Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

Request	Cache TTL	Transfer Size
support.microsoft.com/images/en-us/fb251361-e370-444d-a14c-c26563014817	3600.0 s	229.2 KiB
/lib/ucs/dist/ucsCreativeService.js?v=RNwXI4r6IRH1mrd2dPP...	900.0 s	171.0 KiB
support.microsoft.com/images/en-us/c633c7a0-de6a-4b55-b0d4-46d8b6db9d3d	3600.0 s	185.5 KiB
support.microsoft.com/images/en-us/247dac36-22f2-4bae-bc2a-cb110ae4ddf0	3600.0 s	146.6 KiB
support.microsoft.com/images/en-us/627f8c27-e629-4c04-8b11-5e365a90c3a1	3600.0 s	143.9 KiB
support.microsoft.com/images/en-us/59677f0c-5eed-4229-b6c6-9981ac4f40b4	3600.0 s	140.5 KiB
support.microsoft.com/images/en-us/44af1244-87dc-4391-869e-8789235f2aef	3600.0 s	134.9 KiB
support.microsoft.com/images/en-us/f8f27713-6c24-4e93-b397-48cad77b208c	3600.0 s	132.9 KiB
support.microsoft.com/images/en-us/226d7984-dfc2-4e6b-b911-ea5391104c32	3600.0 s	131.2 KiB
support.microsoft.com/images/en-us/a0f22b94-92af-4a92-8fab-035a1071b5fa	3600.0 s	124.0 KiB
support.microsoft.com/images/en-us/ae891560-bf9b-4117-8669-a1afa64246db	3600.0 s	99.0 KiB
mem.gfx.ms/scripts/me/MeControl/10.25136.1/en-US/meBoot.min.js	0.0 ms	61.1 KiB
/lib/oneds/dist/ms.analytics-web-4.0.2.min.js?v=O7wAAOKAV...	900.0 s	54.4 KiB
support.microsoft.com/images/en-us/9dda6c0b-71b2-4dc3-97df-8b23da766319	3600.0 s	49.7 KiB
support.microsoft.com/css/fonts/segoe-ui/west-european/normal/latest.woff2	900.0 s	33.8 KiB
js.monitor.azure.com/scripts/c/ms.shared.analytics.mectrl-3.gbl.min.js	1800.0 s	34.9 KiB
/lib/uhf/dist/uhfbundle.js?v=of4Bk4iHW2lu2zc7UaUcCo47rVLN...	900.0 s	33.2 KiB
/lib/jquery/dist/jquery.min.js?v=9_aliU8dGd2tb6OSsuzixeV4...	900.0 s	29.9 KiB
support.microsoft.com/css/fonts/support-icons/mdl2/latest_v4_71.woff2	900.0 s	29.8 KiB
support.microsoft.com/css/fonts/segoe-ui/west-european/semibold/latest.woff2	900.0 s	29.2 KiB
support.microsoft.com/css/fonts/segoe-ui/west-european/light/latest.woff2	900.0 s	27.0 KiB
support.microsoft.com/images/en-us/e6eecd30-cc50-477a-be9c-2ddea72012fe	3600.0 s	25.9 KiB
support.microsoft.com/images/en-us/af6441ee-2e11-4ca8-9f1d-a1a3ae557dfc	3600.0 s	24.7 KiB
