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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.

33

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.uvic.ca/_assets/images/cards/cards/onc-arctic-acoustics_1064x599.webp0.0 ms145.8 KiB
www.uvic.ca/_assets/images/cards/storygrid/edmonsond_520x346.webp0.0 ms93.3 KiB
www.uvic.ca/_assets/images/cards/cards/octoberrecruitment2025-g.webp0.0 ms88.3 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
www.uvic.ca/_assets/images/cards/storygrid/trees_0710241001_520x346.webp0.0 ms85.3 KiB
/_assets/images/cards/storygrid/heatwave_credit-cdg-harle...0.0 ms68.5 KiB
www.uvic.ca/_assets/images/cards/storygrid/jason-colby_520x346.webp0.0 ms64.0 KiB
www.uvic.ca/_assets/images/cards/cards/octoberrecruitment2025-ug.webp0.0 ms60.9 KiB
www.uvic.ca/_assets/images/cards/cards/youssef-ghada-1064x599-1.webp0.0 ms52.8 KiB
/signals/config/1361514148127772?v=2.9.303&r=stable&domai...1200.0 s46.7 KiB
www.uvic.ca/_assets/images/landing-heros/acet-fnus-3600x2025-1200x675.webp0.0 ms39.0 KiB
www.uvic.ca/_assets/images/cards/storygrid/afzal-suleman_520x346.webp0.0 ms32.4 KiB
/_assets/images/cards/storygrid/kaitlyn-singh-health-stor...0.0 ms31.1 KiB
www.uvic.ca/_assets/images/cards/storygrid/homayoun-najjaran_520x346.webp0.0 ms23.1 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
www.uvic.ca/_assets/images/cards/storygrid/tremblay_520x346.webp0.0 ms18.6 KiB
tags.srv.stackadapt.com/events.js5.0 s7.7 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
kit.fontawesome.com/6353bd3065.js60.0 s5.7 KiB
w.soundcloud.com/player/api.js300.0 s3.5 KiB
/collect?v=2&fmt=js&pid=805873&time=1776810540015&url=htt...0.0 ms691 B
/rp.gif?ts=1776810540075&id=t2_a2uus&event=PageVisit&m.va...0.0 ms666 B
/config/ca/daaff75c-b2d5-4f95-88a8-dad194ac762f.js?v=3.55...0.0 ms471 B
siteimproveanalytics.com/js/siteanalyze_10570.js86400.0 s804 B
/rp.gif?ts=1776810540078&id=a2_fvi1c9fheaal&event=PageVis...0.0 ms76 B
/tr/?id=1361514148127772&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms16 B
/tr/?id=1361514148127772&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms16 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:0.16207899999999997] map[node:map[boundingRect:map[bottom:852 height:158 left:16 right:396 top:695 width:380] lhId:page-15-DIV nodeLabel:Noise levels for marine life Researchers explore sound impacts of melting Arcti… path:1,HTML,1,BODY,1,MAIN,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,1,DIV selector:div.row > div.col > div.card > div.card-body snippet:<div class="card-body"> type:node] score:0.157328] map[node:map[boundingRect:map[bottom:749 height:235 left:12 right:400 top:514 width:388] lhId:page-17-P nodeLabel:This website stores cookies on your computer. These cookies are used to collect… path:1,HTML,1,BODY,0,HEADER,3,DIV,0,SECTION,0,DIV,0,P selector:div > section#cookies-banner > div.container > p#cookies-description snippet:<p id="cookies-description"> type:node] score:0.00354 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:416 height:232 left:0 right:412 top:184 width:412] lhId:page-10-IMG nodeLabel:Two people in silhouette, one wearing a hard hat, stand indoors beneath a glass… path:1,HTML,1,BODY,1,MAIN,0,DIV,0,PICTURE,7,IMG selector:main#uv-main > div.uv-jumbotron > picture > img.uv-jumbotron__img snippet:<img src="https://www.uvic.ca/_assets/images/landing-heros/acet-fnus-3600x2025-1200x…" alt="Two people in silhouette, one wearing a hard hat, stand indoors beneath a …" class="uv-jumbotron__img" width="3600" height="2025"> type:node]] map[cause:Web font extra:map[type:url value:https://www.uvic.ca/assets/core-4-1/fonts/opensans-semibold.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:749 height:235 left:12 right:400 top:514 width:388] lhId:page-17-P nodeLabel:This website stores cookies on your computer. These cookies are used to collect… path:1,HTML,1,BODY,0,HEADER,3,DIV,0,SECTION,0,DIV,0,P selector:div > section#cookies-banner > div.container > p#cookies-description snippet:<p id="cookies-description"> type:node] score:0.000803 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-light-300-1.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-1.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-0.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-brands-400-0.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-0.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-12.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-light-300-13.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-12.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-21.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-2.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-16.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-13.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-1.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-brands-400-2.woff2]] map[cause:Web font extra:map[type:url value:https://ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-22.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:112 height:40 left:184 right:265 top:72 width:81] lhId:page-20-A nodeLabel: Sign in path:1,HTML,1,BODY,0,HEADER,5,DIV,1,DIV,0,DIV,0,DIV,1,DIV,2,A selector:div.container > div.glbl__row > div.col-auto > a.btn snippet:<a href="/cas/login?service=https%3A%2F%2Fwww.uvic.ca%2Ftools%2Findex.php" aria-label="Sign in to UVic button" class="btn btn-sm btn-outline-primary glbl__btn glbl__btn--unauth"> type:node] score:0.000408]]

