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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

34

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
uwo.ca/img/homepage/2026/EarthDay_Banner_V3_Text_left.mp40.0 ms5.3 MiB
uwo.ca/img/homepage/2024/Bees-hp-banner-mobile.jpg0.0 ms4.4 MiB
uwo.ca/img/homepage/2025/FT-Cards1-2.jpg0.0 ms905.0 KiB
uwo.ca/img/_test/Dr-Robyn-Klein.jpg0.0 ms607.1 KiB
uwo.ca/img/home-page/WU_homepage_ourcommunity_nancy.jpg0.0 ms440.4 KiB
uwo.ca/img/_test/experience-bg1.jpg0.0 ms337.1 KiB
uwo.ca/img/homepage/2025/FT-Cards2v2.jpg0.0 ms313.0 KiB
uwo.ca/img/homepage/2025/testimonial%20block-artemis.jpg0.0 ms156.9 KiB
uwo.ca/img/homepage/2024/content-apr/Research6.jpg0.0 ms140.2 KiB
/img/homepage/2024/content-nov/Our_Community_Homepage_Upd...0.0 ms122.8 KiB
uwo.ca/img/homepage/2025/impact-project/3.png0.0 ms97.5 KiB
uwo.ca/img/homepage/2025/impact-project/1.png0.0 ms94.8 KiB
uwo.ca/img/homepage/2025/impact-project/2.png0.0 ms94.6 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
uwo.ca/img/homepage/2025/impact-project/4.png0.0 ms75.2 KiB
www.uwo.ca/web_standards/2023-hp/assets/js/slick.min.js0.0 ms42.2 KiB
www.uwo.ca/web_standards/2023-hp/assets/fonts/Benton%20Sans%20Book.woff20.0 ms42.0 KiB
www.uwo.ca/web_standards/2023-hp/assets/fonts/Benton%20Sans%20Bold.woff20.0 ms41.1 KiB
www.uwo.ca/web_standards/2023-hp/assets/fonts/Benton%20Sans%20Medium.woff20.0 ms40.9 KiB
/signals/config/1115330005283642?v=2.9.303&r=stable&domai...1200.0 s44.7 KiB
www.uwo.ca/web_standards/2025-global/assets/img/logos/d-western-logo.svg0.0 ms32.1 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/logos/mustangs-logo.svg0.0 ms18.7 KiB
www.uwo.ca/web_standards/2023-hp/assets/js/brand-2023.js0.0 ms18.5 KiB
/web_standards/2025-global/assets/img/logos/allin-lockup-...0.0 ms17.0 KiB
www.uwo.ca/web_standards/2023-hp/assets/js/orbit-interactive.js0.0 ms7.8 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
static.hotjar.com/c/hotjar-3724544.js?sv=760.0 s6.2 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/ajax-loader.gif0.0 ms4.4 KiB
www.uwo.ca/web_standards/2023-hp/assets/css/orbit.css0.0 ms3.6 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/logos/u15-logo.svg0.0 ms3.3 KiB
www.uwo.ca/web_standards/2025-global/assets/img/icons/threads.svg0.0 ms2.4 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/instagram.svg0.0 ms2.3 KiB
www.uwo.ca/web_standards/2023-hp/assets/css/slick-theme.css0.0 ms1.3 KiB
www.uwo.ca/web_standards/2023-hp/assets/js/bs-init.js0.0 ms1.3 KiB
www.uwo.ca/web_standards/2025-global/assets/img/icons/bluesky.svg0.0 ms1.2 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/youtube.svg0.0 ms1.2 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/linkedin-in.svg0.0 ms1.2 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/tiktok.svg0.0 ms1.2 KiB
www.uwo.ca/web_standards/2023-hp/assets/css/slick.css0.0 ms1.1 KiB
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/search.svg0.0 ms1.1 KiB
/collect?v=2&fmt=js&pid=3337596&time=1776813791784&url=ht...0.0 ms910 B
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/facebook-f.svg0.0 ms852 B
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/ribbon.svg0.0 ms820 B
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/brand-hamburger.svg0.0 ms760 B
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Medium.css0.0 ms704 B
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Bold.css0.0 ms701 B
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Book.css0.0 ms701 B
www.uwo.ca/web_standards/2023-hp/assets/css/Tiempos.css0.0 ms694 B
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/Icon-Close.svg0.0 ms676 B
/rp.gif?ts=1776813791571&id=a2_ht2nzimkjjuu&event=gtm.ini...0.0 ms666 B
/web_standards/2023-hp/assets/img/assets/icons/scrollbar-...0.0 ms625 B
/web_standards/2023-hp/assets/img/assets/icons/scrollbar-...0.0 ms615 B
/config/ca/407e167e-3ff7-4f54-936b-9c9c49eb9417.js?v=3.55...0.0 ms467 B
/rp.gif?ts=1776813791573&id=a2_ht2nzimkjjuu&event=gtm.ini...0.0 ms76 B
/rp.gif?ts=1776813791574&id=a2_ht2nzimkjjuu&event=gtm.js&...0.0 ms76 B
/rp.gif?ts=1776813791575&id=a2_ht2nzimkjjuu&event=gtm.dom...0.0 ms76 B
/rp.gif?ts=1776813792347&id=a2_ht2nzimkjjuu&event=detect_...0.0 ms76 B
/rp.gif?ts=1776813792857&id=a2_ht2nzimkjjuu&event=gtm.loa...0.0 ms76 B
/tr/?id=1115330005283642&ev=PageView&dl=https%3A%2F%2Fuwo...0.0 ms19 B