support.microsoft.com/images/en-us/58885edf-41fb-4900-9de0-953c723c9ff8	3600.0 s	23.1 KiB
/css/Article/article.css?v=8DPw6NyG6bvzvGENuativBPQmvOlyK...	900.0 s	20.4 KiB
support.microsoft.com/images/en-us/960dcbae-7561-44b8-b876-55045fbb9930	3600.0 s	22.6 KiB
/js/Support.Main.min.js?v=YU-6bvuqYbPuSFcD3H71b99Qvws9rMx...	900.0 s	19.9 KiB
mem.gfx.ms/scripts/me/MeControl/10.25136.1/en-US/meCore.min.js	0.0 ms	15.9 KiB
support.microsoft.com/images/en-us/ab9996fa-a736-47a1-819e-ec3ed5002074	3600.0 s	19.6 KiB
/js/SilentSignInManager.Main.min.js?v=YhJIc9eIReDAmfom1iv...	900.0 s	16.4 KiB
/images/en-us/fb251361-e370-444d-a14c-c26563014817?format...	3600.0 s	17.8 KiB
/images/en-us/c633c7a0-de6a-4b55-b0d4-46d8b6db9d3d?format...	3600.0 s	17.3 KiB
/css/landingpage/landing-page.min.css?v=NcirVQqxn-GV6DlGb...	900.0 s	10.4 KiB
/images/en-us/a0f22b94-92af-4a92-8fab-035a1071b5fa?format...	3600.0 s	8.7 KiB
/images/en-us/ae891560-bf9b-4117-8669-a1afa64246db?format...	3600.0 s	7.6 KiB
support.microsoft.com/images/en-us/0171de6b-bbf7-44f8-b629-3a977f479b85	3600.0 s	7.5 KiB
/images/en-us/9dda6c0b-71b2-4dc3-97df-8b23da766319?format...	3600.0 s	7.3 KiB
/js/Article.Main.min.js?v=6H-yRjv4HjlBZFBnbP3_vwyKEVGXilc...	900.0 s	5.8 KiB
mem.gfx.ms/meversion?partner=SMCConvergence&market=en-us&uhf=1	43200.0 s	10.2 KiB
/js/feedback.js?v=vbvaO9lwMf9by3a0J9Ls2cRheSLDhg9mLlH7GKx...	900.0 s	5.1 KiB
uhf.microsoft.com/images/microsoft/RE1Mu3b.png	0.0 ms	4.2 KiB
/images/en-us/247dac36-22f2-4bae-bc2a-cb110ae4ddf0?format...	3600.0 s	5.2 KiB
/images/en-us/0171de6b-bbf7-44f8-b629-3a977f479b85?format...	3600.0 s	4.4 KiB
/images/en-us/e6eecd30-cc50-477a-be9c-2ddea72012fe?format...	3600.0 s	4.4 KiB
/images/en-us/af6441ee-2e11-4ca8-9f1d-a1a3ae557dfc?format...	3600.0 s	4.3 KiB
/images/en-us/44af1244-87dc-4391-869e-8789235f2aef?format...	3600.0 s	4.2 KiB
support.microsoft.com/images/en-us/1bdb7b5e-3b46-41d4-87c2-fa0684035927	3600.0 s	4.2 KiB
/images/en-us/960dcbae-7561-44b8-b876-55045fbb9930?format...	3600.0 s	3.8 KiB
/images/en-us/226d7984-dfc2-4e6b-b911-ea5391104c32?format...	3600.0 s	3.5 KiB
