Skip to content
https://westjet.com

Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

37

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.westjet.com/profile-app-widgets/wjProfileAppsWidgets.vendor.20260323.2.js415.0 s699.1 KiB
www.westjet.com/assets/wj-web/fonts/noto/NotoSans-Medium.woff11.0 s169.6 KiB
www.westjet.com/assets/wj-web/fonts/noto/NotoSans-Light.woff23.0 s169.2 KiB
www.westjet.com/assets/wj-web/fonts/noto/NotoSans-Regular.woff115.0 s167.6 KiB
www.westjet.com/assets/wj-web/fonts/noto/NotoSans-SemiBold.woff229.0 s169.4 KiB
/resources/js/wj_common.js?seed=AIB1X5OdAQAAPha_2l2orAjxc...3284.0 s192.5 KiB
www.westjet.com/web-data/dtm?app=com1.0 s109.8 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.4 KiB
www.westjet.com/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23600.0 s58.6 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/img...86400.0 s131.0 KiB
/content/dam/westjet/images/travel/people/250213-women-ov...71748.0 s117.2 KiB
/signals/config/523389178063532?v=2.9.298&r=stable&domain...1200.0 s46.9 KiB
www.westjet.com/content/dam/westjet/fonts/reimagine/fonts/reimagine.woff2?d9miqe173.0 s40.3 KiB
www.westjet.com/booking-widget/wjWidgets.css5968.0 s45.8 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all.min.5bf8afd66...1448454.0 s316.4 KiB
/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23/...600.0 s32.7 KiB
/content/dam/westjet/images/travel/people/240620-WanderOf...42048.0 s51.0 KiB
www.westjet.com/components/js/calendar.js112.0 s26.1 KiB
/content/dam/westjet/images/travel/people/240916-NWT-Nort...50467.0 s50.3 KiB
dynamic.criteo.com/js/ld/ld.js?a=10217710800.0 s24.7 KiB
/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23/...600.0 s18.4 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s41.4 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s40.4 KiB
/etc.clientlibs/census/clientlibs/census-libraries/resour...86400.0 s40.0 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s32.7 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s32.5 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s31.8 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s30.9 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s30.5 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s27.1 KiB
scripts.clarity.ms/0.8.60-beta/clarity.js86400.0 s25.0 KiB
/etc.clientlibs/wj/clientlibs/clientlib-head.min.359f8add...1448455.0 s102.3 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all.min.bd9909a65...1448455.0 s90.0 KiB
www.westjet.com/profile-app-widgets/wjProfileAppsWidgets.main.20260323.2.js231.0 s8.3 KiB
/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23/...600.0 s7.0 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...86400.0 s13.3 KiB
/etc/cloudsettings.kernel.js/conf/wj/settings/cloudsettin...1448458.0 s50.4 KiB
/WRSiteInterceptEngine/?Q_ZID=ZN_VQhrgDqReLtOznj3600.0 s4.6 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...604800.0 s35.8 KiB
www.westjet.com/content/dam/westjet/images/branded/app/apple-app-download-en.svg18779.0 s4.8 KiB
www.westjet.com/components/js/jquery-ui.custom.js171.0 s2.8 KiB
s.pinimg.com/ct/lib/main.10d2511a.js1209600.0 s27.6 KiB
/etc.clientlibs/census/clientlibs/census-libraries/resour...86400.0 s6.6 KiB
/etc.clientlibs/wj/clientlibs/clientlib-polyfill/resource...86400.0 s6.5 KiB
www.westjet.com/profile-app-widgets/wjProfileAppsWidgets.SignIn.20260323.2.js183.0 s2.3 KiB
/etc.clientlibs/census/clientlibs/census-libraries/resour...86400.0 s5.1 KiB
www.westjet.com/assets/wj-web/images/2019/reimagine/wj/loader-large.svg114.0 s2.0 KiB
/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERS...604800.0 s18.6 KiB
/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23/...600.0 s2.0 KiB
ct.pinterest.com/static/ct/token_create.js7200.0 s2.2 KiB
s.pinimg.com/ct/core.js7200.0 s2.1 KiB
/profile-app-widgets/wjProfileAppsWidgets.rewardsAccount....183.0 s1.6 KiB
/content/dam/westjet/images/branded/app/android-app-downl...73668.0 s3.6 KiB
/profile-app-widgets/wjProfileAppsWidgets.services-import...183.0 s1.5 KiB
www.westjet.com/assets/wj-web/js/wj_config900.0 s1.5 KiB
/profile-app-widgets/wjProfileAppsWidgets.analytics.use.2...55.0 s1.3 KiB
/etc.clientlibs/core/wcm/components/commons/site/clientli...1.0 s1.2 KiB
rum-static.pingdom.net/pa-5a0d0165bd3729410a7b23c6.js86400.0 s2.9 KiB
