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· 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.

41

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
/home/images/photos/home/home-banner.webp180.0 s448.2 KiB
www.uab.edu/home/images/design-elements/uab-skyline.png180.0 s389.6 KiB
www.uab.edu/home/images/photos/home/defined-by-excellence.jpg180.0 s338.2 KiB
www.uab.edu/home/images/photos/home/city-is-your-classroom.webp180.0 s332.4 KiB
www.uab.edu/home/images/design-elements/uab-skyline-mobile.png180.0 s309.2 KiB
www.uab.edu/home/images/logos/uab-watermark.png180.0 s299.4 KiB
www.uab.edu/home/images/photos/home/by-the-numbers.webp180.0 s275.5 KiB
/joomla4/media/templates/site/sleepyDragon/css/j4-modern/...180.0 s94.3 KiB
www.uab.edu/home/images/photos/home/transforming_lives.webp180.0 s81.1 KiB
www.uab.edu/home/media/com_widgetkit/lib/uikit/dist/js/uikit.min.js180.0 s51.4 KiB
cdn.cookielaw.org/scripttemplates/6.39.0/otBannerSdk.js86400.0 s88.7 KiB
www.uab.edu/home/media/vendor/jquery/js/jquery.min.js?3.7.1180.0 s30.1 KiB
/joomla4/media/templates/site/sleepyDragon/css/j4-modern/...180.0 s27.5 KiB
/joomla4/media/templates/site/sleepyDragon/js/j4-modern/b...180.0 s23.2 KiB
www.uab.edu/home/images/design-elements/geometric-pattern.svg180.0 s22.1 KiB
www.uab.edu/home/media/com_widgetkit/lib/uikit/dist/js/uikit-icons.min.js180.0 s21.5 KiB
f.vimeocdn.com/p/4.46.43/js/player.module.js1209600.0 s211.5 KiB
www.uab.edu/home/media/com_widgetkit/css/site.css180.0 s20.1 KiB
/home/media/plg_system_jcemediabox/js/jcemediabox.min.js?...180.0 s17.1 KiB
f.vimeocdn.com/p/4.46.43/js/vendor.module.js1209600.0 s93.3 KiB
player.vimeo.com/api/player.js1800.0 s9.0 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/css/j4-modern/main.css180.0 s6.6 KiB
kit.fontawesome.com/1243b65314.js60.0 s5.9 KiB
www.uab.edu/home/media/com_widgetkit/js/maps.js180.0 s5.9 KiB
www.uab.edu/home/images/design-elements/line-opposite.svg180.0 s5.4 KiB
www.uab.edu/home/images/design-elements/lines.svg180.0 s5.4 KiB
www.uab.edu/home/images/design-elements/lines-campus-green.svg180.0 s5.4 KiB
/home/media/plg_system_jcemediabox/css/jcemediabox.min.cs...180.0 s4.8 KiB
cdn.cookielaw.org/consent/660b8afe-7011-433e-b4af-a7229d2202c5/OtAutoBlock.js86400.0 s11.1 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/js/jquery-migrate.min.js180.0 s4.3 KiB
cse.google.com/cse.js?cx=934f5599a8cbf6f310.0 ms3.9 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/css/j4-modern/uikit.css180.0 s3.8 KiB
www.uab.edu/home/media/system/js/core.min.js?a3d8f8180.0 s3.6 KiB
/logos/06d2be91-e3a8-46bf-b4f1-b9bdcd7c597d/af6eb8b4-e150...86400.0 s8.6 KiB
cdn.cookielaw.org/consent/660b8afe-7011-433e-b4af-a7229d2202c5/otSDKStub.js86400.0 s7.1 KiB
f.vimeocdn.com/p/4.46.43/css/player.css1209600.0 s23.9 KiB
www.uab.edu/home/media/system/js/messages.min.js?9a4811180.0 s2.2 KiB
/home/media/plg_system_jcepro/site/css/content.min.css?86...180.0 s1.5 KiB
/home/media/vendor/joomla-custom-elements/css/joomla-aler...180.0 s1.3 KiB
www.uab.edu/home/site_specific.css?v=1757032164180.0 s1.2 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/js/scripts.js180.0 s1.1 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg86400.0 s2.6 KiB