/images/en-us/ab9996fa-a736-47a1-819e-ec3ed5002074?format...	3600.0 s	3.5 KiB
support.microsoft.com/images/en-us/f5d740a1-779e-46cd-b852-3f8aa2fbe56d	3600.0 s	3.4 KiB
support.microsoft.com/images/en-us/a051f884-352c-4d85-8a8a-2bc09df49a20	3600.0 s	3.4 KiB
/images/en-us/58885edf-41fb-4900-9de0-953c723c9ff8?format...	3600.0 s	3.2 KiB
/css/glyphs/glyphs.css?v=VOnvhT441Pay0WAKH5gdcXXigXpiuNba...	900.0 s	2.8 KiB
/images/en-us/1bdb7b5e-3b46-41d4-87c2-fa0684035927?format...	3600.0 s	2.8 KiB
/css/fluent/components.css?v=-yori5RC74aL_ybBlVwfepb28vXS...	900.0 s	2.4 KiB
/images/en-us/f5d740a1-779e-46cd-b852-3f8aa2fbe56d?format...	3600.0 s	2.5 KiB
/js/TabControl.min.js?v=xwEBryftfVeCnZQEcMrHh70Rw7qWo5RBG...	900.0 s	2.2 KiB
/images/en-us/a051f884-352c-4d85-8a8a-2bc09df49a20?format...	3600.0 s	2.5 KiB
/js/PromotionBanner.Main.min.js?v=L5uqa_k2RJ-HMTc-1sGuT8c...	900.0 s	1.8 KiB
/js/SilentSignIn.Main.min.js?v=LKkJs9puSk_H_Tyd1JDE20VDXJ...	900.0 s	1.6 KiB
/css/promotionbanner/promotion-banner.css?v=cAmflE3c6Gw7n...	900.0 s	1.6 KiB
/js/MeControlCallout.Main.min.js?v=tLNC8gJXmcpgKnVZCzJOdJ...	900.0 s	1.5 KiB
/css/MeControlCallout/teaching-callout.css?v=690pjf05o15f...	900.0 s	1.4 KiB
/images/en-us/86f8e503-7d21-4aae-a17b-968aefbdc01c?format...	3600.0 s	1.4 KiB
support.microsoft.com/images/en-us/6979e698-d659-4e48-9db4-cd7d7638c8a8	3600.0 s	1.3 KiB
support.microsoft.com/images/en-us/a3269605-c7e7-4a55-8c2c-c6b2884138bc	3600.0 s	1.3 KiB
support.microsoft.com/images/en-us/8a5df6e3-e1b3-46c4-b6ff-f4688f6687cd	3600.0 s	1.3 KiB
support.microsoft.com/images/en-us/6fc02924-9ce4-4747-8fb7-69554b4789d7	3600.0 s	1.2 KiB
/css/SearchBox/search-box.css?v=bybwzGBajHicVXspVs540UfV0...	900.0 s	1.1 KiB
/css/sitewide/articleCss-overwrite.css?v=D0lQRoIlvFHSQBRT...	900.0 s	1.0 KiB
/js/shimmerExperiment.Main.min.js?v=srYmQ6fE_kpOEpNK2BnwK...	900.0 s	1.0 KiB
/css/supportbridge/support-bridge.css?v=ft5yipT-SPVc4yMl4...	900.0 s	981 B
support.microsoft.com/images/en-us/86f8e503-7d21-4aae-a17b-968aefbdc01c	3600.0 s	1.1 KiB
/css/fonts/site-fonts.css?v=XWcxZPSEmN3tnHWAVMOFsAlPJq7au...	900.0 s	810 B