www.westjet.com/profile-app-widgets/css/main.20260323.2.css505.0 s1.2 KiB
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/micro.js3600.0 s1.0 KiB
www.westjet.com/assets/wj-web/fonts/noto/noto.css67.0 s815 B
/content/dam/westjet/images/graphics/logos/westjet_rev.sv...64906.0 s1.7 KiB
www.westjet.com/profile-app-widgets/init.js?20260323.2181.0 s712 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RCbdebe6e8b2c84d4...3600.0 s851 B
www.westjet.com/profile-app-widgets/css/SignIn.20260323.2.css419.0 s702 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RC5fd4dc0bd4e545e...3600.0 s823 B
/profile-app-widgets/wjProfileAppsWidgets.url-helper.2026...222.0 s679 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RC56485d009bd64f2...3600.0 s821 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RC74955fc886a3435...3600.0 s799 B
www.westjet.com/components/js/configuration.js18.0 s539 B
/etc.clientlibs/census/clientlibs/census-libraries/resour...86400.0 s1.2 KiB
/content/dam/westjet/images/graphics/logos/maple-leaf_rev...64913.0 s1.1 KiB
/config/com/7a51541b-b480-4d66-b7d9-0dfe8b1bb359.js?v=3.5...0.0 ms473 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RC24e7b8853b0742a...3600.0 s584 B
/etc.clientlibs/census/clientlibs/census-libraries/resour...86400.0 s1.1 KiB
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RCb0d6cf6835264bb...3600.0 s567 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RC87e1c7eb0c514e7...3600.0 s545 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RCe599203c41be405...3600.0 s545 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RC55a45258fd6240a...3600.0 s490 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RC66edcab2f01842e...3600.0 s485 B
/d36a486549b5/ab09809e3f7c/eec5f5eae8dc/RCafeaff218bdb4f3...3600.0 s478 B
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/img...86400.0 s658 B
www.gstatic.com/recaptcha/api2/logo_48.png604800.0 s2.3 KiB
/etc.clientlibs/wj/clientlibs/clientlib-ui-head.min.484d7...1448455.0 s705 B
/tr/?id=523389178063532&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B
/a?id=DC-11665219&v=3&t=t&pid=265673286&gtm=45fe64e1v9181...0.0 ms11 B
/a?id=DC-11665219&v=3&t=t&pid=265673286&gtm=45fe64e1v9181...0.0 ms11 B
/a?id=DC-11665219&v=3&t=t&pid=265673286&gtm=45fe64e1v9181...0.0 ms11 B
/a?id=DC-11665219&v=3&t=t&pid=265673286&gtm=45fe64e1v9181...0.0 ms11 B
/a?id=DC-11665219&v=3&t=t&pid=265673286&gtm=45fe64e1v9181...0.0 ms11 B
/a?id=DC-11665219&v=3&t=t&pid=265673286&gtm=45fe64e1v9181...0.0 ms11 B
/a?id=DC-11665219&v=3&t=t&pid=265673286&gtm=45fe64e1v9181...0.0 ms11 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
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff255 ms
/etc.clientlibs/wj/clientlibs/clientlib-all/resources/fon...10 ms
www.westjet.com/content/dam/westjet/fonts/reimagine/fonts/reimagine.woff2?d9miqe10 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Person overlooking peyto lake div > div.com-origin-targeted-hero-banner__image-container > picture > img.com-origin-targeted-hero-banner__image
/content/dam/westjet/images/travel/people/250213-women-ov...116.8 KiB88.6 KiB
div.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img div.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img
/content/dam/westjet/images/travel/people/240620-WanderOf...50.7 KiB34.0 KiB
div.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img div.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img
/content/dam/westjet/images/travel/people/240916-NWT-Nort...50.0 KiB33.6 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:172.575 label:Time to first byte subpart:timeToFirstByte] map[duration:768.657 label:Resource load delay subpart:resourceLoadDelay] map[duration:10.9 label:Resource load duration subpart:resourceLoadDuration] map[duration:2384.126 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: Person overlooking peyto lake
path: 1,HTML,1,BODY,2,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,PICTURE,2,IMG
selector: div > div.com-origin-targeted-hero-banner__image-container > picture > img.com-origin-targeted-hero-banner__image
snippet: <img class="com-origin-targeted-hero-banner__image" src="/content/dam/westjet/images/travel/people/250213-women-overlooking-peyto-l…" alt="Person overlooking peyto lake">

