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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

77

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
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/standardseducation2x.jpg1800.0 s2.5 MiB
/-/media/ANSI/Images/News and Events/news-cover-Image-fal...1800.0 s593.4 KiB
/-/media/ANSI/Images/Highlight Images/consortia promo ima...1800.0 s417.2 KiB
www.ansi.org/-/media/ANSI/Images/Hero%20Images/homepage-hero-August-2023.jpg1800.0 s354.8 KiB
www.ansi.org/Areas/ANSI/js/ANSI.bundle.js1800.0 s310.9 KiB
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/News/T/trustAI2x.jpg1800.0 s306.8 KiB
/-/media/ANSI/Images/Banners/Critical Minerals Standards ...1800.0 s289.8 KiB
www.ansi.org/-/media/ANSI/Images/Banners/2026%20Summit%20Banner.jpg1800.0 s261.3 KiB
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/Member-updates-2023.jpg1800.0 s221.0 KiB
/-/media/ANSI/Images/Highlight Images/Welcome-new-members...1800.0 s212.3 KiB
www.ansi.org/Coveo/Hive/js/CoveoJsSearch.Lazy.min.js1800.0 s209.3 KiB
/-/media/ANSI/Images/Hero Images/ansieducationprogramsact...1800.0 s152.8 KiB
/-/media/ANSI/Images/News and Events/news-cover-Image-fal...1800.0 s139.4 KiB
/-/media/ANSI/Images/News and Events/News/welcomewordpeop...1800.0 s96.0 KiB
/-/media/ANSI/Images/News and Events/News/Student in Libr...1800.0 s84.6 KiB
/-/media/ANSI/Images/Global Navigation/Consumer-participa...1800.0 s82.1 KiB
www.ansi.org/Areas/ANSI/css/main.css?r=#BUILD-VERSION#1800.0 s81.6 KiB
/-/media/ANSI/Images/Background Images/ansi-by-the-number...1800.0 s76.7 KiB
/-/media/ANSI/Images/News and Events/News/M/moversandshak...1800.0 s59.7 KiB
www.ansi.org/Coveo/Hive/css/CoveoFullSearch.css1800.0 s52.4 KiB
/-/media/ANSI/Images/News and Events/News/C/crosswordnews...1800.0 s50.6 KiB
/-/media/ANSI/Images/News and Events/Events/Consumerswebi...1800.0 s47.9 KiB
/-/media/ANSI/Images/Highlight Images/Gov-newsletter-menu...1800.0 s45.8 KiB
/-/media/ANSI/Images/Global Navigation/ansiisopromo2x.jpg...1800.0 s40.6 KiB
/-/media/ANSI/Images/Global Navigation/ansi-essential-req...1800.0 s37.7 KiB
/-/media/ANSI/Images/Logos/ANAB Logo RGB with Name Trans...1800.0 s33.3 KiB
/uc.js?cbid=d8cad3b9-fcb1-4742-91a0-0e1bc49c50d8&implemen...1140.0 s27.0 KiB
www.ansi.org/Coveo/Hive/js/Searchbox.min__4e9032d9a7117b17aab0.js1800.0 s20.8 KiB
www.ansi.org/Areas/ScoreCCF/js/Vendor/require.js?r=#BUILD-VERSION#1800.0 s20.7 KiB
www.ansi.org/Coveo/Hive/js/cultures/en.js1800.0 s17.6 KiB
/-/media/ANSI/Images/Logos/ANAB-Logo-RGB-smaller-for-mobi...1800.0 s16.7 KiB
www.ansi.org/Coveo/Hive/js/CoveoForSitecore.Lazy.min.js1800.0 s11.8 KiB
/-/media/ANSI/Images/Global Navigation/Logos/ANSI/ANSI-bl...1800.0 s11.7 KiB
static.cloud.coveo.com/searchui/v2.10110/0/fonts/lato.woff286400.0 s24.4 KiB
/-/media/ANSI/Images/Logos/USNC Don Heirman Award.jpg?h=9...1800.0 s11.1 KiB
/-/media/ANSI/Images/Background Images/Hero Cover v14 svg...1800.0 s10.4 KiB
/-/media/ANSI/Images/Logos/Workcred-Logo-RGB-smaller-for-...1800.0 s8.3 KiB
/-/media/ANSI/Images/Logos/Workcred Logo RGB.png?h=211&ia...1800.0 s7.9 KiB
/-/media/ANSI/Images/Global Navigation/Logos/ANSI/ansi-lo...1800.0 s7.5 KiB
www.ansi.org/Areas/ANSI/js/vendor/modernizr.2.6.2.min.js1800.0 s6.3 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreRankingExpression.min.js1800.0 s3.5 KiB
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreFilterExpression.min.js1800.0 s3.4 KiB
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s2.4 KiB
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s1.6 KiB
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s1.6 KiB
www.ansi.org/Areas/ANSI/js/ANSI.bundle.config.js?r=#BUILD-VERSION#1800.0 s1.5 KiB
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s1.5 KiB
www.ansi.org/Coveo/Hive/js/Triggers.min__4e9032d9a7117b17aab0.js1800.0 s1.5 KiB
/-/media/ANSI/Images/Icons/Utilities Icons/icon-back-to-t...1800.0 s1.4 KiB
www.ansi.org/Coveo/Hive/js/HiddenQuery.min__4e9032d9a7117b17aab0.js1800.0 s1.4 KiB
www.ansi.org/Coveo/Hive/js/ValidateAnalyticsIncluded.min.js1800.0 s1.1 KiB
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s1.1 KiB
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreSyntax.min.js1800.0 s1.1 KiB
www.ansi.org/Coveo/Hive/css/CoveoForSitecore.css1800.0 s1.1 KiB
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreLocalExpression.min.js1800.0 s1015 B
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreExpressions.min.js1800.0 s1012 B
