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
www.opm.gov/media/rhmfpt0o/seniorwoman.jpeg	0.0 ms	9.0 MiB
www.opm.gov/cdn/lib/font-awesome/6.2.0/webfonts/fa-solid-900.woff2	0.0 ms	318.4 KiB
www.opm.gov/media/dvkfscs1/spotlight_1_700x700.jpg	604800.0 s	471.7 KiB
www.opm.gov/cdn/fonts/public-sans/PublicSans-Regular.woff2	0.0 ms	32.2 KiB
www.opm.gov/cdn/fonts/public-sans/PublicSans-Bold.woff2	0.0 ms	32.1 KiB
www.opm.gov/media/fxklujw0/spotlight_2_700x350.jpg	604800.0 s	162.2 KiB
www.opm.gov/cdn/img/opm-uswds/opm_logo.svg	0.0 ms	12.8 KiB
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/all.min.css	604800.0 s	97.7 KiB
dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=OPM	0.0 ms	9.4 KiB
www.opm.gov/cdn/css/themes/opm-uswds/styles.css?v=20240724	604800.0 s	60.5 KiB
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	0.0 ms	4.5 KiB
www.opm.gov/media/gkmkxrk5/audience_3.png	604800.0 s	36.6 KiB
www.opm.gov/media/w2rck50b/audience_1.png	604800.0 s	32.8 KiB
www.opm.gov/media/pyfnqesc/audience_2.png	604800.0 s	32.0 KiB
www.opm.gov/cdn/js/uswds.min.js	604800.0 s	25.6 KiB
www.opm.gov/cdn/js/opm-uswds/core.standard.js?v=20230221	604800.0 s	23.6 KiB
www.opm.gov/cdn/img/opm-uswds/opm_logo_white.svg	0.0 ms	2.0 KiB
www.opm.gov/cdn/img/close-white.svg	0.0 ms	1.7 KiB
www.opm.gov/img/global/nav_dropdown_bg.png	604800.0 s	16.4 KiB
www.opm.gov/cdn/js/core/core.standard.libs.js?v=20191104	604800.0 s	13.1 KiB
www.opm.gov/cdn/img/icon-dot-gov.svg	0.0 ms	1.2 KiB
www.opm.gov/cdn/img/icon-https.svg	0.0 ms	1.1 KiB
www.opm.gov/cdn/img/global/svg/angle-arrow-down-primary.svg	0.0 ms	979 B
www.opm.gov/cdn/css/responsive/global-medium.css	604800.0 s	8.4 KiB
www.opm.gov/css/home/home.css?v=2023020	604800.0 s	4.0 KiB
www.opm.gov/cdn/css/responsive/global-small.css	604800.0 s	3.3 KiB
www.opm.gov/img/global/Flag.gif	604800.0 s	2.3 KiB
www.opm.gov/cdn/css/lib/colorbox/colorbox.css	604800.0 s	2.1 KiB
www.opm.gov/js/jstorage.min.js	604800.0 s	2.0 KiB
www.opm.gov/js/core/webmethods.js	604800.0 s	1.7 KiB
www.opm.gov/css/print.css	604800.0 s	1.3 KiB
www.opm.gov/img/global/ico-search.png	604800.0 s	1.2 KiB
www.opm.gov/cdn/css/print.css	604800.0 s	1.1 KiB
www.opm.gov/js/core/webmethods.setup.js	604800.0 s	917 B
www.opm.gov/js/loadfaqs.js	604800.0 s	865 B
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/v5-font-face.min.css	604800.0 s	812 B
www.opm.gov/cdn/img/us_flag_small.png	604800.0 s	630 B
/p.css?s=1&k=vgn7vpt&ht=tk&f=22792.22793.40090.40092&a=39...	604800.0 s	172 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:0.334038] map[node:map[boundingRect:map[bottom:4700 height:4560 left:0 right:412 top:140 width:412] lhId:page-6-MAIN nodeLabel:ORA: The Future of Federal Retirement Starts Here Apply online with confidence… path:1,HTML,1,BODY,10,MAIN selector:body#htmBody > main#main-content snippet:<main class="usa-layout-docs__main desktop:grid-col-auto usa-layout-docs" id="main-content"> type:node] score:0.334038 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:104 height:34 left:16 right:256 top:70 width:240] lhId:page-10-IMG nodeLabel:U.S. Office of Personnel Management logo path:1,HTML,1,BODY,7,HEADER,0,DIV,0,DIV,0,A,0,IMG selector:div.usa-navbar > div#-logo > a > img.usa-header__logo-img snippet:<img class="usa-header__logo-img" src="/cdn/img/opm-uswds/opm_logo.svg" alt="U.S. Office of Personnel Management logo"> type:node]]] 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.