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: Person overlooking peyto lake
path: 1,HTML,1,BODY,2,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,PICTURE,2,IMG
selector: div > div.com-origin-targeted-hero-banner__image-container > picture > img.com-origin-targeted-hero-banner__image
snippet: <img class="com-origin-targeted-hero-banner__image" src="/content/dam/westjet/images/travel/people/250213-women-overlooking-peyto-l…" alt="Person overlooking peyto lake">

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
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
/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400;1,700...1.7 KiB329 ms
www.westjet.com/resources/js/wj_common.js1.1 KiB
www.westjet.com/assets/wj-web/js/wj_config1.5 KiB
/etc.clientlibs/wj/clientlibs/clientlib-head.min.359f8add...102.3 KiB123 ms
/etc/cloudsettings.kernel.js/conf/wj/settings/cloudsettin...50.4 KiB
www.westjet.com/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca2358.6 KiB82 ms
/etc.clientlibs/wj/clientlibs/clientlib-ui-head.min.484d7...705 B
/etc.clientlibs/wj/clientlibs/clientlib-all.min.bd9909a65...90.0 KiB163 ms
/resources/js/wj_common.js?seed=AIB1X5OdAQAAPha_2l2orAjxc...192.5 KiB163 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: 425 ms
URLTime Spent
westjet.com/203 ms
www.westjet.com/222 ms
www.westjet.com/en-es0.0 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

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

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: 80 ms 86.3 KiB
URLTransfer SizeEst Savings
/etc.clientlibs/wj/clientlibs/clientlib-head.min.359f8add...102.0 KiB53.0 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all.min.5bf8afd66...316.1 KiB33.3 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: 120 ms 307.3 KiB
URLTransfer SizeEst Savings
[data-v-058b2bc7]:root{--text-colour-base-primary: #1c383c;--text-colour-base-primary-reverse: #fff…91.0 KiB90.1 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all.min.bd9909a65...89.8 KiB82.1 KiB
www.westjet.com/booking-widget/wjWidgets.css45.4 KiB43.1 KiB
@keyframes rotate-rt-e1f62070{0%{transform:rotate(-45deg)} …30.9 KiB30.8 KiB
@keyframes rotate-rt-aeff308b{0%{transform:rotate(-45deg)} …30.6 KiB30.6 KiB
@keyframes rotate-rt-aeff308b{0%{transform:rotate(-45deg)} …30.6 KiB30.6 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: 1.1 s 2.0 MiB
URLTransfer SizeEst Savings
/_/mss/boq-cloud-ai-ucs/_/js/k=boq-cloud-ai-ucs.UcsWidget...2.2 MiB706.9 KiB
www.westjet.com/profile-app-widgets/wjProfileAppsWidgets.vendor.20260323.2.js695.3 KiB371.7 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en_gb.js361.7 KiB176.9 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all.min.5bf8afd66...315.8 KiB118.5 KiB
www.googletagmanager.com/gtag/js?id=G-1RRJQCZJMS169.7 KiB113.5 KiB
www.googletagmanager.com/gtag/js?id=G-1RRJQCZJMS&cx=c&gtm=4e64e1169.7 KiB67.8 KiB
www.googletagmanager.com/gtag/js?id=UA-52699607-2&cx=c&gtm=4e64e1115.4 KiB64.1 KiB
www.googletagmanager.com/gtag/js?id=GF-44&cx=c&gtm=4e64e1111.4 KiB63.8 KiB
/etc.clientlibs/wj/clientlibs/clientlib-head.min.359f8add...102.0 KiB63.4 KiB
www.googletagmanager.com/gtag/js?id=DC-11665219&cx=c&gtm=4e64e1129.8 KiB59.8 KiB
www.googletagmanager.com/gtag/js?id=AW-920817551&l=dataLayer137.3 KiB52.6 KiB
connect.facebook.net/en_US/fbevents.js96.3 KiB32.8 KiB
www.westjet.com/web-data/dtm?app=com109.1 KiB32.5 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...35.7 KiB25.2 KiB
/etc.clientlibs/census/clientlibs/census-libraries/resour...39.7 KiB24.1 KiB
www.westjet.com/components/js/calendar.js25.9 KiB23.1 KiB
/etc/cloudsettings.kernel.js/conf/wj/settings/cloudsettin...50.1 KiB20.4 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.westjet.com/en-es1.5 s823 ms2.7 ms
www.westjet.com/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca231.1 s944 ms50 ms
/_/mss/boq-cloud-ai-ucs/_/js/k=boq-cloud-ai-ucs.UcsWidget...741 ms577 ms142 ms
Unattributable497 ms64 ms0.3 ms
/etc.clientlibs/wj/clientlibs/clientlib-all.min.5bf8afd66...85 ms44 ms35 ms
www.westjet.com/web-data/dtm?app=com78 ms67 ms8.1 ms
/resources/js/wj_common.js?seed=AIB1X5OdAQAAPha_2l2orAjxc...69 ms62 ms5.5 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en_gb.js63 ms44 ms17 ms
www.googletagmanager.com/gtag/js?id=G-1RRJQCZJMS&cx=c&gtm=4e64e162 ms51 ms10 ms
/etc/cloudsettings.kernel.js/conf/wj/settings/cloudsettin...58 ms48 ms8.4 ms
www.googletagmanager.com/gtag/js?id=AW-920817551&l=dataLayer56 ms49 ms7.1 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 Evaluation3.4 s
Other872 ms
Script Parsing & Compilation357 ms
Style & Layout159 ms
Garbage Collection153 ms
Rendering59 ms
Parse HTML & CSS34 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
The page has an unload handler in the main frame.Actionable
The page has an unload handler in a sub frame.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
/_/mss/boq-cloud-ai-ucs/_/js/k=boq-cloud-ai-ucs.UcsWidget...2.2 MiB
www.westjet.com/profile-app-widgets/wjProfileAppsWidgets.vendor.20260323.2.js699.1 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en_gb.js362.0 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en_gb.js361.8 KiB
/etc.clientlibs/wj/clientlibs/clientlib-all.min.5bf8afd66...316.4 KiB
www.westjet.com/booking-widget/wjWidgets.umd.min.js308.1 KiB
/resources/js/wj_common.js?seed=AIB1X5OdAQAAPha_2l2orAjxc...192.5 KiB
www.googletagmanager.com/gtag/js?id=G-1RRJQCZJMS&cx=c&gtm=4e64e1169.7 KiB
www.googletagmanager.com/gtag/js?id=G-1RRJQCZJMS169.7 KiB
www.westjet.com/assets/wj-web/fonts/noto/NotoSans-Medium.woff169.6 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.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img div.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img
/content/dam/westjet/images/travel/people/240620-WanderOf...
div.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img div.com-promo-banner__container > div.com-promo-banner__content > div.com-promo-banner__img-container > img.com-promo-banner__img
/content/dam/westjet/images/travel/people/240916-NWT-Nort...
WestJet div.com-header__top-bar > div.com-header__inner-top > a.com-header__logo-background > img.com-header__logo--desktop
/content/dam/westjet/images/graphics/logos/westjet_rev.sv...
Download on the App Store div.com-footer____mobile_app > div.com-footer__featured-link > a > img.com-footer__featured-link-image
www.westjet.com/content/dam/westjet/images/branded/app/apple-app-download-en.svg
Get it on Google Play div.com-footer____mobile_app > div.com-footer__featured-link > a > img.com-footer__featured-link-image
/content/dam/westjet/images/branded/app/android-app-downl...