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:18.985 source:map[column:30453 line:2 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js 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:21.06 source:map[type:text value:[unattributed]]] map[reflowTime:0.16 source:map[column:11 line:1 type:source-location url:https://www.uwo.ca/web_standards/2023-hp/assets/js/bs-init.js urlProvider:network]] map[reflowTime:0.036 source:map[column:29 line:218 type:source-location url:https://www.uwo.ca/web_standards/2023-hp/assets/js/orbit-interactive.js urlProvider:network]] map[reflowTime:0.814 source:map[column:12839 line:0 type:source-location url:https://cdnjs.cloudflare.com/ajax/libs/aos/2.3.4/aos.js urlProvider:network]] map[reflowTime:1.437 source:map[column:177 line:15 type:source-location url:https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.min.js urlProvider:network]] map[reflowTime:0.276 source:map[column:52628 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js urlProvider:network]] map[reflowTime:0.133 source:map[column:52686 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js urlProvider:network]] map[reflowTime:0.143 source:map[column:52750 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js urlProvider:network]] map[reflowTime:2.15 source:map[column:51931 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js urlProvider:network]] map[reflowTime:14.272 source:map[column:51909 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js urlProvider:network]] map[reflowTime:0.295 source:map[column:53663 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js urlProvider:network]] map[reflowTime:0.279 source:map[column:55071 line:1 type:source-location url:https://code.jquery.com/jquery-3.6.4.min.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Apiary div#hp-mobile-hero > div.position-relative > div.mobile-hero-image-container > img.img-fluid
uwo.ca/img/homepage/2024/Bees-hp-banner-mobile.jpg4.4 MiB4.3 MiB
div.row > div.col-md-12 > div.card > div.card-header div.row > div.col-md-12 > div.card > div.card-header
uwo.ca/img/homepage/2025/FT-Cards1-2.jpg904.7 KiB748.4 KiB
Sustainability at Western div.slick-list > div.slick-track > div.col > img.img-fluid
/wp-content/uploads/sites/2/2026/04/GreenestEmployer-1024...750.7 KiB713.7 KiB
div.brand-container > div.row > div.col > img.img-fluid div.brand-container > div.row > div.col > img.img-fluid
uwo.ca/img/_test/Dr-Robyn-Klein.jpg606.8 KiB528.6 KiB
div.slick-track > div.col > div.card > div.social-prooff-bg div.slick-track > div.col > div.card > div.social-prooff-bg
uwo.ca/img/home-page/WU_homepage_ourcommunity_nancy.jpg440.0 KiB331.5 KiB
div.row > div.col-md-12 > div.card > div.card-header div.row > div.col-md-12 > div.card > div.card-header
uwo.ca/img/homepage/2025/FT-Cards2v2.jpg312.7 KiB156.5 KiB
Maya Lekhi div.brand-container > div.row > div.col > img.img-fluid
uwo.ca/img/homepage/2025/impact-project/1.png94.5 KiB82.0 KiB
Chris Guglielmo div.brand-container > div.row > div.col > img.img-fluid
uwo.ca/img/homepage/2025/impact-project/2.png94.3 KiB81.8 KiB
Western News Featured Image for Western Awards for Excellence in Teaching celeb… div.slick-list > div.slick-track > div.col > img.img-fluid
/wp-content/uploads/sites/2/2026/04/041626_Teach_Awrds_26...112.8 KiB75.8 KiB
div.slick-track > div.col > div.card > div.social-prooff-bg div.slick-track > div.col > div.card > div.social-prooff-bg
uwo.ca/img/homepage/2025/testimonial%20block-artemis.jpg156.5 KiB48.0 KiB
Caroline and Patrick Whippey div.slick-list > div.slick-track > div.col > img.img-fluid
/wp-content/uploads/sites/2/2026/04/260415_Caroline_Patri...78.6 KiB46.1 KiB
Rami Hamati div.slick-list > div.slick-track > div.col > img.img-fluid
/wp-content/uploads/sites/2/2026/04/2026_PostDoc_RamiHama...75.3 KiB44.2 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:924.903 label:Time to first byte subpart:timeToFirstByte] map[duration:11.474 label:Resource load delay subpart:resourceLoadDelay] map[duration:4736.023 label:Resource load duration subpart:resourceLoadDuration] map[duration:24.328 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: Apiary
path: 1,HTML,1,BODY,7,DIV,6,MAIN,0,DIV,2,DIV,0,DIV,0,DIV,0,IMG
