandweer.nl/	0	96.10100009013	249	0	301	text/html
http://www.brandweer.nl/	96.531000104733	306.67200009339	436	0	302	text/html
https://www.brandweer.nl/	307.27900005877	547.35100001562	18035	81890	200	text/html	Document
https://www.brandweer.nl/bundles/app.css?v=KrJuxDqADLd1uy82_bSvsYVCRh0BxdE5EjGPD9h4d4Q1	565.54100010544	684.42100007087	52817	250636	200	text/css	Stylesheet
https://www.brandweer.nl/bundles/head.js?v=	565.95000007655	663.18300005514	428	0	200	text/javascript	Script
https://f1-eu.readspeaker.com/script/10139/webReader/webReader.js?pids=wr	566.17700005881	604.04700005893	18333	55878	200	application/javascript	Script
https://consent.cookiebot.com/uc.js	711.84300002642	805.84899999667	23941	72833	200	application/javascript	Script
https://www.brandweer.nl/bundles/jqvalidation.js?v=i_KAlBaww09A1sDLDXz1IqrCNVjoeOiyZEotAWiieEk1	566.56000006478	669.85000006389	53886	122430	200	text/javascript	Script
https://app.searchine.net/scripts/dist/searchine.loader.min.js	712.06799999345	918.3090000879	5920	14130	200	application/javascript	Script
https://www.brandweer.nl/static/public/images/brandweer-logo.svg	712.34800003003	812.8920000745	9751	24973	200	image/svg+xml	Image
https://www.brandweer.nl/media/7631/screendump-2-co-animatie.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131617972318430000	712.49000006355	814.38500003424	35519	34936	200	image/jpeg	Image
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	712.75200007949	910.045000026	286525	285941	200	image/png	Image
https://www.brandweer.nl/media/15460/video-samen-corona-2.jpg?center=0.59467455621301779,0.31166666666666665&mode=crop&width=400&height=400&rnd=132297824379370000	712.94400002807	817.23600008991	34338	33755	200	image/jpeg	Image
https://www.brandweer.nl/media/1591/wij-zijn-de-brandweer.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131289662539770000	713.08700006921	813.75900004059	23812	23228	200	image/jpeg	Image
https://www.brandweer.nl/media/10451/brandweerman-boot.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131855451237330000	713.35600002203	1227.0470000803	31618	31034	200	image/jpeg	Image
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	713.48900010344	743.93600004259	55098	174377	200	application/javascript	Script
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	713.62600009888	908.8810000103	161321	160736	200	image/jpeg	Image
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	713.77500006929	815.3610000154	92773	92189	200	image/jpeg	Image
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	713.98000000045	818.7180000823	73106	72523	200	image/jpeg	Image
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	714.09600006882	910.96900007688	71607	71023	200	image/jpeg	Image
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	714.32800008915	817.78000004124	125347	124763	200	image/jpeg	Image
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	714.4580000313	819.45800001267	134777	134192	200	image/jpeg	Image
https://www.brandweer.nl/static/public/images/brandweer-logo-footer.svg	714.59300001152	818.39500006754	6442	15223	200	image/svg+xml	Image
https://consent.cookiebot.com/8ce50e97-f437-4a55-8be5-1176cf98f4ab/cd.js	714.72200006247	911.63300001062	3363	8285	200	application/x-javascript	Script
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	678.05600003339	783.56400004122	57899	150815	200	text/javascript	Script
https://www.brandweer.nl/bundles/app.js?v=XuZkPWE1_m1JpvqmWYTz7ibAWuwEpXuEK9g2d5JsqOY1	686.67300010566	786.09800001141	21597	53709	200	text/javascript	Script
https://www.brandweer.nl/bundles/leaftlet.js?v=BKe7smn9GII8Emms_jje5Ulab9u7QeKwFUyxC_CVRCo1	711.2700000871	809.30200009607	824	293	200	text/javascript	Script
https://fonts.googleapis.com/css?family=Open+Sans:400,700&display=fallback	711.47400001064	727.47899999376	1576	4562	200	text/css	Stylesheet
https://f1-eu.readspeaker.com/script/10139/webReader/r/r1217/ReadSpeaker.Styles-Button.css?v=3.3.2.1217	705.43100009672	782.72000001743	36357	62896	200	text/css	Stylesheet
https://dev.visualwebsiteoptimizer.com/j.php?a=70990&u=https%3A%2F%2Fwww.brandweer.nl%2F&r=0.5337803074383174	714.93700006977	733.01600001287	1711	2604	200	application/javascript	Script
