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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

21

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
wcpstatic.microsoft.com/mscc/lib/v2/wcp-consent.js300.0 s273.7 KiB
uhf.microsoft.com/statics/20260421.16.02/css/style-BpAANDpw.css0.0 ms226.0 KiB
uhf.microsoft.com/statics/20260421.16.02/js/index-CuY0u_Xq.js0.0 ms103.9 KiB
/echo/etc.clientlibs/microsoft/components/structure/page/...798652.0 s552.6 KiB
uhf.microsoft.com/statics/20260421.16.02/js/Index-rMmMtAfu.js0.0 ms42.5 KiB
uhf.microsoft.com/statics/20260421.16.02/js/index-Cifsy-6O.js0.0 ms31.4 KiB
/is/image/microsoftcorp/Hero-Desktop-Xbox-Controller-Head...24392.0 s35.0 KiB
/is/image/microsoftcorp/Content-Card-Digital-Content-Xbox...25142.0 s25.0 KiB
/is/image/microsoftcorp/gldn-MSFT-hero-Edge:VP2-859x54012041.0 s21.6 KiB
uhf.microsoft.com/statics/20260421.16.02/js/index-CoTcO_uA.js0.0 ms14.4 KiB
/is/image/microsoftcorp/Highlight-Surface-Laptop-AI-7Ed-S...31793.0 s24.8 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...86400.0 s33.7 KiB
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...86400.0 s32.3 KiB
uhf.microsoft.com/statics/20260421.16.02/js/MeControl-MNOQeTbx.js0.0 ms12.5 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...86400.0 s29.2 KiB
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...798652.0 s113.0 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
c.s-microsoft.com/static/fonts/segoe-ui/west-european/Bold/latest.woff2226050.0 s29.6 KiB
/is/image/microsoftcorp/Content-Card-Surface-Pro-AI-11Ed-...5755.0 s8.3 KiB
c.s-microsoft.com/static/fonts/segoe-ui/west-european/normal/latest.woff2321867.0 s33.5 KiB
c.s-microsoft.com/static/fonts/segoe-ui/west-european/semilight/latest.woff2263776.0 s28.4 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...1984991.0 s57.5 KiB
c.s-microsoft.com/static/fonts/segoe-ui/west-european/Semibold/latest.woff2294645.0 s28.9 KiB
/is/image/microsoftcorp/Content-Card-M365-Icon-Bounce-Pre...24451.0 s8.7 KiB
/is/image/microsoftcorp/Content-Card-Microsoft-365-Copilo...14163.0 s7.4 KiB
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...798652.0 s47.7 KiB
c.s-microsoft.com/static/fonts/segoe-ui/west-european/light/latest.woff2349065.0 s26.7 KiB
/is/image/microsoftcorp/Content-Card-Azure-AI-Bloom?wid=4...35166.0 s7.8 KiB
uhf.microsoft.com/images/microsoft/RE1Mu3b.png0.0 ms4.2 KiB
/echo/etc.clientlibs/microsoft/components/structure/page/...798653.0 s35.0 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...798652.0 s33.0 KiB
/is/image/microsoftcorp/Content-Card-Surface-Pro-AI-11Ed-...23766.0 s5.0 KiB
/is/image/microsoftcorp/Content-Card-Windows-11-Business?...14374.0 s4.4 KiB
/is/image/microsoftcorp/Content-Card-Surface-Accessories-...17160.0 s4.1 KiB
uhf.microsoft.com/statics/20260421.16.02/js/client-Dd_gH7f0.js0.0 ms2.4 KiB
/is/content/microsoftcorp/Link-List-Icons-Xbox-Games-Cons...18387.0 s3.5 KiB
uhf.microsoft.com/statics/20260421.16.02/js/entry.js0.0 ms1.8 KiB
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-httpc...798652.0 s15.9 KiB
/is/content/microsoftcorp/Link-List-Icons-Accessories?wid...21708.0 s2.3 KiB
/is/content/microsoftcorp/Link-List-Icons-Surface-Devices...10474.0 s1.8 KiB
/is/content/microsoftcorp/Link-List-Icons-Business?wid=40...16691.0 s1.7 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...798652.0 s9.8 KiB
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/micro.js3600.0 s1.1 KiB
/echo/etc.clientlibs/microsoft/components/content/highlig...798652.0 s7.9 KiB
/echo/etc.clientlibs/microsoft/components/content/univers...798652.0 s7.1 KiB
/is/content/microsoftcorp/Link-List-Icons-Microsoft-365?w...18387.0 s1.0 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...798652.0 s2.9 KiB