www.google.com/cse/static/style/look/v6/default.css3000.0 s1.2 KiB
www.uab.edu/home/media/legacy/js/jquery-noconflict.min.js?504da4180.0 s474 B
/p.css?s=1&k=pqq8aix&ht=tk&f=137.139.140.171.172.173.174....604800.0 s172 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:0.5695020000000001] map[node:map[boundingRect:map[bottom:947 height:784 left:0 right:1350 top:163 width:1350] lhId:page-6-DIV nodeLabel:Welcome to UAB We’re committed to supporting people across our community, city… path:1,HTML,1,BODY,5,DIV selector:body#itemid-101 > div snippet:<div role="banner"> type:node] score:0.282926 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1240 height:240 left:1155 right:1395 top:1000 width:240] lhId:page-1-IMG nodeLabel:uab watermark path:1,HTML,1,BODY,7,DIV,1,DIV,1,DIV,1,DIV,1,MAIN,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,1,IMG selector:div > div#mod-custom135 > div.tw-my-16 > img.tw-hidden snippet:<img src="/home/images/logos/uab-watermark.png" alt="uab watermark" width="2433" height="2433" class="tw-hidden md:tw-block tw-absolute tw-right-0 tw-top-0 tw-w-60" style="opacity: .1; z-index: -2; top: -75px; right: -50px;"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:947 height:784 left:0 right:1350 top:163 width:1350] lhId:page-6-DIV nodeLabel:Welcome to UAB We’re committed to supporting people across our community, city… path:1,HTML,1,BODY,5,DIV selector:body#itemid-101 > div snippet:<div role="banner"> type:node] score:0.280361 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1240 height:240 left:1155 right:1395 top:1000 width:240] lhId:page-1-IMG nodeLabel:uab watermark path:1,HTML,1,BODY,7,DIV,1,DIV,1,DIV,1,DIV,1,MAIN,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,1,IMG selector:div > div#mod-custom135 > div.tw-my-16 > img.tw-hidden snippet:<img src="/home/images/logos/uab-watermark.png" alt="uab watermark" width="2433" height="2433" class="tw-hidden md:tw-block tw-absolute tw-right-0 tw-top-0 tw-w-60" style="opacity: .1; z-index: -2; top: -75px; right: -50px;"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:42 height:34 left:1097 right:1334 top:8 width:237] lhId:page-10-DIV nodeLabel:Search Explore UAB path:1,HTML,1,BODY,3,HEADER,6,DIV,0,DIV,0,DIV,6,DIV selector:div > div.tw-bg-uab-green > div.tw-flex > div.tw-flex snippet:<div class="tw-flex tw-items-center tw-gap-2"> type:node] score:0.001843] map[node:map[boundingRect:map[bottom:940 height:130 left:0 right:1350 top:810 width:1350] lhId:page-11-DIV nodeLabel:Privacy at UAB We use cookies to improve our site, personalize content and ser… path:1,HTML,1,BODY,20,DIV,1,DIV selector:body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk snippet:<div id="onetrust-banner-sdk" class="otFlat bottom vertical-align-content" tabindex="0" style="bottom: 0px;"> type:node] score:0.00066] map[node:map[boundingRect:map[bottom:940 height:130 left:0 right:1350 top:810 width:1350] lhId:page-11-DIV nodeLabel:Privacy at UAB We use cookies to improve our site, personalize content and ser… path:1,HTML,1,BODY,20,DIV,1,DIV selector:body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk snippet:<div id="onetrust-banner-sdk" class="otFlat bottom vertical-align-content" tabindex="0" style="bottom: 0px;"> type:node] score:0.000453]]