	742.04000004102	742.07700008992	0	37	200	image/gif	Image
https://www.brandweer.nl/static/public/images/curved-line-white.svg	751.18400005158	1130.1140000578	1434	1006	200	image/svg+xml	Image
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=640&height=640&rnd=131577162202130000	753.46700008959	1321.5400000336	78297	77713	200	image/jpeg	Image
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=640&height=640&rnd=132307487346600000	763.23200005572	1329.3740000809	105203	104618	200	image/jpeg	Image
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont.woff2?v=274033	772.94300007634	1246.6650001006	25466	25028	200	application/font-woff2	Font
https://www.brandweer.nl/static/public/fonts/icons/icon.woff?v=274033	773.88400002383	1152.5790001033	10366	9928	200	application/x-font-woff	Font
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont-1.woff2?v=274033	774.92800005712	871.86200008728	25490	25052	200	application/font-woff2	Font
https://dev.visualwebsiteoptimizer.com/v.gif?cd=0&a=70990&d=brandweer.nl&u=D2A5EE4856F3FA822A9C9B62F4E4C1F99&h=a6188801c012103d90f2f4083c14d813&t=false&r=0.9362969543858437	944.77500009816	960.41100006551	506	0	200	application/javascript	Image
https://fonts.gstatic.com/s/opensans/v18/mem8YaGs126MiZpBA-UFVZ0bf8pkAg.woff2	971.47500002757	974.45400001016	9700	9132	200	font/woff2	Font
https://fonts.gstatic.com/s/opensans/v18/mem5YaGs126MiZpBA-UN7rgOUuhpKKSTjw.woff2	973.61500002444	977.01900009997	9648	9080	200	font/woff2	Font
https://www.brandweer.nl/static/public/images/rangeslider-grab.svg	1084.5640000189	1181.4710000763	1872	1444	200	image/svg+xml	Image
https://www.googletagmanager.com/gtag/js?id=AW-867935345	1104.8329999903	1126.2679999927	39713	98727	200	application/javascript	Script
https://connect.facebook.net/en_US/fbevents.js	1106.4130000304	1122.9950000998	24592	91651	200	application/x-javascript	Script
https://www.google-analytics.com/analytics.js	1112.3720000032	1116.2660000846	19452	47051	200	text/javascript	Script
https://static.hotjar.com/c/hotjar-2050866.js?sv=7	1117.7510000998	1134.1700000921	3209	7515	200	application/javascript	Script
https://www.brandweer.nl/static/public/regios.json	1146.1920000147	1249.6000000974	67897	67465	200	application/json	XHR
https://consent.cookiebot.com/8ce50e97-f437-4a55-8be5-1176cf98f4ab/cdreport.js?whitelabel=false&referer=https%3A%2F%2Fwww.brandweer.nl%2F	1156.0370000079	1267.1670001	13319	81211	200	application/x-javascript	Script
https://app.searchine.net/api/v1.0/init/?searchId=7e6edb63-5936-4ef3-9126-b2cd23910925	1188.1409999914	1285.6920000631	349	71	200	application/json	XHR
https://www.google-analytics.com/j/collect?v=1&_v=j87&aip=1&a=1728052916&t=pageview&_s=1&dl=https%3A%2F%2Fwww.brandweer.nl%2F&ul=en-us&de=UTF-8&dt=Brandweer&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=YEBAAEABAAAAAC~&jid=280244568&gjid=618484389&cid=1825398494.1607693180&tid=UA-19709987-1&_gid=1354124056.1607693180&_r=1&gtm=2wgbu0KZZNGSC&cg1=Landelijk&cg2=Informatie&cd2=Landelijk&cd3=Informatie&z=936466705	1240.6279999996	1243.5670000268	625	2	200	text/plain	XHR
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	1256.2440000474	1279.7960001044	71492	244406	200	application/x-javascript	Script
https://script.hotjar.com/modules.42ad1fc945123a89c104.js	1258.8920000708	1281.2430000631	60264	227531	200	application/javascript	Script
https://www.googleadservices.com/pagead/conversion_async.js	1276.8790000118	1367.8150000051	13425	31077	200	text/javascript	Script
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j87&tid=UA-19709987-1&cid=1825398494.1607693180&jid=280244568&gjid=618484389&_gid=1354124056.1607693180&_u=YEBAAEAAAAAAAC~&z=1223713785	1291.0580000607	1295.5450000009	697	1	200	text/plain	XHR
https://app.searchine.net/scripts/dist/searchine.search.min.js?v=78f4fa124e3025a2edeaae07fa94e773	1330.0460000755	1521.0640000878	37111	135043	200	application/javascript	Script
https://vars.hotjar.com/box-469cf41adb11dc78be68c1ae7f9457a4.html	1339.0960000688	1355.031000101	1394	2063	200	text/html	Document