/echo/etc.clientlibs/microsoft/clientlibs/cookie-complian...798652.0 s2.0 KiB
/echo/etc.clientlibs/microsoft/clientlibs/exp-cookiecomp/...798652.0 s1.8 KiB
/echo/etc.clientlibs/microsoft/components/content/content...798652.0 s1.5 KiB
/echo/etc.clientlibs/microsoft/components/structure/page/...2581113.0 s1.3 KiB
/echo/etc.clientlibs/microsoft/components/content/highlig...798652.0 s1.2 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...798652.0 s1.2 KiB
/echo/etc.clientlibs/microsoft/clientlibs/exp-analytics/v...798652.0 s1.1 KiB
/echo/etc.clientlibs/microsoft/components/content/back-to...798652.0 s1.1 KiB
/echo/etc.clientlibs/microsoft/components/content/dynamic...798652.0 s1008 B
/echo/etc.clientlibs/microsoft/components/content/highlig...798652.0 s914 B
/echo/etc.clientlibs/microsoft/components/content/content...798652.0 s831 B
/echo/etc.clientlibs/microsoft/components/content/highlig...798652.0 s798 B
/echo/etc.clientlibs/microsoft/components/content/content...798652.0 s797 B
/echo/etc.clientlibs/microsoft/components/content/back-to...798652.0 s730 B
/echo/etc.clientlibs/cascade.component.authoring/dynamicc...798652.0 s672 B
/echo/etc.clientlibs/microsoft/components/content/calltoa...798652.0 s650 B
/echo/etc.clientlibs/microsoft/components/content/lists/l...798652.0 s647 B
/echo/etc.clientlibs/cascade.component.authoring/clientli...798652.0 s637 B
/echo/etc.clientlibs/microsoft/components/content/lists/l...798315.0 s629 B
/echo/etc.clientlibs/microsoft/components/structure/page/...798652.0 s601 B
/echo/etc.clientlibs/cascade.component.authoring/clientli...798652.0 s581 B
/echo/etc.clientlibs/microsoft/components/content/univers...2149041.0 s592 B
/echo/etc.clientlibs/microsoft/components/content/dynamic...798652.0 s563 B
/echo/etc.clientlibs/microsoft/components/content/content...798652.0 s544 B
/echo/etc.clientlibs/microsoft/components/content/content...798652.0 s482 B
/echo/etc.clientlibs/microsoft/components/content/content...798652.0 s482 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.385676] map[node:map[boundingRect:map[bottom:5950 height:5568 left:0 right:412 top:382 width:412] lhId:page-4-DIV nodeLabel:Slide 2 of 2. Maak kennis met Surface Laptop Skip diashow aanbevolen producten … path:1,HTML,1,BODY,6,DIV selector:body.page > div.root snippet:<div class="root responsivegrid"> type:node] score:0.372392 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3591 height:244 left:12 right:400 top:3347 width:388] lhId:page-10-IMG nodeLabel:Een landschap met het Microsoft Edge-logo zwevend boven het water path:1,HTML,1,BODY,6,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,5,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,4,PICTURE,4,IMG selector:div#highlight-uid9268 > div.card-background > picture > img#img-highlight-uid9268 snippet:<img id="img-highlight-uid9268" src="https://cdn-dynmedia-1.microsoft.com/is/image/microsoftcorp/gldn-MSFT-hero…" class="card-img w-100" data-automation-test-id="HighlightImage-highlight-uid9268" alt="Een landschap met het Microsoft Edge-logo zwevend boven het water"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:950 height:44 left:86 right:326 top:906 width:240] lhId:page-1-DIV nodeLabel:Pause Vorige Volgende path:1,HTML,1,BODY,6,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,2,DIV,0,DIV,0,DIV,1,SECTION,1,DIV,1,DIV,0,DIV selector:section.slideshowOverflow > div.carousel > div > div.carousel-controls snippet:<div class="carousel-controls" data-automation-test-id="HighlightCarouselControlsDiv-"> type:node] score:0.013217 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-0-IMG nodeLabel:Xbox draadloze