/-/media/ANSI/Images/Global Navigation/Icons/search-black...1800.0 s931 B
www.ansi.org/Coveo/Hive/js/FacetsMobileMode.min__4e9032d9a7117b17aab0.js1800.0 s875 B
www.ansi.org/Areas/ANSI/img/icons/ansi-search-icon-white.svg1800.0 s859 B
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s844 B
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreBindWithUserContext.min.js1800.0 s831 B
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s829 B
www.ansi.org/Areas/ANSI/img/icons/ansi-arrow-down-black.svg1800.0 s807 B
www.ansi.org/Areas/ANSI/img/icons/ansi-search-icon.svg1800.0 s803 B
/-/media/ANSI/Images/Global Navigation/Icons/search-white...1800.0 s803 B
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...1800.0 s780 B
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreConfigureSearchHub.min.js1800.0 s750 B
www.ansi.org/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js2868.0 s780 B
/-/media/ANSI/Images/Global Navigation/Icons/close-white....1800.0 s646 B
www.ansi.org/Areas/ANSI/img/icons/ansi-arrow-right-btn-ansi-blue.svg1800.0 s611 B
www.ansi.org/Areas/ANSI/img/icons/ansi-arrow-right-btn-black.svg1800.0 s608 B
www.ansi.org/Areas/ANSI/img/icons/slider-previous-gray.svg1800.0 s388 B
www.ansi.org/Areas/ANSI/img/icons/ansi-slider-next-white.svg1800.0 s367 B
www.ansi.org/Areas/ANSI/img/icons/slider-next-gray.svg1800.0 s363 B
www.ansi.org/Areas/ANSI/img/icons/ansi-slider-previous-white.svg1800.0 s344 B
www.ansi.org/Areas/ANSI/img/icons/ansi-add-icon.svg1800.0 s341 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:0.16189699999999999] map[node:map[boundingRect:map[bottom:708 height:228 left:0 right:1350 top:480 width:1350] lhId:page-14-DIV nodeLabel:THE AMERICAN NATIONAL STANDARDS INSTITUTE OVERSEES STANDARDS AND CONFORMITY ASS… path:1,HTML,1,BODY,11,DIV,4,DIV selector:body.ansi-home-page > div.page-wrapper > div.score-stripe snippet:<div class="score-stripe margin-bottom-sm padding-top-sm hidden-xs hidden-sm" style=""> type:node] score:0.151744 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/oxygen/v9/2sDfZG1Wl4LcnbuKjk0g.woff]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/oswald/v29/TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYw.woff]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/oswald/v29/TK3_WkUHHAIjg75cFRf3bXL8LICs18NvsUZiYw.woff]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/oxygen/v9/2sDcZG1Wl4LcnbuCNWgzaGW_.woff]]] type:subitems]] map[node:map[boundingRect:map[bottom:1651 height:224 left:16 right:1334 top:1427 width:1318] lhId:page-19-DIV nodeLabel:THIS WEEK IN STANDARDS DEVELOPMENT Review the latest domestic and internationa… path:1,HTML,1,BODY,11,DIV,10,DIV selector:body.ansi-home-page > div.page-wrapper > div.score-stripe snippet:<div class="score-stripe ansi-icon-stripe full-width-border hidden-xs cover" style="color: rgb(255, 255, 255); background-image: url(&quot;/-/media/ANSI/Images/Background%20Imag…&quot;);"> type:node] score:0.004602] map[node:map[boundingRect:map[bottom:1347 height:559 left:0 right:1350 top:788 width:1350] lhId:page-17-DIV nodeLabel:NEWS MEMBER UPDATES EVENTS LATEST HEADLINES Check out our most recent news art… path:1,HTML,1,BODY,11,DIV,7,DIV selector:body.ansi-home-page > div.page-wrapper > div.container snippet:<div class="container full-width score-page-layout-column1 margin-bottom-sm news-event…"> type:node] score:0.002881 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:687 height:93 left:1028 right:1199 top:594 width:171] lhId:page-9-IMG nodeLabel:ANAB logo path:1,HTML,1,BODY,11,DIV,4,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV,2,A,0,IMG selector:div.score-column3 > div.score-center > a.score-image-button > img.img-responsive snippet:<img src="/-/media/ANSI/Images/Logos/ANAB%20Logo%20RGB%20with%20Name%20%20Transparen…" hspace="0" vspace="20" class=" img-responsive" alt="ANAB logo"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1337 height:376 left:356 right:1326 top:961 width:971] lhId:page-23-DIV nodeLabel:Results 1-9 of 4,396 Previous 4/22/2026 ANSI Welcomes New Members in April 202… path:1,HTML,1,BODY,11,DIV,7,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV selector:div.score-style-box > div.score-column2 > div.score-right > div.score-style-box snippet:<div class="score-style-box" data-ux-module="score_bootstrap/Components/StyleBox" data-ux-state="loaded" style=""> type:node] score:0.00267]]