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
www.uvic.ca/assets/core-4-1/fonts/poppins-latin.woff2145 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-0.woff250 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-12.woff245 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-16.woff245 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-brands-400-2.woff245 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-1.woff240 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-22.woff240 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-13.woff235 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-brands-400-0.woff230 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-21.woff230 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-0.woff225 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-regular-400-12.woff225 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-2.woff225 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-light-300-13.woff220 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-light-300-1.woff215 ms
ka-p.fontawesome.com/releases/v6.7.2/webfonts/pro-fa-solid-900-1.woff215 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:3.808 source:map[column:94462 line:0 type:source-location url:https://www.uvic.ca/assets/core-4-1/js/scripts.1753207015.js urlProvider:network]] map[reflowTime:31.162 source:map[type:text value:[unattributed]]]]

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
Ocean Networks Canada engineers Albert Ruskey and Caleb Magee install an acoust… div.card > div.card-head > picture > img.card-img
www.uvic.ca/_assets/images/cards/cards/onc-arctic-acoustics_1064x599.webp145.2 KiB104.7 KiB
Geologist Stacey Edmonsond examines a rock face. div.card > div.card-wrapper > picture > img.card-img-top
www.uvic.ca/_assets/images/cards/storygrid/edmonsond_520x346.webp92.7 KiB82.0 KiB
Sunlight shines through trees in a forest. div.card > div.card-wrapper > picture > img.card-img-top
www.uvic.ca/_assets/images/cards/storygrid/trees_0710241001_520x346.webp84.7 KiB74.0 KiB
Mussels baking in the sun during the 2021 heatwave. div.card > div.card-wrapper > picture > img.card-img-top
/_assets/images/cards/storygrid/heatwave_credit-cdg-harle...67.9 KiB57.2 KiB
A student rappels down a waterfall. div.col > div.card > picture > img.card-img-top
www.uvic.ca/_assets/images/cards/cards/octoberrecruitment2025-g.webp87.7 KiB53.8 KiB
Jason Colby div.card > div.card-wrapper > picture > img.card-img-top
www.uvic.ca/_assets/images/cards/storygrid/jason-colby_520x346.webp63.4 KiB52.7 KiB
A student works with lab equipment in a chemistry lab. div.col > div.card > picture > img.card-img-top
www.uvic.ca/_assets/images/cards/cards/octoberrecruitment2025-ug.webp60.3 KiB37.0 KiB
Ghada Youssef is in a brightly-lit room with film lights. div.card > div.card-head > picture > img.card-img
www.uvic.ca/_assets/images/cards/cards/youssef-ghada-1064x599-1.webp52.3 KiB31.9 KiB
Close up shot outside of a person's hands typing on a tablet and signing in to … div.card > div.card-head > picture > img.card-img
www.uvic.ca/_assets/images/cards/cards/admissions.jpg47.2 KiB28.8 KiB
close up of cedar branches div.card > div.card--overlay__cover > picture > img.card--overlay__img
www.uvic.ca/_assets/images/cards/overlay/territory-3600-1450-1200x483.jpg53.8 KiB25.4 KiB
Two people in silhouette, one wearing a hard hat, stand indoors beneath a glass… main#uv-main > div.uv-jumbotron > picture > img.uv-jumbotron__img
www.uvic.ca/_assets/images/landing-heros/acet-fnus-3600x2025-1200x675.webp38.4 KiB24.5 KiB
Afzal Suleman. div.card > div.card-wrapper > picture > img.card-img-top
www.uvic.ca/_assets/images/cards/storygrid/afzal-suleman_520x346.webp31.8 KiB21.1 KiB
Kaitlyn Singh. div.card > div.card-wrapper > picture > img.card-img-top
/_assets/images/cards/storygrid/kaitlyn-singh-health-stor...30.6 KiB19.8 KiB
Homayoun Najjaran div.card > div.card-wrapper > picture > img.card-img-top
www.uvic.ca/_assets/images/cards/storygrid/homayoun-najjaran_520x346.webp22.5 KiB14.3 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-14-DIV
nodeLabel: Equitable clean energy Read the story
path: 1,HTML,1,BODY,1,MAIN,0,DIV
selector: body.uv-landing > main#uv-main > div.uv-jumbotron
snippet: <div class="uv-jumbotron bg--swoops">