controller en Xbox headset in Forza Horizon 6 Limited Edition-on… path:1,HTML,1,BODY,6,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,2,DIV,0,DIV,0,DIV,1,SECTION,1,DIV,1,DIV,1,DIV,0,SECTION,0,DIV,1,DIV,0,DIV,4,PICTURE,4,IMG selector:div#highlight-uid927f > div.card-background > picture > img#img-highlight-uid927f snippet:<img id="img-highlight-uid927f" src="https://cdn-dynmedia-1.microsoft.com/is/image/microsoftcorp/Hero-Desktop-X…" class="card-img w-100" data-automation-test-id="HighlightImage-highlight-uid927f" alt="Xbox draadloze controller en Xbox headset in Forza Horizon 6 Limited Editi…"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:382 height:54 left:53 right:79 top:328 width:26] lhId:page-8-BUTTON nodeLabel:Zoeken op Microsoft.com path:1,HTML,1,BODY,5,DIV,5,UHF-HEADER,10,HEADER,0,DIV,0,DIV,6,UHF-SEARCH,2,BUTTON selector:div.uhf-header-l0 > div.uhf-header-l0__actions > uhf-search > button.uhf-nav-item snippet:<button class="uhf-nav-item uhf-nav-button uhf-search-button" data-m="{&quot;Compnm&quot;: &quot;UHF&quot;, &quot;view&quot;: &quot;UHF&quot;, &quot;Pa&quot;: &quot;UniversalSearch&quot;, &quot;cN&quot;:&quot;Search_nav…" aria-label="Zoeken op Microsoft.com"> type:node] score:4.8e-05 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3591 height:244 left:12 right:400 top:3347 width:388] lhId:page-10-IMG nodeLabel:Een landschap met het Microsoft Edge-logo zwevend boven het water path:1,HTML,1,BODY,6,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,5,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,4,PICTURE,4,IMG selector:div#highlight-uid9268 > div.card-background > picture > img#img-highlight-uid9268 snippet:<img id="img-highlight-uid9268" src="https://cdn-dynmedia-1.microsoft.com/is/image/microsoftcorp/gldn-MSFT-hero…" class="card-img w-100" data-automation-test-id="HighlightImage-highlight-uid9268" alt="Een landschap met het Microsoft Edge-logo zwevend boven het water"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:943 height:30 left:110 right:130 top:913 width:20] lhId:page-2-::after nodeLabel:div > div.carousel-controls > button.carousel-control-autoplay > ::after path:1,HTML,1,BODY,6,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,2,DIV,0,DIV,0,DIV,1,SECTION,1,DIV,1,DIV,0,DIV,0,BUTTON,0,::after selector:div > div.carousel-controls > button.carousel-control-autoplay > ::after snippet:<::after> type:node] score:1.9e-05 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-0-IMG nodeLabel:Xbox draadloze controller en Xbox headset in Forza Horizon 6 Limited Edition-on… path:1,HTML,1,BODY,6,DIV,0,DIV,0,DIV,0,MAIN,0,DIV,2,DIV,0,DIV,0,DIV,1,SECTION,1,DIV,1,DIV,1,DIV,0,SECTION,0,DIV,1,DIV,0,DIV,4,PICTURE,4,IMG selector:div#highlight-uid927f > div.card-background > picture > img#img-highlight-uid927f snippet:<img id="img-highlight-uid927f" src="https://cdn-dynmedia-1.microsoft.com/is/image/microsoftcorp/Hero-Desktop-X…" class="card-img w-100" data-automation-test-id="HighlightImage-highlight-uid927f" alt="Xbox draadloze controller en Xbox headset in Forza Horizon 6 Limited Editi…"> type:node]] map[cause:Web font extra:map[type:url value:https://www.microsoft.com/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-new/resources/fonts/MWFFluentIcons.woff2?v=2.15.3]] map[cause:Web font extra:map[type:url value:https://www.microsoft.com/echo/etc.clientlibs/cascade.component.authoring/clientlibs/clientlib-base/resources/fonts/segoe-ui/west-european/normal/latest.woff2]] map[cause:Web font extra:map[type:url value:https://www.microsoft.com/echo/etc.clientlibs/cascade.component.authoring/clientlibs/clientlib-base/resources/fonts/segoe-ui/west-european/semibold/latest.woff2]]] type:subitems]]]