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
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.11.0.woff270 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.1.0.woff270 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-brands-400-5.8.1.woff270 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.0.7.woff265 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.7.0.woff265 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.0.9.woff260 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.2.0.woff255 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-brands-400-5.6.0.woff250 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-light-300-5.0.0.woff245 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.0.11.woff245 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.10.1.woff245 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.3.0.woff245 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.0.0.woff240 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.10.2.woff240 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-regular-400-5.0.0.woff240 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-brands-400-5.14.0.woff235 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-brands-400-5.8.2.woff235 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.11.1.woff230 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-brands-400-5.0.0.woff225 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-solid-900-5.14.0.woff220 ms
/af/eef83b/00000000000000003b9afb57/27/l?primer=6068fae50...15 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-regular-400-5.10.2.woff215 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-regular-400-5.11.0.woff215 ms
ka-p.fontawesome.com/releases/v5.15.4/webfonts/pro-fa-light-300-5.10.2.woff215 ms
/af/40f7d5/00000000000000003b9afb5a/27/l?primer=6068fae50...10 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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:4.731 source:map[column:27 line:14 type:source-location url:https://cse.google.com/cse.js?cx=934f5599a8cbf6f31 urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:49.669 source:map[column:31 line:1474 type:source-location url:https://www.uab.edu/home/ urlProvider:network]] map[reflowTime:33.981 source:map[column:277483 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/6.39.0/otBannerSdk.js urlProvider:network]] map[reflowTime:0.975 source:map[column:277834 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/6.39.0/otBannerSdk.js urlProvider:network]] map[reflowTime:8.206 source:map[column:148577 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/6.39.0/otBannerSdk.js urlProvider:network]] map[reflowTime:48.197 source:map[type:text value:[unattributed]]] map[reflowTime:0.333 source:map[column:17 line:2039 type:source-location url:https://www.uab.edu/home/ urlProvider:network]] map[reflowTime:4.509 source:map[column:280 line:358 type:source-location url:https://www.google.com/cse/static/element/b33cba5881f68fbf/cse_element__en.js?usqp=CAI%3D urlProvider:network]] map[reflowTime:0.222 source:map[column:390 line:508 type:source-location url:https://www.google.com/cse/static/element/b33cba5881f68fbf/cse_element__en.js?usqp=CAI%3D urlProvider:network]] map[reflowTime:0.585 source:map[column:36 line:921 type:source-location url:https://www.uab.edu/home/ 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.

URLResource SizeEst Savings
div > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full div > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full
/home/images/photos/home/home-banner.webp447.5 KiB367.9 KiB
uab watermark div > div#mod-custom135 > div.tw-my-16 > img.tw-hidden
www.uab.edu/home/images/logos/uab-watermark.png298.8 KiB295.9 KiB
excellence div > div.tw-grid > div > img.tw-w-full
www.uab.edu/home/images/photos/home/defined-by-excellence.jpg337.6 KiB286.0 KiB
home 5 div.tw-my-16 > div.tw-grid > div > img
www.uab.edu/home/images/photos/home/city-is-your-classroom.webp331.8 KiB280.2 KiB
by the numbers div.tw-max-w-1340 > div.tw-grid > div.md:tw-block > img
www.uab.edu/home/images/photos/home/by-the-numbers.webp274.9 KiB223.3 KiB
home 5 div.tw-my-16 > div.tw-grid > div > img
www.uab.edu/home/images/photos/home/transforming_lives.webp80.6 KiB60.5 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:2027.023 label:Time to first byte subpart:timeToFirstByte] map[duration:216.872 label:Resource load delay subpart:resourceLoadDelay] map[duration:857.865 label:Resource load duration subpart:resourceLoadDuration] map[duration:7221.061 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: div > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full
path: 1,HTML,1,BODY,5,DIV,0,DIV,1,DIV,0,IMG
selector: div > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full
snippet: <img class="tw-w-full" src="/home/images/photos/home/home-banner.webp#joomlaImage://local-images/photo…" alt="">