https://www.facebook.com/tr/?id=1510761449155807&ev=PageView&dl=https%3A%2F%2Fwww.brandweer.nl%2F&rl=&if=false&ts=1607693179871&sw=360&sh=640&v=2.9.30&r=stable&ec=0&o=30&fbp=fb.1.1607693179866.1518784060&it=1607693179599&coo=false&rqm=GET	1528.85100001	1542.2460000264	463	44	200	image/gif	Image
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/867935345/?random=1607693179897&cv=9&fst=1607693179897&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&ig=1&data=event%3Dgtag.config&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&hn=www.googleadservices.com&us_privacy=1YNY&async=1&rfmt=3&fmt=4	1558.4760000929	1565.9790000645	2340	1599	200	text/javascript	Script
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/867935345/?random=1607693179903&cv=9&fst=1607693179903&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&ig=1&data=event%3Dpage_view&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&hn=www.googleadservices.com&us_privacy=1YNY&async=1&rfmt=3&fmt=4	1560.3840000695	1568.0649999995	2307	1597	200	text/javascript	Script
https://www.brandweer.nl/media/cledu24b/feestversiering_kerst.jpg?anchor=center&mode=crop&width=480&height=260&rnd=132514619821300000&format=webp&quality=80	1565.5310000293	1665.3820000356	24693	24110	200	image/jpeg	Image
https://app.searchine.net/Content/box.min.css?v=78f4fa124e3025a2edeaae07fa94e773	1589.9630000349	1690.4720000457	2703	7415	200	text/css	Stylesheet
https://www.google.com/pagead/1p-user-list/867935345/?random=1607693179897&cv=9&fst=1607691600000&num=1&bg=ffffff&guid=ON&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&data=event%3Dgtag.config&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&async=1&fmt=3&is_vtc=1&random=2011328130&resp=GooglemKTybQhCsO&rmt_tld=0&ipr=y	1594.6070000064	1610.2780000074	746	42	200	image/gif	Image
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/867935345/?random=1607693179945&cv=9&fst=1607693179945&num=1&bg=ffffff&guid=ON&resp=GooglemKTybQhCsO&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&ig=1&data=event%3Doptimize.callback&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&hn=www.googleadservices.com&us_privacy=1YNY&async=1&rfmt=3&fmt=4	1602.0340000978	1616.4350000909	2507	1605	200	text/javascript	Script
https://www.google.com/pagead/1p-user-list/867935345/?random=1607693179903&cv=9&fst=1607691600000&num=1&bg=ffffff&guid=ON&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&data=event%3Dpage_view&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&async=1&fmt=3&is_vtc=1&random=3827775092&resp=GooglemKTybQhCsO&rmt_tld=0&ipr=y	1605.9550000355	1617.9590000538	746	42	200	image/gif	Image
https://www.google.com/pagead/1p-user-list/867935345/?random=1607693179945&cv=9&fst=1607691600000&num=1&bg=ffffff&guid=ON&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_his=2&u_tz=-480&u_java=false&u_nplug=0&u_nmime=0&gtm=2oabu0&sendb=1&data=event%3Doptimize.callback&frm=0&url=https%3A%2F%2Fwww.brandweer.nl%2F&tiba=Brandweer&async=1&fmt=3&is_vtc=1&random=1397462349&resp=GooglemKTybQhCsO&rmt_tld=0&ipr=y	1620.6260001054	1633.8509999914	746	42	200	image/gif	Image
https://www.facebook.com/tr/?id=1510761449155807&ev=Microdata&dl=https%3A%2F%2Fwww.brandweer.nl%2F&rl=&if=false&ts=1607693180377&cd[DataLayer]=%5B%5D&cd[Meta]=%7B%22title%22%3A%22Brandweer%22%2C%22meta%3Adescription%22%3A%22Alles%20over%20de%20brandweer%2C%20brandveiligheid%20in%20en%20om%20je%20huis%2C%20op%20vakantie%20en%20op%20je%20werk%20en%20wat%20de%20brandweer%20doet.%20De%20brandweer%20doet%20meer%20dan%20blussen.%22%2C%22meta%3Akeywords%22%3A%22Brandweer%3B%20brandveiligheid%3B%20brandweer.nl%22%7D&cd[OpenGraph]=%7B%22og%3Atitle%22%3A%22Brandweer%22%2C%22og%3Adescription%22%3A%22Alles%20over%20de%20brandweer%2C%20brandveiligheid%20in%20en%20om%20je%20huis%2C%20op%20vakantie%20en%20op%20je%20werk%20en%20wat%20de%20brandweer%20doet.%20De%20brandweer%20doet%20meer%20dan%20blussen.%22%2C%22og%3Atype%22%3A%22website%22%2C%22og%3Aurl%22%3A%22https%3A%2F%2Fwww.brandweer.nl%2F%22%7D&cd[Schema.org]=%5B%5D&cd[JSON-LD]=%5B%5D&sw=360&sh=640&v=2.9.30&r=stable&ec=1&o=30&fbp=fb.1.1607693179866.1518784060&it=1607693179599&coo=false&es=automatic&tm=3&rqm=GET	2034.2690000543	2049.8880000087	463	44	200	image/gif	Image