URL	Est Savings
www.opm.gov/cdn/fonts/public-sans/PublicSans-Bold.woff2	240 ms
www.opm.gov/cdn/lib/font-awesome/6.2.0/webfonts/fa-solid-900.woff2	220 ms
www.opm.gov/cdn/fonts/public-sans/PublicSans-Regular.woff2	185 ms
/af/a19ad7/00000000000000003b9b4051/27/l?primer=7cdcb44be...	5.0 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:91.221 source:map[column:15901 line:84 type:source-location url:https://www.opm.gov/cdn/js/uswds.min.js urlProvider:network]] map[reflowTime:0.08 source:map[column:14391 line:72 type:source-location url:https://www.opm.gov/cdn/js/uswds.min.js urlProvider:network]] map[reflowTime:0.045 source:map[column:5236 line:72 type:source-location url:https://www.opm.gov/cdn/js/uswds.min.js 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
How OPM is Preparing for the Surge in Retirements Key FAQs `body#htmBody > main#main-content > section#main-main-content > a.spotlight-item`	www.opm.gov/media/rhmfpt0o/seniorwoman.jpeg	9.0 MiB	2.3 MiB
ORA: The Future of Federal Retirement Starts Here Apply online with confidence… `body#htmBody > main#main-content > section#main-main-content > a.spotlight-item`	www.opm.gov/media/dvkfscs1/spotlight_1_700x700.jpg	471.1 KiB	391.3 KiB
Manage your Retirement Annuity Online With Services Online, enjoy self-service… `body#htmBody > main#main-content > section#main-main-content > a.spotlight-item`	www.opm.gov/media/fxklujw0/spotlight_2_700x350.jpg	161.6 KiB	121.7 KiB
div.grid-row > div.featured-audience > a > img.audience-avatar `div.grid-row > div.featured-audience > a > img.audience-avatar`	www.opm.gov/media/gkmkxrk5/audience_3.png	36.0 KiB	33.4 KiB
div.grid-row > div.featured-audience > a > img.audience-avatar `div.grid-row > div.featured-audience > a > img.audience-avatar`	www.opm.gov/media/w2rck50b/audience_1.png	32.3 KiB	29.7 KiB
div.grid-row > div.featured-audience > a > img.audience-avatar `div.grid-row > div.featured-audience > a > img.audience-avatar`	www.opm.gov/media/pyfnqesc/audience_2.png	31.4 KiB	28.7 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:340.289 label:Time to first byte subpart:timeToFirstByte] map[duration:1190.114 label:Resource load delay subpart:resourceLoadDelay] map[duration:222.175 label:Resource load duration subpart:resourceLoadDuration] map[duration:1188.39 label:Element render delay subpart:elementRenderDelay]]

lhId: page-2-A

nodeLabel: Manage your Retirement Annuity Online With Services Online, enjoy self-service…

path: 1,HTML,1,BODY,10,MAIN,0,SECTION,1,A

selector: body#htmBody > main#main-content > section#main-main-content > a.spotlight-item