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
fonts.gstatic.com/s/oswald/v29/TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYw.woff50 ms
fonts.gstatic.com/s/oswald/v29/TK3_WkUHHAIjg75cFRf3bXL8LICs18NvsUZiYw.woff50 ms
fonts.gstatic.com/s/oswald/v29/TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYw.woff20 ms
static.cloud.coveo.com/searchui/v2.10110/0/fonts/lato.woff220 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
Standards Are Strategic: ANSI’s Laurie Locascio on IFAN Podcast div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/standardseducation2x.jpg2.5 MiB2.5 MiB
NIST to Develop Profile for Trustworthy AI in Critical Infrastructure div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/News/T/trustAI2x.jpg306.3 KiB295.5 KiB
Critical Minerals Standards: ANSI Launches Initiative to Strengthen U.S. Supply… div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
/-/media/ANSI/Images/Banners/Critical Minerals Standards ...289.4 KiB256.7 KiB
The ANSI Innovation Summit 2026: See What’s Next for Standards div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
www.ansi.org/-/media/ANSI/Images/Banners/2026%20Summit%20Banner.jpg260.9 KiB228.2 KiB
ANSI Welcomes New Members in April 2026 div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
/-/media/ANSI/Images/Highlight Images/Welcome-new-members...212.0 KiB184.6 KiB
From Classrooms to Competitions: How ANSI and Its Members Are Opening Standards… div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
/-/media/ANSI/Images/Hero Images/ansieducationprogramsact...152.5 KiB127.7 KiB
ANSI’s Mary Saunders Joins UC Berkeley Discussion on International Standards an… div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
/-/media/ANSI/Images/News and Events/news-cover-Image-fal...139.1 KiB119.5 KiB
div.score-center > div.score-picture-highlight > picture > img div.score-center > div.score-picture-highlight > picture > img
/-/media/ANSI/Images/News and Events/News/welcomewordpeop...95.8 KiB45.7 KiB
Movers and Shakers div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
/-/media/ANSI/Images/News and Events/News/M/moversandshak...59.5 KiB39.0 KiB
ANAB logo div.score-column3 > div.score-center > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Logos/ANAB Logo RGB with Name Trans...33.1 KiB32.9 KiB
Are You Up-to-Date in Standardization News? Test Your Knowledge with the ANSI C… div.slick-slide > div > div.ansi-vertical-hover-card > img.img-responsive
/-/media/ANSI/Images/News and Events/News/C/crosswordnews...50.5 KiB30.0 KiB
div.score-nav > div.navbar-header > a.navbar-brand > img.img-responsive div.score-nav > div.navbar-header > a.navbar-brand > img.img-responsive
/-/media/ANSI/Images/Global Navigation/Logos/ANSI/ANSI-bl...11.5 KiB11.4 KiB
Workcred logo div.score-column3 > div.score-center > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Logos/Workcred Logo RGB.png?h=211&ia...7.8 KiB7.4 KiB