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-0-IMG
nodeLabel: div > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full
path: 1,HTML,1,BODY,5,DIV,0,DIV,1,DIV,0,IMG
selector: div > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full
snippet: <img class="tw-w-full" src="/home/images/photos/home/home-banner.webp#joomlaImage://local-images/photo…" alt="">

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
/joomla4/media/templates/site/sleepyDragon/js/j4-modern/b...23.2 KiB
www.uab.edu/home/media/com_widgetkit/lib/uikit/dist/js/uikit-icons.min.js21.5 KiB
/joomla4/media/templates/site/sleepyDragon/css/j4-modern/...27.5 KiB93 ms
www.uab.edu/home/media/com_widgetkit/lib/uikit/dist/js/uikit.min.js51.4 KiB
www.uab.edu/home/media/legacy/js/jquery-noconflict.min.js?504da4474 B
www.uab.edu/home/media/vendor/jquery/js/jquery.min.js?3.7.130.1 KiB93 ms
www.uab.edu/home/media/com_widgetkit/css/site.css20.1 KiB
/home/media/plg_system_jcemediabox/css/jcemediabox.min.cs...4.8 KiB
/home/media/plg_system_jcepro/site/css/content.min.css?86...1.5 KiB
/joomla4/media/templates/site/sleepyDragon/css/j4-modern/...94.3 KiB278 ms
www.uab.edu/home/media/system/js/core.min.js?a3d8f83.6 KiB
www.uab.edu/home/site_specific.css?v=17570321641.2 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/js/scripts.js1.1 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/css/j4-modern/main.css6.6 KiB
/home/media/plg_system_jcemediabox/js/jcemediabox.min.js?...17.1 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/css/j4-modern/uikit.css3.8 KiB
/home/media/vendor/joomla-custom-elements/css/joomla-aler...1.3 KiB
www.uab.edu/joomla4/media/templates/site/sleepyDragon/js/jquery-migrate.min.js4.3 KiB
/p.css?s=1&k=pqq8aix&ht=tk&f=137.139.140.171.172.173.174....172 B204 ms
cdn.cookielaw.org/consent/660b8afe-7011-433e-b4af-a7229d2202c5/otSDKStub.js7.1 KiB
cdn.cookielaw.org/consent/660b8afe-7011-433e-b4af-a7229d2202c5/OtAutoBlock.js11.1 KiB215 ms
use.typekit.net/pqq8aix.css1.4 KiB214 ms
kit.fontawesome.com/1243b65314.js5.9 KiB215 ms

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: 1.3 s
URLTime Spent
uab.edu/839 ms
www.uab.edu/438 ms
www.uab.edu/home/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.

ElementLayout shift score
Welcome to UAB We’re committed to supporting people across our community, city… body#itemid-101 > div
0.283
Welcome to UAB We’re committed to supporting people across our community, city… body#itemid-101 > div
0.280
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.002
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.001
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000
Privacy at UAB We use cookies to improve our site, personalize content and ser… body#itemid-101 > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.000