snippet: <a href="https://www.servicesonline.opm.gov/" class="spotlight-item" style="background-image: url(/media/fxklujw0/spotlight_2_700x350.jpg)">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-2-A

nodeLabel: Manage your Retirement Annuity Online With Services Online, enjoy self-service…

path: 1,HTML,1,BODY,10,MAIN,0,SECTION,1,A

selector: body#htmBody > main#main-content > section#main-main-content > a.spotlight-item

snippet: <a href="https://www.servicesonline.opm.gov/" class="spotlight-item" style="background-image: url(/media/fxklujw0/spotlight_2_700x350.jpg)">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
www.opm.gov/	http/1.1
www.opm.gov/cdn/css/themes/opm-uswds/styles.css?v=20240724	http/1.1
www.opm.gov/cdn/css/responsive/global-medium.css	http/1.1
www.opm.gov/cdn/css/responsive/global-small.css	http/1.1
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/all.min.css	http/1.1
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/v5-font-face.min.css	http/1.1
www.opm.gov/cdn/css/lib/colorbox/colorbox.css	http/1.1
www.opm.gov/css/home/home.css?v=2023020	http/1.1
www.opm.gov/js/jstorage.min.js	http/1.1
www.opm.gov/js/core/webmethods.setup.js	http/1.1
www.opm.gov/cdn/img/us_flag_small.png	http/1.1
www.opm.gov/cdn/img/icon-dot-gov.svg	http/1.1
www.opm.gov/cdn/img/icon-https.svg	http/1.1
www.opm.gov/cdn/img/opm-uswds/opm_logo.svg	http/1.1
www.opm.gov/cdn/img/close-white.svg	http/1.1
www.opm.gov/img/global/Flag.gif	http/1.1
www.opm.gov/img/global/ico-search.png	http/1.1
www.opm.gov/media/gkmkxrk5/audience_3.png	http/1.1
www.opm.gov/media/w2rck50b/audience_1.png	http/1.1
www.opm.gov/media/pyfnqesc/audience_2.png	http/1.1
www.opm.gov/cdn/img/opm-uswds/opm_logo_white.svg	http/1.1
www.opm.gov/cdn/js/uswds.min.js	http/1.1
www.opm.gov/cdn/js/core/core.standard.libs.js?v=20191104	http/1.1
www.opm.gov/cdn/js/opm-uswds/core.standard.js?v=20230221	http/1.1
www.opm.gov/frequently-asked-questions/	http/1.1
www.opm.gov/js/loadfaqs.js	http/1.1
www.opm.gov/js/core/webmethods.js	http/1.1
www.opm.gov/css/print.css	http/1.1
www.opm.gov/cdn/css/print.css	http/1.1
www.opm.gov/cdn/img/global/svg/angle-arrow-down-primary.svg	http/1.1
www.opm.gov/cdn/fonts/public-sans/PublicSans-Regular.woff2	http/1.1
www.opm.gov/media/dvkfscs1/spotlight_1_700x700.jpg	http/1.1
www.opm.gov/media/fxklujw0/spotlight_2_700x350.jpg	http/1.1
www.opm.gov/media/rhmfpt0o/seniorwoman.jpeg	http/1.1
www.opm.gov/cdn/fonts/public-sans/PublicSans-Bold.woff2	http/1.1
www.opm.gov/cdn/lib/font-awesome/6.2.0/webfonts/fa-solid-900.woff2	http/1.1
www.opm.gov/json/alerts.json?callback=LoadGlobalBanner&_=1776893384561	http/1.1
/json/PrimaryNavigation.json?callback=LoadNavigationItems...	http/1.1
www.opm.gov/json/operatingstatus.json	http/1.1
/json/breadcrumbs.json?TargetNavUrl=/&callback=LoadBreadc...	http/1.1
/json/secondarynavigation.json?TargetNavUrl=/&callback=Lo...	http/1.1
/json/featuredtopics.json?callback=LoadNavigationFeatured...	http/1.1
www.opm.gov/control-panel/js/control-panel.js?v=1776893385435	http/1.1
www.opm.gov/img/global/nav_dropdown_bg.png	http/1.1
www.opm.gov/favicon.ico	http/1.1

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.