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
/echo/etc.clientlibs/cascade.component.authoring/clientli...30 ms
/echo/etc.clientlibs/cascade.component.authoring/clientli...30 ms
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...25 ms

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
uhf.microsoft.com/statics/20260421.16.02/css/style-BpAANDpw.css226.0 KiB2.3 s
/echo/etc.clientlibs/cascade.component.authoring/clientli...33.0 KiB302 ms
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...47.7 KiB603 ms
/echo/etc.clientlibs/cascade.component.authoring/clientli...2.9 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...1.2 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...9.8 KiB151 ms
/echo/etc.clientlibs/microsoft/components/content/univers...592 B
/echo/etc.clientlibs/cascade.component.authoring/clientli...637 B
/echo/etc.clientlibs/cascade.component.authoring/dynamicc...672 B
/echo/etc.clientlibs/microsoft/clientlibs/exp-analytics/v...1.1 KiB151 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Een greep uit de games die je met Xbox Game Pass kunt spelen. div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Digital-Content-Xbox...24.7 KiB9.5 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.9 s
URLTime Spent
codeplex.com/1.1 s
www.microsoft.com/783 ms
www.microsoft.com/nl-nl0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Slide 2 of 2. Maak kennis met Surface Laptop Skip diashow aanbevolen producten … body.page > div.root
0.372
Pause Vorige Volgende section.slideshowOverflow > div.carousel > div > div.carousel-controls
0.013
Zoeken op Microsoft.com div.uhf-header-l0 > div.uhf-header-l0__actions > uhf-search > button.uhf-nav-item
0.000
div > div.carousel-controls > button.carousel-control-autoplay > ::after div > div.carousel-controls > button.carousel-control-autoplay > ::after
0.000