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
www.uvic.ca/http/1.1
www.uvic.ca/assets/core-4-1/css/core.1775167365.csshttp/1.1
www.uvic.ca/assets/core-4-1/css/animation/aos.1748380476.csshttp/1.1
www.uvic.ca/_assets/css/site-styles.1776802980.csshttp/1.1
www.uvic.ca/assets/core-4-0/img/uvic-wordmark-colour.svghttp/1.1
www.uvic.ca/_assets/images/landing-heros/acet-fnus-3600x2025-1200x675.webphttp/1.1
www.uvic.ca/_assets/images/cards/cards/onc-arctic-acoustics_1064x599.webphttp/1.1
www.uvic.ca/_assets/images/cards/cards/admissions.jpghttp/1.1
www.uvic.ca/_assets/images/cards/cards/youssef-ghada-1064x599-1.webphttp/1.1
www.uvic.ca/assets/core-4-1/img/the-impact-rankings.svghttp/1.1
www.uvic.ca/assets/core-4-0/img/shield-horz-white.svghttp/1.1
www.uvic.ca/assets/core-4-1/js/scripts.1753207015.jshttp/1.1
www.uvic.ca/assets/core-4-1/js/animation/aos.1748380477.jshttp/1.1
www.uvic.ca/assets/core-4-1/img/swoops-bg.svghttp/1.1
www.uvic.ca/assets/core-4-1/img/chevron-bg.svghttp/1.1
www.uvic.ca/assets/core-4-1/fonts/opensans-semibold.woff2http/1.1
www.uvic.ca/assets/core-4-1/fonts/poppins-latin.woff2http/1.1
www.uvic.ca/assets/core-4-1/fonts/opensans.woff2http/1.1
www.uvic.ca/assets/core-4-1/fonts/opensans-extrabold.woff2http/1.1
www.uvic.ca/_assets/images/cards/cards/octoberrecruitment2025-ug.webphttp/1.1
www.uvic.ca/_assets/images/cards/cards/octoberrecruitment2025-g.webphttp/1.1
www.uvic.ca/_assets/images/cards/overlay/territory-3600-1450-1200x483.jpghttp/1.1
www.uvic.ca/_assets/images/cards/storygrid/trees_0710241001_520x346.webphttp/1.1
/_assets/images/cards/storygrid/kaitlyn-singh-health-stor...http/1.1
www.uvic.ca/_assets/images/cards/storygrid/afzal-suleman_520x346.webphttp/1.1
www.uvic.ca/_assets/images/cards/storygrid/edmonsond_520x346.webphttp/1.1
www.uvic.ca/_assets/images/cards/storygrid/homayoun-najjaran_520x346.webphttp/1.1
www.uvic.ca/_assets/images/cards/storygrid/jason-colby_520x346.webphttp/1.1
/_assets/images/cards/storygrid/heatwave_credit-cdg-harle...http/1.1
www.uvic.ca/_assets/images/cards/storygrid/tremblay_520x346.webphttp/1.1
www.uvic.ca/assets/core-4-1/img/favicon-32.pnghttp/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.uvic.ca/_assets/css/site-styles.1776802980.css1.9 KiB634 ms
www.uvic.ca/assets/core-4-1/css/animation/aos.1748380476.css3.2 KiB634 ms
www.uvic.ca/assets/core-4-1/css/core.1775167365.css45.3 KiB804 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: 1.2 s
URLTime Spent
uvic.ca/1.2 s
www.uvic.ca/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
Noise levels for marine life Researchers explore sound impacts of melting Arcti… div.row > div.col > div.card > div.card-body
0.157
This website stores cookies on your computer. These cookies are used to collect… div > section#cookies-banner > div.container > p#cookies-description
0.004
This website stores cookies on your computer. These cookies are used to collect… div > section#cookies-banner > div.container > p#cookies-description
0.001
Sign in div.container > div.glbl__row > div.col-auto > a.btn
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