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-13-DIV
nodeLabel: WE FACILITATE STANDARDIZATION SOLUTIONS
path: 1,HTML,1,BODY,11,DIV,1,DIV
selector: body.ansi-home-page > div.page-wrapper > div.score-stripe
snippet: <div class="score-stripe full-width-border margin-bottom-xs small-hero cover" style="background-image: url(&quot;/-/media/ANSI/Images/Hero%20Images/homepage-hero-Aug…&quot;);">

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.

URLTransfer SizeDuration
www.ansi.org/Areas/ANSI/css/main.css?r=#BUILD-VERSION#81.6 KiB80 ms
www.ansi.org/Areas/ANSI/js/vendor/modernizr.2.6.2.min.js6.3 KiB

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: 253 ms
URLTime Spent
ansi.org/253 ms
www.ansi.org/0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.1 s
URLTime Spent
www.ansi.org/1.2 s

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
THE AMERICAN NATIONAL STANDARDS INSTITUTE OVERSEES STANDARDS AND CONFORMITY ASS… body.ansi-home-page > div.page-wrapper > div.score-stripe
0.152
THIS WEEK IN STANDARDS DEVELOPMENT Review the latest domestic and internationa… body.ansi-home-page > div.page-wrapper > div.score-stripe
0.005
NEWS MEMBER UPDATES EVENTS LATEST HEADLINES Check out our most recent news art… body.ansi-home-page > div.page-wrapper > div.container
0.003
Results 1-9 of 4,396 Previous 4/22/2026 ANSI Welcomes New Members in April 202… div.score-style-box > div.score-column2 > div.score-right > div.score-style-box
0.003

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: 60 ms 208.1 KiB
URLTransfer SizeEst Savings
www.ansi.org/Areas/ANSI/css/main.css?r=#BUILD-VERSION#159.8 KiB145.6 KiB
www.ansi.org/Coveo/Hive/css/CoveoFullSearch.css52.3 KiB51.5 KiB
13.5 KiB11.0 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: 70 ms 630.6 KiB
URLTransfer SizeEst Savings
www.ansi.org/Areas/ANSI/js/ANSI.bundle.js310.8 KiB224.1 KiB
acsbapp.com/apps/app/dist/js/app.js216.9 KiB114.4 KiB
www.ansi.org/Coveo/Hive/js/CoveoJsSearch.Lazy.min.js201.4 KiB93.7 KiB
www.googletagmanager.com/gtag/js?id=G-6NE40HPYPR&cx=c&gtm=4e64k1h2177.0 KiB68.5 KiB
www.googletagmanager.com/gtag/js?id=AW-1071668309&cx=c&gtm=4e64k1h2145.6 KiB64.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-WGZXGD152.6 KiB64.9 KiB

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
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

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 10 ms 4.9 KiB
URLTransfer SizeEst Savings
www.ansi.org/Coveo/Hive/css/CoveoFullSearch.css52.4 KiB4.9 KiB

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 107.0 KiB
URLTransfer SizeEst Savings
www.ansi.org/Areas/ANSI/js/ANSI.bundle.js310.8 KiB92.9 KiB
www.ansi.org/Areas/ScoreCCF/js/Vendor/require.js?r=20.6 KiB14.2 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.