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.

URL	Est Savings
www.microsoft.com/mwf/_h/v3.54/mwf.app/fonts/mwfmdl2-v3.54.woff	35 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:49.7 source:map[column:116913 line:5 type:source-location url:https://support.microsoft.com/lib/oneds/dist/ms.analytics-web-4.0.2.min.js?v=O7wAAOKAVN2-OLLnoh3KjWb9pW6khEi85GWLxrUYqXA urlProvider:network]]]

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.

	URL	Resource Size	Est Savings
Abstract 3D image with Microsoft Copilot color theme. `div.grid-box > div.grid-item > a.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/fb251361-e370-444d-a14c-c26563014817	228.6 KiB	203.8 KiB
Abstract illustration featuring the icons for Microsoft 365 Copilot, Excel, Pow… `div.grid-box > div.grid-item > a.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/c633c7a0-de6a-4b55-b0d4-46d8b6db9d3d	184.9 KiB	160.1 KiB
Abstract banner with gradient color scheme. `div.grid-box > div.grid-item > div.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/247dac36-22f2-4bae-bc2a-cb110ae4ddf0	146.0 KiB	126.0 KiB
Abstract illustration with a colorful swirling glass-like design. `div.grid-box > div.grid-item > div.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/627f8c27-e629-4c04-8b11-5e365a90c3a1	143.3 KiB	123.3 KiB
Abstract rendering with a blue and purple color scheme. `div.grid-box > div.grid-item > div.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/59677f0c-5eed-4229-b6c6-9981ac4f40b4	140.0 KiB	119.9 KiB
Abstract banner with gradient color scheme. `div.grid-box > div.grid-item > div.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/44af1244-87dc-4391-869e-8789235f2aef	134.4 KiB	114.3 KiB
Abstract banner with geometric shapes and gradient color scheme. `div.grid-box > div.grid-item > div.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/f8f27713-6c24-4e93-b397-48cad77b208c	132.3 KiB	112.3 KiB
Abstract colorful gradient illustration. `div.grid-box > div.grid-item > div.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/226d7984-dfc2-4e6b-b911-ea5391104c32	130.6 KiB	110.6 KiB
Colorful abstract banner with geometric shapes arranged in a swirling pattern. `div.grid-box > div.grid-item > div.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/a0f22b94-92af-4a92-8fab-035a1071b5fa	123.5 KiB	103.4 KiB
Illustration of Create in Microsoft 365 Copilot. `div.grid-box > div.grid-item > a.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/ae891560-bf9b-4117-8669-a1afa64246db	98.5 KiB	73.8 KiB
Outlook product logo with grey background `div.grid-box > div.grid-item > a.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/e6eecd30-cc50-477a-be9c-2ddea72012fe	25.4 KiB	8.8 KiB
Microsoft Copilot logo with grey background `div.grid-box > div.grid-item > a.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/af6441ee-2e11-4ca8-9f1d-a1a3ae557dfc	24.3 KiB	7.6 KiB
Logo of Surface devices with grey background `div.grid-box > div.grid-item > a.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/58885edf-41fb-4900-9de0-953c723c9ff8	22.7 KiB	6.0 KiB
Teams product logo with grey background `div.grid-box > div.grid-item > a.fluent-component > div.CardPreview`	support.microsoft.com/images/en-us/960dcbae-7561-44b8-b876-55045fbb9930	22.1 KiB	5.5 KiB

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

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.

URL	Transfer Size	Duration
/onerfstatics/marketingsites-neu-prod/west-european/shell...	23.1 KiB	953 ms
/css/landingpage/landing-page.min.css?v=NcirVQqxn-GV6DlGb...	10.4 KiB	302 ms
/css/MeControlCallout/teaching-callout.css?v=690pjf05o15f...	1.4 KiB
/css/sitewide/articleCss-overwrite.css?v=D0lQRoIlvFHSQBRT...	1.0 KiB
/css/SearchBox/search-box.css?v=bybwzGBajHicVXspVs540UfV0...	1.1 KiB
/css/Article/article.css?v=8DPw6NyG6bvzvGENuativBPQmvOlyK...	20.4 KiB
/css/glyphs/glyphs.css?v=VOnvhT441Pay0WAKH5gdcXXigXpiuNba...	2.8 KiB
/css/fonts/site-fonts.css?v=XWcxZPSEmN3tnHWAVMOFsAlPJq7au...	810 B

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

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: 1.0 s

URL	Time Spent
support.microsoft.com/	807 ms
support.microsoft.com/	205 ms
support.microsoft.com/en-us	0.0 ms

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

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.

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: 260 ms 95.0 KiB

URL	Transfer Size	Est Savings
/files/fabric-cdn-prod_20230815.002/office-ui-fabric-core...	30.7 KiB	30.7 KiB
/onerfstatics/marketingsites-neu-prod/west-european/shell...	22.3 KiB	20.1 KiB
/css/Article/article.css?v=8DPw6NyG6bvzvGENuativBPQmvOlyK...	19.9 KiB	19.1 KiB
.mectrl_resetStyle,a.mectrl_resetStyle,button.mectrl_resetStyle{height:auto;min-width:auto; … } …	15.2 KiB	14.9 KiB
.mectrl_resetStyle,a.mectrl_resetStyle,button.mectrl_resetStyle{height:auto;min-width:auto; … } …	10.3 KiB	10.2 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: 430 ms 70.2 KiB

URL	Transfer Size	Est Savings
/lib/ucs/dist/ucsCreativeService.js?v=RNwXI4r6IRH1mrd2dPP...	170.5 KiB	70.2 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.