Show Details

Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.

Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.

Tasks
Below is a list of the top-level main thread tasks that executed during page load.

Start Time (Ms)	End Time (Ms)
577.741	9.756
713.082	11.634
724.814	44.995
769.83	91.948
881.335	40.72
923.975	39.591
971.903	22.131
995.666	24.853
1026.859	5.956
1039.292	14.302
1072.647	24.496
1102.849	12.605
1122.92	24.907
1154.93	12.949
1185.327	7.095
1201.188	6.346
1209.875	5.366
1216.085	25.497
1244.754	23.544
1268.495	15
1287.008	22.021
1325.618	27.358
1366.241	52.525
1418.806	37.3
1456.16	64.404
1520.627	35.025
1556.862	7.318
1575.668	11.988
1589.587	5.254
1595.072	15.82
1621.694	9.615
1694.75	11.434
1719.364	32.817
2054.661	6.184

Show Details

Diagnostics
Below is a collection of useful page vitals.
View Data

Metrics
Below is a collection of metrics.
View Data

Opportunities

Properly size images
Images can slow down the page's load time. Brandweer.nl should consider serving more appropriate-sized images.

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Brandweer.nl should consider lazy-loading offscreen and hidden images.

Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Brandweer.nl should consider minifying CSS files.

Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Brandweer.nl should consider minifying JS files.

Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.

Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.

Initial server response time was short — Root document took 240 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.

URL	Time Spent (Ms)
https://www.brandweer.nl/	241.066

Show Details

Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.

Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.

Avoid serving legacy JavaScript to modern browsers — Potential savings of 23 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.

URL	Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	11970
https://www.brandweer.nl/bundles/app.js?v=XuZkPWE1_m1JpvqmWYTz7ibAWuwEpXuEK9g2d5JsqOY1	11826
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	64
https://connect.facebook.net/en_US/fbevents.js	45

Show Details

Diagnostics

Avoids enormous network payloads — Total size was 2,049 KiB
Large network payloads can cost users money and are linked to long load times.

URL	Transfer Size (Bytes)
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	286525
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	161321
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	134777
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	125347
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=640&height=640&rnd=132307487346600000	105203
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	92773
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=640&height=640&rnd=131577162202130000	78297
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	73106
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	71607
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	71492

Show Details

Avoid chaining critical requests — 11 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Brandweer.nl should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.

All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.

Keep request counts low and transfer sizes small — 64 requests • 2,049 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.

Resource Type	Requests	Transfer Size (Bytes)
Total	64	2098641
Image	24	1302105
Script	23	532731
Stylesheet	4	93453
Font	5	80670
Other	6	70253
Document	2	19429
Media	0	0
Third-party	33	464816

Show Details

Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.

Element
kerstbal.jpg

Show Details

Avoid large layout shifts — 4 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.

Element	CLS Contribution
Rubriek Verhalen Van De Brandweer	0.87671232876712
Kies hier je locatie	0.12328767123288
MENU	0.0345703125
25 brandweerregio's	0.00017500813802083

Show Details

Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.

Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.

Avoid long main-thread tasks — 19 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.