URLTransfer Size
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/standardseducation2x.jpg2.5 MiB
/-/media/ANSI/Images/News and Events/news-cover-Image-fal...593.4 KiB
/-/media/ANSI/Images/Highlight Images/consortia promo ima...417.2 KiB
www.ansi.org/-/media/ANSI/Images/Hero%20Images/homepage-hero-August-2023.jpg354.8 KiB
www.ansi.org/Areas/ANSI/js/ANSI.bundle.js310.9 KiB
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/News/T/trustAI2x.jpg306.8 KiB
/-/media/ANSI/Images/Banners/Critical Minerals Standards ...289.8 KiB
www.ansi.org/-/media/ANSI/Images/Banners/2026%20Summit%20Banner.jpg261.3 KiB
acsbapp.com/apps/app/dist/js/app.js222.0 KiB
www.ansi.org/-/media/ANSI/Images/News%20and%20Events/Member-updates-2023.jpg221.0 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
ANAB logo div.score-column3 > div.score-center > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Logos/ANAB Logo RGB with Name Trans...
div.score-nav > div.navbar-header > a.navbar-brand > img.img-responsive div.score-nav > div.navbar-header > a.navbar-brand > img.img-responsive
/-/media/ANSI/Images/Global Navigation/Logos/ANSI/ANSI-bl...
Workcred logo div.score-column3 > div.score-center > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Logos/Workcred Logo RGB.png?h=211&ia...
ANSI Logo div.score-column2 > div.score-left > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Global Navigation/Logos/ANSI/ansi-lo...
X logo div.score-style-box > div.score-button-group > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
Search Icon ul.nav > div.score-style-box > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Global Navigation/Icons/search-black...
Facebook logo div.score-style-box > div.score-button-group > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
LinkedIn logo div.score-style-box > div.score-button-group > a.score-image-button > img.img-responsive
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
Twitter logo div.score-style-box > div.score-well > a.score-composite-link > img.score-image
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
Facebook logo div.score-style-box > div.score-well > a.score-composite-link > img.score-image
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
LinkedIn logo div.score-style-box > div.score-well > a.score-composite-link > img.score-image
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
YouTube logo div.score-style-box > div.score-well > a.score-composite-link > img.score-image
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
Instagram logo div.score-style-box > div.score-well > a.score-composite-link > img.score-image
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
Blogger logo div.score-style-box > div.score-well > a.score-composite-link > img.score-image
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...
Flickr logo div.score-style-box > div.score-well > a.score-composite-link > img.score-image
/-/media/ANSI/Images/Global Navigation/Logos/Social Media...

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

●Max Potential First Input Delay 70 ms
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●User Timing marks and measures 5 user timings
●JavaScript execution time 0.5 s
●Minimizes main-thread work 1.3 s
●Avoid long main-thread tasks 2 long tasks found
●Avoid non-composited animations 40 animated elements found
●Network Requests
●Network Round Trip Times 50 ms
●Server Backend Latencies 150 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
○INP breakdown
83

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.

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ANSI TOOLS ABOUT NEWS EVENTS IMPACT OF STANDARDS ANSI PRODUCTS MEMBERSHIP RESOU… div.score-nav-wrapper > div.score-nav > div#mm-9b13e683-6d87-4d0d-b162-023c7d7bb988 > ul.nav
NEWS MEMBER UPDATES EVENTS div#9fe73286-8635-4b2b-b92c-83efee5ef07e > div.nav-tabs-wrapper-outer > div.nav-tabs-wrapper-inner > ul.nav

When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to make command elements more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.score-column1 > div.score-center > ul.score-menu-list > li.score-menu-list-item div.score-column1 > div.score-center > ul.score-menu-list > li.score-menu-list-item

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
 ANSI AFFILIATES:  div.score-column3 > div.score-center > div.score-content-spot > h4
STANDARDS ACTION: ANSI'S WEEKLY COMPILATION OF STANDARDS ACTIVITIES FOR PUBLIC… div#accordion-3ea1e717-6ff3-40e7-9f4c-670c5bf778da > div.score-accordion-panel > div.panel-heading > h4.panel-title

