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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.

63

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
cookie-cdn.cookiepro.com/scripttemplates/202405.1.0/otBannerSdk.js86400.0 s109.6 KiB
cookie-cdn.cookiepro.com/scripttemplates/otSDKStub.js86400.0 s9.3 KiB
/consent/bf886dba-bf8f-4844-8acb-cfdc11c842e6/OtAutoBlock.js86400.0 s5.6 KiB
/logos/1e230229-d2a5-43c4-abb0-23c55faa6c2b/018fc62f-ff09...86400.0 s5.3 KiB
cookie-cdn.cookiepro.com/logos/static/poweredBy_cp_logo.svg86400.0 s2.7 KiB
cookie-cdn.cookiepro.com/logos/static/ot_close.svg86400.0 s845 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...65 ms
/ajax/libs/font-awesome/4.7.0/fonts/fontawesome-webfont.w...65 ms
/s/opensans/v44/memtYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWqWu...65 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:183.365 source:map[type:text value:[unattributed]]] map[reflowTime:4.902 source:map[column:48558 line:5 type:source-location url:https://www.gmu.edu/libraries/fontawesome/js/fontawesome.min.js?v=6.4.0 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
Volunteers work in the University Greenhouse div.block > div.feature-image > div.narrow-overlaid-image > img
/sites/default/files/styles/feature_image_large/public/20...138.9 KiB107.1 KiB
President Gregory Washington a > div > div.field > img
/sites/default/files/2025-09/PGW headshot 25 aira 7x5 250...69.7 KiB52.1 KiB
Abby Weening goes over the high jump div.block > div.feature-image > div.narrow-overlaid-image > img
/sites/default/files/styles/feature_image_large/public/20...43.6 KiB29.6 KiB
Heather Apostol with the Jefferson Memorial in the background div.block > div.feature-image > div.narrow-overlaid-image > img
/sites/default/files/styles/feature_image_large/public/20...54.3 KiB26.6 KiB
Home div.region > div#block-sf-mason-2024-sitebranding > a.logo > img
www.gmu.edu/sites/default/files/Header_logo_George-Mason-University-2024_0.png12.7 KiB10.4 KiB
Grand Challenge Initiative creative div.field > div.align-center > div.field > img
/sites/default/files/styles/small_content_image/public/20...11.8 KiB5.1 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-6-DIV
nodeLabel: Eagle-eyed naturalists track wildlife at Point of View At George Mason’s Point…
path: 1,HTML,1,BODY,2,DIV,0,DIV,1,HEADER,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV
selector: div.slick-slider > div.slick-list > div.slick-track > div.slick__slide
snippet: <div class="slick__slide slide slick-slide" style="background: url(&quot;https://www.gmu.edu/sites/default/files/styles/crop_slide…&quot;);" data-slick-index="0" aria-hidden="true" tabindex="-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.

URLTransfer SizeDuration
/consent/bf886dba-bf8f-4844-8acb-cfdc11c842e6/OtAutoBlock.js5.6 KiB263 ms
/css?family=Open+Sans:300italic,400italic,700italic,300,4...2.2 KiB61 ms
/css2?family=Figtree:ital,wght@0,300..900;1,300..900&disp...905 B269 ms
cookie-cdn.cookiepro.com/scripttemplates/otSDKStub.js9.3 KiB57 ms
cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css6.1 KiB270 ms
/sites/default/files/js/js_9I9mz8TvQEu6wSVUOp33Z2QFNpJH4M...1006 B
/sites/default/files/css/css_49unu46-0MciNSAf2p8O9HY4J8gO...15.0 KiB59 ms
www.gmu.edu/modules/contrib/google_tag/js/gtag.js?tcqdy71.4 KiB59 ms
www.gmu.edu/modules/contrib/google_tag/js/gtm.js?tcqdy71.3 KiB
/sites/default/files/css/css_D3FMMNR8wBsvU4bl1TRiC5bi350g...1.7 KiB
/sites/default/files/css/css_BBvsnGArA2A-CDVgz6KniYnHv8VD...2.0 KiB
/sites/default/files/css/css_Md48a5fSTUmvzqYdvUXybQvSkvbv...12.0 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: 721 ms
URLTime Spent
gmu.edu/486 ms
www.gmu.edu/235 ms
www.gmu.edu/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

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: 160 ms 204.8 KiB
URLTransfer SizeEst Savings
/sites/default/files/js/js_YA3389NXyVrf3RJNzG535wKOt9HP4I...246.2 KiB145.6 KiB
cookie-cdn.cookiepro.com/scripttemplates/202405.1.0/otBannerSdk.js109.1 KiB59.2 KiB