URL	Start Time (Ms)	Duration (Ms)
https://consent.cookiebot.com/8ce50e97-f437-4a55-8be5-1176cf98f4ab/cdreport.js?whitelabel=false&referer=https%3A%2F%2Fwww.brandweer.nl%2F	10237	210
https://www.brandweer.nl/	1906	184
https://www.brandweer.nl/bundles/head.js?v=	7620	180
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	9596	158
https://script.hotjar.com/modules.42ad1fc945123a89c104.js	10447	149
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	10596	140
https://www.brandweer.nl/	2272	129
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	9496	100
https://www.google-analytics.com/analytics.js	9927	94
https://consent.cookiebot.com/uc.js	3570	89
https://www.googletagmanager.com/gtag/js?id=AW-867935345	10094	88
https://www.brandweer.nl/	2090	81
https://www.brandweer.nl/bundles/app.js?v=XuZkPWE1_m1JpvqmWYTz7ibAWuwEpXuEK9g2d5JsqOY1	10918	66
https://app.searchine.net/scripts/dist/searchine.search.min.js?v=78f4fa124e3025a2edeaae07fa94e773	10784	63
https://connect.facebook.net/en_US/fbevents.js	10021	60
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	9390	57
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	10182	55
https://www.brandweer.nl/	2221	51
https://www.brandweer.nl/	2171	50

Show Details

Avoid non-composited animations
It is recommended to avoid non-composited animations which are often janky and increase CLS.

Avoids large JavaScript libraries with smaller alternatives — 0 large libraries found
It is recommended to work with smaller JavaScript libraries to reduce your bundle size and avoid poor performance.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.

Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Other

Max Potential First Input Delay — 210 ms
Users could experience a delay when interacting with the page.

Opportunities

Eliminate render-blocking resources — Potential savings of 690 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Brandweer.nl should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.

URL	Transfer Size (Bytes)	Potential Savings (Ms)
https://www.brandweer.nl/bundles/app.css?v=KrJuxDqADLd1uy82_bSvsYVCRh0BxdE5EjGPD9h4d4Q1	52817	930
https://www.brandweer.nl/bundles/head.js?v=	428	180
https://f1-eu.readspeaker.com/script/10139/webReader/webReader.js?pids=wr	18333	1080

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Remove unused CSS — Potential savings of 79 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Brandweer.nl should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/bundles/app.css?v=KrJuxDqADLd1uy82_bSvsYVCRh0BxdE5EjGPD9h4d4Q1	52817	44478
https://f1-eu.readspeaker.com/script/10139/webReader/r/r1217/ReadSpeaker.Styles-Button.css?v=3.3.2.1217	36357	36278

Show Details

Remove unused JavaScript — Potential savings of 197 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	71492	54168
https://script.hotjar.com/modules.42ad1fc945123a89c104.js	60264	41512
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	57899	39245
https://www.brandweer.nl/bundles/jqvalidation.js?v=i_KAlBaww09A1sDLDXz1IqrCNVjoeOiyZEotAWiieEk1	53886	25965
https://www.googletagmanager.com/gtag/js?id=AW-867935345	39713	20685
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	55098	20576

Show Details

Enable text compression — Potential savings of 55 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.

URL	Transfer Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/static/public/regios.json	67465	56277

Show Details

Diagnostics

Reduce JavaScript execution time — 1.9 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

URL	Total CPU Time (Ms)	Script Evaluation (Ms)	Script Parse (Ms)
https://www.brandweer.nl/	1312.756	22.8	10.076
https://www.brandweer.nl/bundles/jqvalidation.js?v=i_KAlBaww09A1sDLDXz1IqrCNVjoeOiyZEotAWiieEk1	485.284	407.104	10.34
Unattributable	341.972	6.212	0.628
https://www.googletagmanager.com/gtm.js?id=GTM-KZZNGSC	240.108	213.752	18.028
https://consent.cookiebot.com/8ce50e97-f437-4a55-8be5-1176cf98f4ab/cdreport.js?whitelabel=false&referer=https%3A%2F%2Fwww.brandweer.nl%2F	210.94	152.464	7.076
https://script.hotjar.com/modules.42ad1fc945123a89c104.js	191.008	159.752	15.388
https://www.brandweer.nl/bundles/app.js?v=XuZkPWE1_m1JpvqmWYTz7ibAWuwEpXuEK9g2d5JsqOY1	177.332	77.996	4.856
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	164.772	136.06	19.356
https://www.brandweer.nl/bundles/bower.js?v=xVBiwTP4hgtgxFnRWiXeUHsCi4_e1y_-xP-qxpSMK6A1	154.948	52.372	9.912
https://app.searchine.net/scripts/dist/searchine.loader.min.js	142.968	130.68	4.208
https://consent.cookiebot.com/uc.js	132.152	102.244	9.18
https://www.google-analytics.com/analytics.js	108.332	92.352	4.572
https://app.searchine.net/scripts/dist/searchine.search.min.js?v=78f4fa124e3025a2edeaae07fa94e773	73.976	56.148	11.152
https://www.googletagmanager.com/gtag/js?id=AW-867935345	67.3	54.432	9.26
https://connect.facebook.net/en_US/fbevents.js	59.964	50.032	6.82