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

value: no origins were preconnected

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
www.opm.gov/frequently-asked-questions/	0 B	343 ms
www.opm.gov/js/core/webmethods.setup.js	917 B	343 ms
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/all.min.css	97.7 KiB	3.8 s
www.opm.gov/cdn/css/lib/colorbox/colorbox.css	2.1 KiB	644 ms
www.opm.gov/js/jstorage.min.js	2.0 KiB	343 ms
www.opm.gov/cdn/css/responsive/global-small.css	3.3 KiB	644 ms
www.opm.gov/cdn/css/responsive/global-medium.css	8.4 KiB	946 ms
www.opm.gov/cdn/css/themes/opm-uswds/styles.css?v=20240724	60.5 KiB	2.6 s
www.opm.gov/css/home/home.css?v=2023020	4.0 KiB	494 ms
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/v5-font-face.min.css	812 B	644 ms
/p.css?s=1&k=vgn7vpt&ht=tk&f=22792.22793.40090.40092&a=39...	172 B	754 ms
use.typekit.net/vgn7vpt.css	983 B	757 ms
ajax.googleapis.com/ajax/libs/jquery/3.6.3/jquery.min.js	31.1 KiB	2.0 s
/css?family=Merriweather:400,700\|Source+Sans+Pro:400,600,...	1.4 KiB	758 ms

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

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

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: 761 ms

URL	Time Spent
opm.gov/	761 ms
www.opm.gov/	0.0 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.

Element	Layout shift score
ORA: The Future of Federal Retirement Starts Here Apply online with confidence… `body#htmBody > main#main-content`	0.334

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: 990 ms 155.5 KiB

URL	Transfer Size	Est Savings
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/all.min.css	97.2 KiB	97.0 KiB
www.opm.gov/cdn/css/themes/opm-uswds/styles.css?v=20240724	60.0 KiB	58.6 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: 1.7 s 301.9 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64k0h1	146.9 KiB	105.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-WGTWNGX	131.8 KiB	72.0 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.0 KiB	62.2 KiB
www.googletagmanager.com/gtag/js?id=G-1QQK83MZ36	151.6 KiB	61.8 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
Unattributable	998 ms	9.2 ms	0.0 ms
www.opm.gov/cdn/js/uswds.min.js	428 ms	46 ms	12 ms
www.googletagmanager.com/gtag/js?id=G-1QQK83MZ36	420 ms	317 ms	66 ms
www.opm.gov/cdn/js/opm-uswds/core.standard.js?v=20230221	364 ms	213 ms	24 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	307 ms	246 ms	59 ms
www.googletagmanager.com/gtm.js?id=GTM-WGTWNGX	227 ms	171 ms	54 ms
www.opm.gov/	163 ms	9.4 ms	3.1 ms
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	131 ms	125 ms	1.9 ms
ajax.googleapis.com/ajax/libs/jquery/3.6.3/jquery.min.js	100 ms	71 ms	13 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64k0h1	86 ms	29 ms	57 ms
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/all.min.css	86 ms	0.0 ms	0.0 ms
www.opm.gov/cdn/css/themes/opm-uswds/styles.css?v=20240724	55 ms	0.0 ms	0.0 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	1.3 s
Other	1.1 s
Style & Layout	441 ms
Script Parsing & Compilation	304 ms
Parse HTML & CSS	257 ms
Garbage Collection	46 ms
Rendering	37 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

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 8.5 KiB

URL	Transfer Size	Est Savings
www.opm.gov/cdn/js/opm-uswds/core.standard.js?v=20230221	23.1 KiB	8.5 KiB