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: 0.0 ms 18.2 KiB
URLTransfer SizeEst Savings
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …21.1 KiB18.2 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.gmu.edu/libraries/fontawesome/js/regular.min.js?v=6.4.01.0 MiB
www.gmu.edu/libraries/fontawesome/js/solid.min.js?v=6.4.0846.2 KiB
/sites/default/files/styles/crop_slide/public/2026-04/Wil...585.1 KiB
www.gmu.edu/libraries/fontawesome/js/sharp-solid.min.js?v=6.4.0566.5 KiB
/sites/default/files/styles/crop_slide/public/2026-04/poi...424.4 KiB
/sites/default/files/js/js_YA3389NXyVrf3RJNzG535wKOt9HP4I...247.0 KiB
www.gmu.edu/libraries/fontawesome/js/brands.min.js?v=6.4.0226.9 KiB
/sites/default/files/styles/crop_slide/public/2026-04/mas...215.2 KiB
/sites/default/files/styles/crop_slide/public/2026-04/stu...199.6 KiB
/sites/default/files/styles/crop_slide/public/2026-04/Acc...157.9 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
Home div.region > div#block-sf-mason-2024-sitebranding > a.logo > img
www.gmu.edu/sites/default/files/Header_logo_George-Mason-University-2024_0.png
Heather Apostol with the Jefferson Memorial in the background div.block > div.feature-image > div.narrow-overlaid-image > img
/sites/default/files/styles/feature_image_large/public/20...
Abby Weening goes over the high jump div.block > div.feature-image > div.narrow-overlaid-image > img
/sites/default/files/styles/feature_image_large/public/20...
Volunteers work in the University Greenhouse div.block > div.feature-image > div.narrow-overlaid-image > img
/sites/default/files/styles/feature_image_large/public/20...
George Mason University div#block-sf-mason-2024-footerinformation > div.site-info > span.footer-logo > img.logo
www.gmu.edu/themes/custom/sf_mason_2024/images/mason-logo.png

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

●Max Potential First Input Delay 120 ms
●Layout shift culprits
●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●JavaScript execution time 0.6 s
●Minimizes main-thread work 1.3 s
●Avoid long main-thread tasks 7 long tasks found
●Avoid non-composited animations 16 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 90 ms
●Server Backend Latencies 40 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 20 ms
●Avoid large layout shifts 8 layout shifts found
○INP breakdown
○User Timing marks and measures
92

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

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
Eagle-eyed naturalists track wildlife at Point of View At George Mason’s Point… div.slick-slider > div.slick-list > div.slick-track > div.slick__slide

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.

Names and labels

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 > div.field > div.video-embed-field-provider-youtube > iframe.optanon-category-C0004 div > div.field > div.video-embed-field-provider-youtube > iframe.optanon-category-C0004
div.align-center > div.field > div.video-embed-field-provider-youtube > iframe.optanon-category-C0004 div.align-center > div.field > div.video-embed-field-provider-youtube > iframe.optanon-category-C0004

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

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
MSW program skills helped this student turn her internship into a full-time role div.layout__region > div.block > div.field > h4
Around Campus   div.block > div.field > div > h4

These are opportunities to improve keyboard navigation in your application.

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.js html.js

These items highlight common accessibility best practices.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Help George Mason meet the challenge. div.field > div > p.text-align-center > a
Cookie Policy div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text > a.ot-cookie-policy-link
○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
●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
●`[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
●Input buttons have discernible text.
●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
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
○`[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 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
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
81

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.gmu.edu/Allowed

General

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
/sites/default/files/js/js_YA3389NXyVrf3RJNzG535wKOt9HP4I...
www.gmu.edu/libraries/fontawesome/js/solid.min.js?v=6.4.0
www.gmu.edu/libraries/fontawesome/js/sharp-solid.min.js?v=6.4.0
www.gmu.edu/libraries/fontawesome/js/regular.min.js?v=6.4.0
www.gmu.edu/libraries/fontawesome/js/brands.min.js?v=6.4.0
unpkg.com/tippy.js@4unpkg.com/index.all.min.js.map
unpkg.com/popper.js@1unpkg.com/popper.min.js.map
●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 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
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
85

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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.gmu.edu/news/2026-04/patriot-profile-logan-messerLEARN MORE
www.gmu.edu/news/2026-04/patriot-profile-logan-messerLEARN MORE
www.gmu.edu/news/2026-04/patriot-profile-logan-messerLEARN MORE
www.gmu.edu/cookie-policyMore information

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

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

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