Show Details

Metrics

First Contentful Paint — 4.3 s
The time taken for the first image or text on the page to be rendered.

Speed Index — 6.5 s
The time taken for the page contents to be visibly populated.

Largest Contentful Paint — 9.8 s
The timing of the largest text or image that is painted.

Time to Interactive — 10.0 s
The time taken for the page to become fully interactive.

Total Blocking Time — 620 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Cumulative Layout Shift — 1.035
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

First CPU Idle — 9.1 s
The time taken for the page's main thread to be quiet enough to handle input.

First Meaningful Paint — 4.8 s
The time taken for the primary content of the page to be rendered.

First Contentful Paint (3G) — 8820 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.

Opportunities

Serve images in next-gen formats — Potential savings of 610 KiB
Image formats like PNG and JPEG have poor compression when compared to other next-gen formats, such as JPEG 200, JPEG XR and WebP.

URL	Resource Size (Bytes)	Potential Savings (Bytes)
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	285941	273805
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	134192	53122
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	124763	41199
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	92189	36677
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=640&height=640&rnd=132307487346600000	104618	35602
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	72523	34991
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	71023	34065
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=640&height=640&rnd=131577162202130000	77713	30865
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	160736	29548
https://www.brandweer.nl/media/7631/screendump-2-co-animatie.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131617972318430000	34936	15126
https://www.brandweer.nl/media/15460/video-samen-corona-2.jpg?center=0.59467455621301779,0.31166666666666665&mode=crop&width=400&height=400&rnd=132297824379370000	33755	14763
https://www.brandweer.nl/media/10451/brandweerman-boot.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131855451237330000	31034	12484
https://www.brandweer.nl/media/1591/wij-zijn-de-brandweer.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131289662539770000	23228	11952

Show Details

Avoid multiple page redirects — Potential savings of 1,260 ms
Redirects can cause additional delays before the page can begin loading. Brandweer.nl should avoid multiple or unnecessary page redirects.

URL	Time Spent (Ms)
http://brandweer.nl/	630
http://www.brandweer.nl/	630
https://www.brandweer.nl/	0

Show Details

Preload key requests — Potential savings of 3,330 ms
Key requests can be preloaded by using '<link rel=preload>'. Brandweer.nl should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.

URL	Potential Savings (Ms)
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont-1.woff2?v=274033	3330
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont.woff2?v=274033	3180
https://www.brandweer.nl/static/public/fonts/icons/icon.woff?v=274033	3120

Show Details

Diagnostics

Serve static assets with an efficient cache policy — 33 resources found
Brandweer.nl can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.