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
www.opm.gov/media/rhmfpt0o/seniorwoman.jpeg	9.0 MiB
www.opm.gov/media/dvkfscs1/spotlight_1_700x700.jpg	471.7 KiB
www.opm.gov/cdn/lib/font-awesome/6.2.0/webfonts/fa-solid-900.woff2	318.4 KiB
www.opm.gov/media/fxklujw0/spotlight_2_700x350.jpg	162.2 KiB
www.googletagmanager.com/gtag/js?id=G-1QQK83MZ36	151.9 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	147.1 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e64k0h1	147.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-WGTWNGX	131.9 KiB
www.opm.gov/cdn/lib/font-awesome/6.2.0/css/all.min.css	97.7 KiB
/s/merriweather/v33/u-4e0qyriQwlOrhSvowK_l5UcA6zuSYEqOzpP...	95.4 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
OPM `div.grid-container > div.grid-row > div.usa-footer__logo > img.usa-footer__logo-img`	www.opm.gov/cdn/img/opm-uswds/opm_logo_white.svg
div.grid-row > div.featured-audience > a > img.audience-avatar `div.grid-row > div.featured-audience > a > img.audience-avatar`	www.opm.gov/media/gkmkxrk5/audience_3.png
div.grid-row > div.featured-audience > a > img.audience-avatar `div.grid-row > div.featured-audience > a > img.audience-avatar`	www.opm.gov/media/w2rck50b/audience_1.png
div.grid-row > div.featured-audience > a > img.audience-avatar `div.grid-row > div.featured-audience > a > img.audience-avatar`	www.opm.gov/media/pyfnqesc/audience_2.png
U.S. Office of Personnel Management logo `div.usa-navbar > div#-logo > a > img.usa-header__logo-img`	www.opm.gov/cdn/img/opm-uswds/opm_logo.svg
U.S. flag `header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag`	www.opm.gov/cdn/img/us_flag_small.png

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

●Optimize DOM size

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 14 user timings

●Avoid long main-thread tasks 16 long tasks found

●Network Requests

●Network Round Trip Times 10 ms

●Server Backend Latencies 190 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 180 ms

○INP breakdown

○Avoid non-composited animations

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.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.grid-container > div.grid-row > div.featured-audience > a `div.grid-container > div.grid-row > div.featured-audience > a`
div.grid-container > div.grid-row > div.featured-audience > a `div.grid-container > div.grid-row > div.featured-audience > a`
div.grid-container > div.grid-row > div.featured-audience > a `div.grid-container > div.grid-row > div.featured-audience > a`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

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 `body#htmBody > a.usa-skipnav`

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

●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

●`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

●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

○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.

○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.

○Image elements do not have `[alt]` attributes that are redundant text.

○Elements with visible text labels have matching accessible names.

○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

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Displayed size	Actual size	Expected size
U.S. flag `header.usa-banner__header > div.usa-banner__inner > div.grid-col-auto > img.usa-banner__header-flag`	www.opm.gov/cdn/img/us_flag_small.png	16 x 11	16 x 11	24 x 17

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.	ajax.googleapis.com/ajax/libs/jquery/3.6.3/jquery.min.js line 1, col 41786

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
www.opm.gov/	`Refused to apply style from 'https://www.opm.gov/frequently-asked-questions/' because its MIME type ('text/html') is not a supported stylesheet MIME type, and strict MIME checking is enabled.`
www.opm.gov/	`Refused to execute script from 'https://www.opm.gov/frequently-asked-questions/' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.`

●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

●Page has the HTML doctype

●Properly defines charset

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

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

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

If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #	Content	Error
7	`Disallow: https://apps.opm.gov/tax_calc/withhold_calc/index.cfm`	`Pattern should either be empty, start with "/" or "*"`

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

●Links are crawlable

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

○Document has a valid `rel=canonical`