selector: div#hp-mobile-hero > div.position-relative > div.mobile-hero-image-container > img.img-fluid
snippet: <img alt="Apiary" class="img-fluid bnr-mob hero-img" src="img/homepage/2024/Bees-hp-banner-mobile.jpg">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: Apiary
path: 1,HTML,1,BODY,7,DIV,6,MAIN,0,DIV,2,DIV,0,DIV,0,DIV,0,IMG
selector: div#hp-mobile-hero > div.position-relative > div.mobile-hero-image-container > img.img-fluid
snippet: <img alt="Apiary" class="img-fluid bnr-mob hero-img" src="img/homepage/2024/Bees-hp-banner-mobile.jpg">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
uwo.ca/http/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/styles.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Bold.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Book.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Medium.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/slick-theme.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/slick.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/Tiempos.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/ribbon.svghttp/1.1
www.uwo.ca/web_standards/2025-global/assets/img/logos/d-western-logo.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/search.svghttp/1.1
uwo.ca/img/homepage/2024/Bees-hp-banner-mobile.jpghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/css/orbit.csshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/js/orbit-interactive.jshttp/1.1
uwo.ca/img/homepage/2025/impact-project/1.pnghttp/1.1
uwo.ca/img/homepage/2025/impact-project/2.pnghttp/1.1
uwo.ca/img/homepage/2025/impact-project/3.pnghttp/1.1
uwo.ca/img/homepage/2025/impact-project/4.pnghttp/1.1
uwo.ca/img/_test/Dr-Robyn-Klein.jpghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/Icon-Close.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/facebook-f.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/instagram.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/linkedin-in.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/youtube.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/tiktok.svghttp/1.1
www.uwo.ca/web_standards/2025-global/assets/img/icons/bluesky.svghttp/1.1
www.uwo.ca/web_standards/2025-global/assets/img/icons/threads.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/logos/u15-logo.svghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/logos/mustangs-logo.svghttp/1.1
/web_standards/2025-global/assets/img/logos/allin-lockup-...http/1.1
www.uwo.ca/web_standards/2023-hp/assets/js/bs-init.jshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/js/slick.min.jshttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/js/brand-2023.jshttp/1.1
uwo.ca/img/homepage/2026/EarthDay_Banner_V3_Text_left.mp4http/1.1
www.communications.uwo.ca/_all-in-videos/default.mp4http/1.1
www.communications.uwo.ca/_all-in-videos/pillar-2.mp4http/1.1
www.communications.uwo.ca/_all-in-videos/pillar-3.mp4http/1.1
www.communications.uwo.ca/_all-in-videos/pillar-4.mp4http/1.1
www.communications.uwo.ca/_all-in-videos/pillar-1.mp4http/1.1
www.communications.uwo.ca/_all-in-videos/pillar-5.mp4http/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/icons/brand-hamburger.svghttp/1.1
uwo.ca/img/homepage/2025/FT-Cards1-2.jpghttp/1.1
uwo.ca/img/homepage/2025/FT-Cards2v2.jpghttp/1.1
uwo.ca/img/homepage/2024/content-apr/Research6.jpghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/fonts/Benton%20Sans%20Medium.woff2http/1.1
www.uwo.ca/web_standards/2023-hp/assets/fonts/Benton%20Sans%20Book.woff2http/1.1
www.uwo.ca/web_standards/2023-hp/assets/fonts/Benton%20Sans%20Bold.woff2http/1.1
www.uwo.ca/web_standards/2025-global/assets/fonts/TiemposHeadline-Regular.otfhttp/1.1
uwo.ca/img/home-page/WU_homepage_ourcommunity_nancy.jpghttp/1.1
uwo.ca/img/homepage/2025/testimonial%20block-artemis.jpghttp/1.1
/img/homepage/2024/content-nov/Our_Community_Homepage_Upd...http/1.1
uwo.ca/img/_test/experience-bg1.jpghttp/1.1
www.uwo.ca/web_standards/2023-hp/assets/img/assets/ajax-loader.gifhttp/1.1
/web_standards/2023-hp/assets/img/assets/icons/scrollbar-...http/1.1
/web_standards/2023-hp/assets/img/assets/icons/scrollbar-...http/1.1
uwo.ca/favicon.icohttp/1.1