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: 150 ms 154.2 KiB
URLTransfer SizeEst Savings
/*! * Font Awesome Pro 6.7.2 by @fontawesome - https://fontawesome.com * License - https://fontaw…102.9 KiB102.1 KiB
www.uvic.ca/assets/core-4-1/css/core.1775167365.css44.5 KiB40.7 KiB
/*! * Font Awesome Pro 6.7.2 by @fontawesome - https://fontawesome.com * License - https://fontaw…11.4 KiB11.4 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: 300 ms 432.8 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-M6GDR2DPK1&cx=c&gtm=4e64h1171.8 KiB69.0 KiB
www.googletagmanager.com/gtag/js?id=G-S3BQ5P9335&cx=c&gtm=4e64h1172.2 KiB67.6 KiB
www.googletagmanager.com/gtag/js?id=G-RFHYGQWVYB&cx=c&gtm=4e64h1175.1 KiB64.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-KPZ6L3G164.6 KiB61.1 KiB
www.googletagmanager.com/gtag/js?id=AW-16599159446&cx=c&gtm=4e64h1146.3 KiB55.8 KiB
www.googletagmanager.com/gtag/js?id=AW-988751457&cx=c&gtm=4e64h1146.5 KiB54.5 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB32.7 KiB
www.uvic.ca/assets/core-4-1/js/scripts.1753207015.js41.6 KiB27.9 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
www.uvic.ca/1.4 s24 ms2.3 ms
Unattributable1.3 s135 ms0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-KPZ6L3G802 ms669 ms90 ms
www.googletagmanager.com/gtag/js?id=G-RFHYGQWVYB&cx=c&gtm=4e64h1605 ms508 ms91 ms
www.googletagmanager.com/gtag/js?id=G-M6GDR2DPK1&cx=c&gtm=4e64h1576 ms391 ms87 ms
www.googletagmanager.com/gtag/js?id=AW-988751457&cx=c&gtm=4e64h1497 ms362 ms132 ms
www.googletagmanager.com/gtag/js?id=G-S3BQ5P9335&cx=c&gtm=4e64h1468 ms378 ms86 ms
www.googletagmanager.com/gtag/js?id=AW-16599159446&cx=c&gtm=4e64h1449 ms373 ms72 ms
www.uvic.ca/assets/core-4-1/js/scripts.1753207015.js270 ms214 ms28 ms
sc-static.net/scevent.min.js269 ms231 ms10 ms
connect.facebook.net/en_US/fbevents.js242 ms181 ms58 ms
/signals/config/1361514148127772?v=2.9.303&r=stable&domai...232 ms198 ms31 ms
snap.licdn.com/li.lms-analytics/insight.min.js201 ms135 ms59 ms
tags.srv.stackadapt.com/events.js155 ms66 ms5.2 ms
www.redditstatic.com/ads/pixel.js85 ms68 ms12 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 Evaluation4.0 s
Other1.3 s
Style & Layout1.1 s
Script Parsing & Compilation794 ms
Rendering274 ms
Garbage Collection181 ms
Parse HTML & CSS65 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 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

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.googletagmanager.com/gtag/js?id=G-RFHYGQWVYB&cx=c&gtm=4e64h1175.2 KiB
www.googletagmanager.com/gtag/js?id=G-S3BQ5P9335&cx=c&gtm=4e64h1172.3 KiB
www.googletagmanager.com/gtag/js?id=G-M6GDR2DPK1&cx=c&gtm=4e64h1171.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-KPZ6L3G165.0 KiB
www.googletagmanager.com/gtag/js?id=AW-988751457&cx=c&gtm=4e64h1146.6 KiB
www.googletagmanager.com/gtag/js?id=AW-16599159446&cx=c&gtm=4e64h1146.3 KiB
www.uvic.ca/_assets/images/cards/cards/onc-arctic-acoustics_1064x599.webp145.8 KiB
connect.facebook.net/en_US/fbevents.js96.6 KiB
www.uvic.ca/_assets/images/cards/storygrid/edmonsond_520x346.webp93.3 KiB
www.uvic.ca/_assets/images/cards/cards/octoberrecruitment2025-g.webp88.3 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
Ocean Networks Canada engineers Albert Ruskey and Caleb Magee install an acoust… div.card > div.card-head > picture > img.card-img
www.uvic.ca/_assets/images/cards/cards/onc-arctic-acoustics_1064x599.webp
Close up shot outside of a person's hands typing on a tablet and signing in to … div.card > div.card-head > picture > img.card-img
www.uvic.ca/_assets/images/cards/cards/admissions.jpg
Ghada Youssef is in a brightly-lit room with film lights. div.card > div.card-head > picture > img.card-img
www.uvic.ca/_assets/images/cards/cards/youssef-ghada-1064x599-1.webp

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

●Optimize DOM size
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 28 user timings
●Avoid long main-thread tasks 20 long tasks found
●Network Requests
●Network Round Trip Times 130 ms
●Server Backend Latencies 170 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 140 ms
○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
●`[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 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
●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
●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 an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○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.
○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

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
snap.licdn.com/li.lms-analytics/insight.min.js
●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
100

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.

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

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