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 90 ms 226.9 KiB
URLTransfer SizeEst Savings
/joomla4/media/templates/site/sleepyDragon/css/j4-modern/...93.9 KiB92.3 KiB
/*! * Font Awesome Pro 5.15.4 by @fontawesome - https://fontawesome.com * License - https://fonta…73.9 KiB73.4 KiB
/joomla4/media/templates/site/sleepyDragon/css/j4-modern/...27.2 KiB24.6 KiB
www.uab.edu/home/media/com_widgetkit/css/site.css19.7 KiB19.7 KiB
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …20.0 KiB16.8 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: 90 ms 166.3 KiB
URLTransfer SizeEst Savings
/cse/static/element/b33cba5881f68fbf/cse_element__en.js?u...98.5 KiB49.4 KiB
cdn.cookielaw.org/scripttemplates/6.39.0/otBannerSdk.js88.4 KiB45.6 KiB
www.uab.edu/home/media/com_widgetkit/lib/uikit/dist/js/uikit.min.js51.0 KiB39.8 KiB
cse.google.com/adsense/search/async-ads.js43.3 KiB31.5 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
The page has an unload handler in a sub frame.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: 0.0 ms 2.8 KiB
URLTransfer SizeEst Savings
www.google.com/cse/static/element/b33cba5881f68fbf/default_v6+en.css9.7 KiB2.8 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.uab.edu/home/images/photos/home/home-banner.webp448.2 KiB
www.uab.edu/home/images/design-elements/uab-skyline.png389.6 KiB
www.uab.edu/home/images/photos/home/defined-by-excellence.jpg338.2 KiB
www.uab.edu/home/images/photos/home/city-is-your-classroom.webp332.4 KiB
www.uab.edu/home/images/design-elements/uab-skyline-mobile.png309.2 KiB
www.uab.edu/home/images/logos/uab-watermark.png299.4 KiB
www.uab.edu/home/images/photos/home/by-the-numbers.webp275.5 KiB
f.vimeocdn.com/p/4.46.43/js/player.module.js211.5 KiB
/cse/static/element/b33cba5881f68fbf/cse_element__en.js?u...98.5 KiB
/joomla4/media/templates/site/sleepyDragon/css/j4-modern/...94.3 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 > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full div > div.moduletable > div.uab-banner-with-intro__image > img.tw-w-full
/home/images/photos/home/home-banner.webp

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

●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Max Potential First Input Delay 60 ms
●Minify JavaScript
●JavaScript execution time 0.2 s
●Minimizes main-thread work 1.1 s
●Avoid long main-thread tasks 1 long task found
●Avoid non-composited animations 1 animated element found
●Network Requests
●Network Round Trip Times 210 ms
●Server Backend Latencies 230 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 220 ms
○INP breakdown
○User Timing marks and measures
85

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Apr 21, 2026 li.tw-relative > div.tw-col-span-2 > div.tw-flex > div
Apr 20, 2026 li.tw-relative > div.tw-col-span-2 > div.tw-flex > div
Apr 21, 2026 li.tw-relative > div.tw-col-span-2 > div.tw-flex > div

These are opportunities to improve the legibility of your content.

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
ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full
ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full
ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.tw-relative > div.md:tw-grid > div.md:tw-col-span-2 > iframe.ratio div.tw-relative > div.md:tw-grid > div.md:tw-col-span-2 > iframe.ratio

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.tw-bg-white > div#main-nav > div > a div.tw-bg-white > div#main-nav > div > a
li.tw-relative > div.tw-col-span-2 > div.tw-text-right > a.stretched-link li.tw-relative > div.tw-col-span-2 > div.tw-text-right > a.stretched-link
li.tw-relative > div.tw-col-span-2 > div.tw-text-right > a.stretched-link li.tw-relative > div.tw-col-span-2 > div.tw-text-right > a.stretched-link
li.tw-relative > div.tw-col-span-2 > div.tw-text-right > a.stretched-link li.tw-relative > div.tw-col-span-2 > div.tw-text-right > a.stretched-link

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.

○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
●`[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
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●`<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
●ARIA IDs are unique
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements 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
○No form fields have multiple labels
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○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.
96

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
by the numbers div.tw-max-w-1340 > div.tw-grid > div.md:tw-hidden > img
www.uab.edu/home/images/photos/home/by-the-numbers.webp765 x 577 (1.33)1300 x 975 (1.33)
●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
●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 DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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.uab.edu/privacyMore information

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
ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full
ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full
ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full ul.tw-list-none > li.tw-relative > div.tw-overflow-hidden > img.tw-w-full

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
div#main-nav > div.tw-flex > div.tw-flex > a.off-canvas-menu-trigger div#main-nav > div.tw-flex > div.tw-flex > a.off-canvas-menu-trigger

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

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