These are opportunities to improve keyboard navigation in your application.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.score-center > div.score-picture-highlight > picture > img div.score-center > div.score-picture-highlight > picture > img

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.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
NEWS div.nav-tabs-wrapper-outer > div.nav-tabs-wrapper-inner > ul.nav > li.active
MEMBER UPDATES div.nav-tabs-wrapper-outer > div.nav-tabs-wrapper-inner > ul.nav > li
EVENTS div.nav-tabs-wrapper-outer > div.nav-tabs-wrapper-inner > ul.nav > li

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

○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]`s are contained by their required parent element
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●`[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
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[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
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●`[lang]` attributes have a valid value
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○Links are distinguishable without relying on color.
○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
○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.
○`<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.
96

Best Practices

General

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.

SourceDescription
www.ansi.org/site.webmanifest
Failed to load resource: the server responded with a status of 403 ()
www.ansi.org/site.webmanifest
Failed to load resource: the server responded with a status of 403 ()
www.ansi.org/ line 2602, col 0
Manifest fetch from https://www.ansi.org/site.webmanifest failed, code 403
www.ansi.org/
Manifest fetch from https://www.ansi.org/site.webmanifest failed, code 403
www.ansi.org/Areas/ANSI/js/ANSI.bundle.js line 13922, col 22
TypeError: Cannot read properties of null (reading 'addEventListener') at Object.socialBox (https://www.ansi.org/Areas/ANSI/js/ANSI.bundle.js:13923:23) at init (https://www.ansi.org/Areas/ANSI/js/ANSI.bundle.js:13908:34)

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.

URLMap URL
www.ansi.org/Coveo/Hive/js/CoveoJsSearch.Lazy.min.jswww.ansi.org/Coveo/Hive/js/CoveoJsSearch.Lazy.min.js.map
www.ansi.org/Areas/ANSI/js/ANSI.bundle.jswww.ansi.org/Areas/ANSI/js/ANSI.bundle.js.map
www.ansi.org/Coveo/Hive/js/ValidateAnalyticsIncluded.min.jswww.ansi.org/Coveo/Hive/js/ValidateAnalyticsIncluded.min.js.map
www.ansi.org/Coveo/Hive/js/Triggers.min__4e9032d9a7117b17aab0.jswww.ansi.org/Coveo/Hive/js/Triggers.min__4e9032d9a7117b17aab0.js.map
www.ansi.org/Coveo/Hive/js/Searchbox.min__4e9032d9a7117b17aab0.jswww.ansi.org/Coveo/Hive/js/Searchbox.min__4e9032d9a7117b17aab0.js.map
www.ansi.org/Coveo/Hive/js/HiddenQuery.min__4e9032d9a7117b17aab0.jswww.ansi.org/Coveo/Hive/js/HiddenQuery.min__4e9032d9a7117b17aab0.js.map
www.ansi.org/Coveo/Hive/js/FacetsMobileMode.min__4e9032d9a7117b17aab0.jswww.ansi.org/Coveo/Hive/js/FacetsMobileMode.min__4e9032d9a7117b17aab0.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreSyntax.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecoreSyntax.min.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreRankingExpression.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecoreRankingExpression.min.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreLocalExpression.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecoreLocalExpression.min.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreFilterExpression.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecoreFilterExpression.min.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreExpressions.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecoreExpressions.min.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreConfigureSearchHub.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecoreConfigureSearchHub.min.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecoreBindWithUserContext.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecoreBindWithUserContext.min.js.map
www.ansi.org/Coveo/Hive/js/CoveoForSitecore.Lazy.min.jswww.ansi.org/Coveo/Hive/js/CoveoForSitecore.Lazy.min.js.map
●Uses HTTPS
●Avoids deprecated APIs
●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 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
75

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.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.ansi.org/outreach/government/ansi-activities#newsletterLearn More

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.score-center > div.score-picture-highlight > picture > img div.score-center > div.score-picture-highlight > picture > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

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
GO div.score-style-box > div.quick-action-wrapper > div.score-call-to-action > a.score-button
Exit div.modal-dialog > div.modal-content > div.modal-footer > a.score-button
Exit div.modal-dialog > div.modal-content > div.modal-footer > a.score-button

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
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`
○robots.txt is valid

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