URL	Total CPU Time	Script Evaluation	Script Parse
/lib/jquery/dist/jquery.min.js?v=9_aliU8dGd2tb6OSsuzixeV4...	757 ms	601 ms	6.4 ms
support.microsoft.com/en-us	681 ms	159 ms	7.2 ms
/lib/uhf/dist/uhfbundle.js?v=of4Bk4iHW2lu2zc7UaUcCo47rVLN...	464 ms	138 ms	12 ms
Unattributable	426 ms	5.8 ms	0.0 ms
/lib/ucs/dist/ucsCreativeService.js?v=RNwXI4r6IRH1mrd2dPP...	384 ms	311 ms	54 ms
/lib/oneds/dist/ms.analytics-web-4.0.2.min.js?v=O7wAAOKAV...	319 ms	85 ms	12 ms
mem.gfx.ms/scripts/me/MeControl/10.25136.1/en-US/meBoot.min.js	190 ms	125 ms	22 ms
/js/SilentSignInManager.Main.min.js?v=YhJIc9eIReDAmfom1iv...	183 ms	166 ms	4.5 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.

Category	Time Spent
Script Evaluation	1.7 s
Other	942 ms
Style & Layout	538 ms
Rendering	216 ms
Script Parsing & Compilation	149 ms
Parse HTML & CSS	92 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 reason	Failure type
The page has an unload handler in the main frame.	Actionable
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
support.microsoft.com/images/en-us/fb251361-e370-444d-a14c-c26563014817	229.2 KiB
support.microsoft.com/en-us	220.1 KiB
support.microsoft.com/images/en-us/c633c7a0-de6a-4b55-b0d4-46d8b6db9d3d	185.5 KiB
/lib/ucs/dist/ucsCreativeService.js?v=RNwXI4r6IRH1mrd2dPP...	171.0 KiB
support.microsoft.com/images/en-us/247dac36-22f2-4bae-bc2a-cb110ae4ddf0	146.6 KiB
support.microsoft.com/images/en-us/627f8c27-e629-4c04-8b11-5e365a90c3a1	143.9 KiB
support.microsoft.com/images/en-us/59677f0c-5eed-4229-b6c6-9981ac4f40b4	140.5 KiB
support.microsoft.com/images/en-us/44af1244-87dc-4391-869e-8789235f2aef	134.9 KiB
support.microsoft.com/images/en-us/f8f27713-6c24-4e93-b397-48cad77b208c	132.9 KiB
support.microsoft.com/images/en-us/226d7984-dfc2-4e6b-b911-ea5391104c32	131.2 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
div.theme-light > div.c-uhfh-gcontainer-st > a#uhfLogo > img.c-image `div.theme-light > div.c-uhfh-gcontainer-st > a#uhfLogo > img.c-image`	uhf.microsoft.com/images/microsoft/RE1Mu3b.png

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoid long main-thread tasks 11 long tasks found

●Avoid non-composited animations 11 animated elements found

●Network Requests

●Network Round Trip Times 50 ms

●Server Backend Latencies 310 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

○LCP request discovery

○User Timing marks and measures

○Avoid large layout shifts

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.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Skip to main content `div#headerArea > div#headerRegion > div#headerUniversalHeader > a#uhfSkipToMain`
All Microsoft expand to see list of Microsoft products and services `header.c-uhfh > div.theme-light > div.c-uhfh-gcontainer-st > button.c-action-trigger`
Microsoft `header.c-uhfh > div.theme-light > div.c-uhfh-gcontainer-st > a#uhfLogo`
Support `div.theme-light > div.c-uhfh-gcontainer-st > div.cat-logo-button-cont > button#uhfCatLogoButton`
Search for help `div.c-uhfh-gcontainer-st > div.c-uhfh-actions > form#searchForm > button#search`

These are opportunities to improve keyboard navigation in your application.