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
www.uwo.ca/web_standards/2023-hp/assets/css/Tiempos.css694 B1.1 s
www.uwo.ca/web_standards/2023-hp/assets/css/slick.css1.1 KiB1.1 s
www.uwo.ca/web_standards/2023-hp/assets/css/slick-theme.css1.3 KiB1.1 s
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Medium.css704 B1.1 s
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Book.css701 B1.1 s
www.uwo.ca/web_standards/2023-hp/assets/css/BentonSans%20Bold.css701 B1.1 s
www.uwo.ca/web_standards/2023-hp/assets/css/styles.css18.1 KiB1.6 s
cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css3.8 KiB988 ms
cdnjs.cloudflare.com/ajax/libs/aos/2.3.4/aos.css2.1 KiB817 ms
cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css32.6 KiB901 ms
cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css13.5 KiB150 ms

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 520 ms 54.6 KiB
URLTransfer SizeEst Savings
cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css32.5 KiB29.7 KiB
cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css13.1 KiB13.1 KiB
www.uwo.ca/web_standards/2023-hp/assets/css/styles.css17.5 KiB11.8 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: 4.2 s 650.2 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtm.js?id=GTM-NSQ7S5167.2 KiB73.2 KiB
www.googletagmanager.com/gtag/js?id=G-7JYBYP2XMQ&cx=c&gtm=4e64h1173.5 KiB70.8 KiB
www.googletagmanager.com/gtag/destination?id=AW-829708219&cx=c&gtm=4e64k0h2133.9 KiB67.1 KiB
www.googletagmanager.com/gtag/js?id=G-VYE7W4Q940&cx=c&gtm=4e64k0h2156.2 KiB65.9 KiB
www.googletagmanager.com/gtag/js?id=G-VGHVYS95BH&cx=c&gtm=4e64h1157.9 KiB65.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-PZZF7K23149.8 KiB62.6 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js120.9 KiB62.5 KiB
www.googletagmanager.com/gtag/js?id=AW-706260770&cx=c&gtm=4e64h1144.5 KiB55.5 KiB
ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.min.js49.5 KiB45.1 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB34.1 KiB
script.hotjar.com/modules.6a0f3932cb1341a35c18.js56.1 KiB27.7 KiB
cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js27.3 KiB20.5 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable2.3 s87 ms0.0 ms
uwo.ca/618 ms8.0 ms3.4 ms
script.hotjar.com/modules.6a0f3932cb1341a35c18.js498 ms451 ms22 ms
www.googletagmanager.com/gtm.js?id=GTM-NSQ7S5404 ms325 ms57 ms
www.redditstatic.com/ads/pixel.js400 ms366 ms5.3 ms
www.googletagmanager.com/gtag/js?id=AW-706260770&cx=c&gtm=4e64h1292 ms249 ms33 ms
www.googletagmanager.com/gtag/js?id=G-7JYBYP2XMQ&cx=c&gtm=4e64h1263 ms218 ms43 ms
code.jquery.com/jquery-3.6.4.min.js261 ms168 ms6.5 ms
www.googletagmanager.com/gtm.js?id=GTM-PZZF7K23250 ms211 ms36 ms
www.googletagmanager.com/gtag/js?id=G-VGHVYS95BH&cx=c&gtm=4e64h1247 ms175 ms35 ms
www.googletagmanager.com/gtag/js?id=G-VYE7W4Q940&cx=c&gtm=4e64k0h2215 ms177 ms36 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js202 ms163 ms36 ms
connect.facebook.net/en_US/fbevents.js144 ms102 ms35 ms
www.googletagmanager.com/gtag/destination?id=AW-829708219&cx=c&gtm=4e64k0h2131 ms104 ms26 ms
/signals/config/1115330005283642?v=2.9.303&r=stable&domai...104 ms84 ms19 ms
sc-static.net/scevent.min.js104 ms91 ms4.7 ms
static.ads-twitter.com/uwt.js54 ms49 ms3.1 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation3.2 s
Other2.5 s
Script Parsing & Compilation460 ms
Style & Layout393 ms
Rendering127 ms
Parse HTML & CSS93 ms
Garbage Collection34 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages with WebSocket cannot enter back/forward cache.Pending browser support