URL	Cache TTL (Ms)	Transfer Size (Bytes)
https://f1-eu.readspeaker.com/script/10139/webReader/webReader.js?pids=wr	0	18333
https://dev.visualwebsiteoptimizer.com/j.php?a=70990&u=https%3A%2F%2Fwww.brandweer.nl%2F&r=0.5337803074383174	0	1711
https://dev.visualwebsiteoptimizer.com/v.gif?cd=0&a=70990&d=brandweer.nl&u=D2A5EE4856F3FA822A9C9B62F4E4C1F99&h=a6188801c012103d90f2f4083c14d813&t=false&r=0.9362969543858437	0	506
https://static.hotjar.com/c/hotjar-2050866.js?sv=7	60000	3209
https://app.searchine.net/scripts/dist/searchine.search.min.js?v=78f4fa124e3025a2edeaae07fa94e773	180000	37111
https://app.searchine.net/scripts/dist/searchine.loader.min.js	180000	5920
https://app.searchine.net/Content/box.min.css?v=78f4fa124e3025a2edeaae07fa94e773	180000	2703
https://consent.cookiebot.com/uc.js	426000	23941
https://connect.facebook.net/signals/config/1510761449155807?v=2.9.30&r=stable	1200000	71492
https://connect.facebook.net/en_US/fbevents.js	1200000	24592
https://www.google-analytics.com/analytics.js	7200000	19452
https://f1-eu.readspeaker.com/script/10139/webReader/r/r1217/ReadSpeaker.Styles-Button.css?v=3.3.2.1217	44032000	36357
https://www.brandweer.nl/media/1126/schermafbeelding-2016-09-30-om-101251.png?anchor=center&mode=crop&width=400&height=400&rnd=131339589370000000	604800000	286525
https://www.brandweer.nl/media/15399/rubriek-deze-dag-in.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288475621300000	604800000	161321
https://www.brandweer.nl/media/15417/rubriek-spreekwoorden.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291065188800000	604800000	134777
https://www.brandweer.nl/media/15418/rubriek-burger-en-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291066324730000	604800000	125347
https://www.brandweer.nl/media/1226/img_4164-medium.jpg?anchor=center&mode=crop&width=640&height=640&rnd=132307487346600000	604800000	105203
https://www.brandweer.nl/media/15398/rubriek-kindervragen.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132288471577570000	604800000	92773
https://www.brandweer.nl/media/7347/kerstbal.jpg?anchor=center&mode=crop&width=640&height=640&rnd=131577162202130000	604800000	78297
https://www.brandweer.nl/media/15233/wistje.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132278002248600000	604800000	73106
https://www.brandweer.nl/media/15420/rubriek-verhalen-van-de-brandweer.jpg?anchor=center&mode=crop&width=640&height=640&upscale=false&rnd=132291094950200000	604800000	71607
https://www.brandweer.nl/media/7631/screendump-2-co-animatie.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131617972318430000	604800000	35519
https://www.brandweer.nl/media/15460/video-samen-corona-2.jpg?center=0.59467455621301779,0.31166666666666665&mode=crop&width=400&height=400&rnd=132297824379370000	604800000	34338
https://www.brandweer.nl/media/10451/brandweerman-boot.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131855451237330000	604800000	31618
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont-1.woff2?v=274033	604800000	25490
https://www.brandweer.nl/static/public/fonts/frutiger/frutiger-webfont.woff2?v=274033	604800000	25466
https://www.brandweer.nl/media/cledu24b/feestversiering_kerst.jpg?anchor=center&mode=crop&width=480&height=260&rnd=132514619821300000&format=webp&quality=80	604800000	24693
https://www.brandweer.nl/media/1591/wij-zijn-de-brandweer.jpg?anchor=center&mode=crop&width=400&height=400&rnd=131289662539770000	604800000	23812
https://www.brandweer.nl/static/public/fonts/icons/icon.woff?v=274033	604800000	10366
https://www.brandweer.nl/static/public/images/brandweer-logo.svg	604800000	9751
https://www.brandweer.nl/static/public/images/brandweer-logo-footer.svg	604800000	6442
https://www.brandweer.nl/static/public/images/rangeslider-grab.svg	604800000	1872
https://www.brandweer.nl/static/public/images/curved-line-white.svg	604800000	1434

Show Details

Avoid an excessive DOM size — 1,719 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.

Statistic	Element	Value
Total DOM Elements		1,719
Maximum DOM Depth	SHOW DETAILS	19
Maximum Child Elements	SHOW DETAILS	61

Show Details

Minimize main-thread work — 4.1 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.

Category	Time Spent (Ms)
Script Evaluation	1836.772
Style & Layout	1089.572
Other	522.788
Rendering	304.1
Script Parsing & Compilation	170.776
Parse HTML & CSS	163.568
Garbage Collection	25.08

Show Details

Reduce the impact of third-party code — Third-party code blocked the main thread for 300 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.

Third-Party	Transfer Size (Bytes)	Main-Thread Blocking Time (Ms)
SHOW DETAILS	40623	98.86
SHOW DETAILS	64867	68.696
SHOW DETAILS	97010	59.112
SHOW DETAILS	94811	43.372
SHOW DETAILS	20077	34.776
SHOW DETAILS	54690	0
SHOW DETAILS	21276	0
SHOW DETAILS	20924	0
SHOW DETAILS	2238	0
SHOW DETAILS	2217	0