○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

●Form elements have associated labels

●`[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 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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Elements with visible text labels have matching accessible names.

○`[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

○Links are distinguishable without relying on color.

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○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.

○Identical links have the same purpose.

○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.

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 / Warning	Source
Unload event listeners are deprecated and will be removed.	/lib/oneds/dist/ms.analytics-web-4.0.2.min.js?v=O7wAAOKAV... line 5, col 47176
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.	/lib/uhf/dist/uhfbundle.js?v=of4Bk4iHW2lu2zc7UaUcCo47rVLN... line 4, col 10908

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	Map URL
/lib/ucs/dist/ucsCreativeService.js?v=RNwXI4r6IRH1mrd2dPP...
mem.gfx.ms/meversion?partner=SMCConvergence&market=en-us&uhf=1	mem.gfx.ms/meInlineBackCompat.min.js.map
/lib/oneds/dist/ms.analytics-web-4.0.2.min.js?v=O7wAAOKAV...	support.microsoft.com/lib/oneds/dist/ms.analytics-web-4.0.2.min.js.map
/js/TabControl.min.js?v=xwEBryftfVeCnZQEcMrHh70Rw7qWo5RBG...	support.microsoft.com/js/TabControl.min.js.map
/js/Support.Main.min.js?v=YU-6bvuqYbPuSFcD3H71b99Qvws9rMx...	support.microsoft.com/js/Support.Main.min.js.map
/js/SilentSignInManager.Main.min.js?v=YhJIc9eIReDAmfom1iv...	support.microsoft.com/js/SilentSignInManager.Main.min.js.map
/js/SilentSignIn.Main.min.js?v=LKkJs9puSk_H_Tyd1JDE20VDXJ...	support.microsoft.com/js/SilentSignIn.Main.min.js.map
/js/shimmerExperiment.Main.min.js?v=srYmQ6fE_kpOEpNK2BnwK...	support.microsoft.com/js/shimmerExperiment.Main.min.js.map
/js/PromotionBanner.Main.min.js?v=L5uqa_k2RJ-HMTc-1sGuT8c...	support.microsoft.com/js/PromotionBanner.Main.min.js.map
/js/MeControlCallout.Main.min.js?v=tLNC8gJXmcpgKnVZCzJOdJ...	support.microsoft.com/js/MeControlCallout.Main.min.js.map
/js/Article.Main.min.js?v=6H-yRjv4HjlBZFBnbP3_vwyKEVGXilc...	support.microsoft.com/js/Article.Main.min.js.map
mem.gfx.ms/scripts/me/MeControl/10.25136.1/en-US/meCore.min.js	mem.gfx.ms/scripts/me/MeControl/10.25136.1/en-US/meCore.min.js.map
mem.gfx.ms/scripts/me/MeControl/10.25136.1/en-US/meBoot.min.js	mem.gfx.ms/scripts/me/MeControl/10.25136.1/en-US/meBoot.min.js.map
js.monitor.azure.com/scripts/c/ms.shared.analytics.mectrl-3.gbl.min.js	js.monitor.azure.com/scripts/c/ms.shared.analytics.mectrl-3.2.18.gbl.min.js.map

●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

●No issues in the `Issues` panel in Chrome Devtools

●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

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Skip to main content `div#headerArea > div#headerRegion > div#headerUniversalHeader > a#uhfSkipToMain`
`div#smcTeachingCalloutPopover > div.popoverMessageWrapper > div.calloutDismiss > a#teachingCalloutDismiss`

To appear in search results, crawlers need access to your app.

○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

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`