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 3.2 KiB
URLTransfer SizeEst Savings
www.uwo.ca/web_standards/2023-hp/assets/css/styles.css18.1 KiB3.2 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 9.4 KiB
URLTransfer SizeEst Savings
www.uwo.ca/web_standards/2023-hp/assets/js/brand-2023.js18.2 KiB7.1 KiB
www.uwo.ca/web_standards/2023-hp/assets/js/orbit-interactive.js7.5 KiB2.3 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.communications.uwo.ca/_all-in-videos/default.mp47.4 MiB
uwo.ca/img/homepage/2026/EarthDay_Banner_V3_Text_left.mp45.3 MiB
uwo.ca/img/homepage/2024/Bees-hp-banner-mobile.jpg4.4 MiB
www.communications.uwo.ca/_all-in-videos/pillar-4.mp43.6 MiB
www.communications.uwo.ca/_all-in-videos/pillar-5.mp43.4 MiB
www.communications.uwo.ca/_all-in-videos/pillar-1.mp43.4 MiB
www.communications.uwo.ca/_all-in-videos/pillar-3.mp43.4 MiB
www.communications.uwo.ca/_all-in-videos/pillar-2.mp41.9 MiB
uwo.ca/img/homepage/2025/FT-Cards1-2.jpg905.0 KiB
/wp-content/uploads/sites/2/2026/04/GreenestEmployer-1024...751.9 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
Apiary div#hp-mobile-hero > div.position-relative > div.mobile-hero-image-container > img.img-fluid
uwo.ca/img/homepage/2024/Bees-hp-banner-mobile.jpg
div.brand-container > div.row > div.col > img.img-fluid div.brand-container > div.row > div.col > img.img-fluid
uwo.ca/img/_test/Dr-Robyn-Klein.jpg
Maya Lekhi div.brand-container > div.row > div.col > img.img-fluid
uwo.ca/img/homepage/2025/impact-project/1.png
Chris Guglielmo div.brand-container > div.row > div.col > img.img-fluid
uwo.ca/img/homepage/2025/impact-project/2.png
Western University div#footer-legal > div > a > img.footer-allin-logo
/web_standards/2025-global/assets/img/logos/allin-lockup-...

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

●Layout shift culprits
●Document request latency
●Optimize DOM size
●Font display
●Optimize viewport for mobile
●User Timing marks and measures 21 user timings
●Avoid long main-thread tasks 19 long tasks found
●Network Requests
●Network Round Trip Times 110 ms
●Server Backend Latencies 210 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 120 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○Avoid non-composited animations
100

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.

○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
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with 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.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○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

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
AttributionReporting
www.googletagmanager.com/gtag/js?id=AW-706260770&cx=c&gtm=4e64h1 line 577, col 244
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
92

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.uwo.ca/research/Learn More
news.westernu.ca/2026/04/western-canadas-greenest-employers/Read More
www.theimpactproject.ca/Learn More
welcome.uwo.ca/what-is-western-like/experience/margaret-gleed.htmlRead More
welcome.uwo.ca/what-is-western-like/experience/nancy-huang.htmlRead More
welcome.uwo.ca/what-is-western-like/student-stories/artemis-cherkaev.htmlRead More
welcome.uwo.ca/what-is-western-like/experience/margaret-gleed.htmlRead More
welcome.uwo.ca/what-is-western-like/experience/nancy-huang.htmlRead More
welcome.uwo.ca/what-is-western-like/student-stories/artemis-cherkaev.htmlRead More
welcome.uwo.ca/what-is-western-like/experience/margaret-gleed.htmlRead More
magazine.westernu.ca/dr-robyn-klein/Read More

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
●Document has a meta description
●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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