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.5 s 228.4 KiB
URLTransfer SizeEst Savings
uhf.microsoft.com/statics/20260421.16.02/css/style-BpAANDpw.css186.1 KiB182.5 KiB
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...47.3 KiB45.9 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
/echo/etc.clientlibs/microsoft/components/structure/page/...1.5 s746 ms563 ms
Unattributable1.2 s173 ms0.0 ms
www.microsoft.com/nl-nl998 ms37 ms11 ms
/echo/etc.clientlibs/cascade.component.authoring/clientli...543 ms432 ms34 ms
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...380 ms194 ms99 ms
scripts.clarity.ms/0.8.59/clarity.js380 ms354 ms14 ms
uhf.microsoft.com/statics/20260421.16.02/js/index-Cifsy-6O.js379 ms131 ms1.5 ms
/echo/etc.clientlibs/cascade.component.authoring/clientli...202 ms177 ms17 ms
/echo/etc.clientlibs/microsoft/components/structure/page/...171 ms152 ms17 ms
uhf.microsoft.com/statics/20260421.16.02/js/index-CuY0u_Xq.js124 ms114 ms4.4 ms
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...87 ms0.0 ms0.0 ms
wcpstatic.microsoft.com/mscc/lib/v2/wcp-consent.js71 ms24 ms46 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation2.9 s
Other1.6 s
Script Parsing & Compilation852 ms
Style & Layout676 ms
Parse HTML & CSS268 ms
Rendering170 ms
Garbage Collection22 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 637.7 KiB
URLTransfer SizeEst Savings
/echo/etc.clientlibs/microsoft/components/structure/page/...552.2 KiB504.0 KiB
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...112.5 KiB46.6 KiB
uhf.microsoft.com/statics/20260421.16.02/js/index-CuY0u_Xq.js103.6 KiB36.4 KiB
uhf.microsoft.com/statics/20260421.16.02/js/Index-rMmMtAfu.js42.2 KiB20.8 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...57.1 KiB8.8 KiB
uhf.microsoft.com/statics/20260421.16.02/js/index-Cifsy-6O.js31.1 KiB7.1 KiB
uhf.microsoft.com/statics/20260421.16.02/js/index-CoTcO_uA.js14.2 KiB6.2 KiB
uhf.microsoft.com/statics/20260421.16.02/js/MeControl-MNOQeTbx.js12.2 KiB4.5 KiB
/echo/etc.clientlibs/microsoft/components/content/highlig...7.5 KiB3.3 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 151.9 KiB
URLTransfer SizeEst Savings
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...112.5 KiB63.7 KiB
uhf.microsoft.com/statics/20260421.16.02/js/index-CuY0u_Xq.js103.6 KiB48.5 KiB
/echo/etc.clientlibs/cascade.component.authoring/clientli...57.1 KiB39.8 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
Een Surface Laptop, 7e editie, een Copilot+ PC, in de kleur saffier. div#highlight-uid1f7b > div.card-background > picture > img#img-highlight-uid1f7b
/is/image/microsoftcorp/Highlight-Surface-Laptop-AI-7Ed-S...
Een landschap met het Microsoft Edge-logo zwevend boven het water div#highlight-uid9268 > div.card-background > picture > img#img-highlight-uid9268
/is/image/microsoftcorp/gldn-MSFT-hero-Edge:VP2-859x540
Een Surface Pro Flex-toetsenbord en een Surface Pro, 11e editie, een Copilot+ P… div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Surface-Pro-AI-11Ed-...
Verschillende apps die deel uitmaken van een Microsoft 365-abonnement, zoals Mi… div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-M365-Icon-Bounce-Pre...
Een greep uit de games die je met Xbox Game Pass kunt spelen. div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Digital-Content-Xbox...
Muis- en dock-accessoires voor Surface-apparaten div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Surface-Accessories-...
Een zijaanzicht van een Surface Pro voor zakelijk gebruik in de kleur Platina. div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Surface-Pro-AI-11Ed-...
Een copiloot-interface zegt: "Hallo, hoe kan ik je helpen?" div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Microsoft-365-Copilo...
div.col > div.card > picture > img.card-img div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Azure-AI-Bloom?wid=4...
Een laptop met Windows 11 actief. div.col > div.card > picture > img.card-img
/is/image/microsoftcorp/Content-Card-Windows-11-Business?...
Microsoft div > div > a.uhf-microsoft-logo > img
uhf.microsoft.com/images/microsoft/RE1Mu3b.png

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Optimize DOM size
●Forced reflow
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Avoids enormous network payloads Total size was 2,108 KiB
●User Timing marks and measures 4 user timings
●Avoid long main-thread tasks 20 long tasks found
●Network Requests
●Network Round Trip Times 110 ms
●Server Backend Latencies 160 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 40 ms
○INP breakdown
○Avoid non-composited animations
100

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Shop voor je bedrijf nav#link-list-uid1e91 > ul.text-center > li.font-weight-semibold > a
Word nu lid div.card > div.card-footer > div.link-group > a.btn
Download nu div.card > div#card-body-highlight-uid9268 > div.link-group > a.btn
Koop nu div.card > div.card-footer > div.link-group > a.btn
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
77

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
/echo/etc.clientlibs/microsoft/components/structure/page/...

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Cookie

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-n...
/echo/etc.clientlibs/microsoft/components/structure/page/...
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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