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

●Layout shift culprits
●Optimize DOM size
●Forced reflow
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 11 user timings
●Avoid long main-thread tasks 7 long tasks found
●Avoid non-composited animations 3 animated elements found
●Network Requests
●Network Round Trip Times 100 ms
●Server Backend Latencies 710 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 120 ms
○INP breakdown
○Avoid large layout shifts
98

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.

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.no-touch html.no-touch

These items highlight common accessibility best practices.

○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
●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
●`[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.
●`[lang]` attributes have a valid value
●Heading elements appear in a sequentially-descending order
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
●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 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
○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.
○`<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.
○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
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
www.westjet.com/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23 line 23, col 71
AttributionReporting
www.westjet.com/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23 line 34, col 199
Unload event listeners are deprecated and will be removed.
www.westjet.com/resources/5e0aeb0b341dd3fba5a51673d01b64cd40cf654adca23 line 140, col 127

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
www.westjet.com/profile-app-widgets/wjProfileAppsWidgets.vendor.20260323.2.js
/etc.clientlibs/wj/clientlibs/clientlib-all.min.5bf8afd66...
s.pinimg.com/ct/lib/main.10d2511a.jss.pinimg.com/ct/lib/main.10d2511a.js.map
s.pinimg.com/ct/core.jss.pinimg.com/ct/core.js.map
ct.pinterest.com/static/ct/token_create.jsct.pinterest.com/static/ct/token_create.js.map
●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 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

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
/en-ca/news/2025/westjet-provides-further-update-on-june-...here

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#flex-container > div.advisory-desktop > div.com-advisory-notice__links > a.wj-link
div#flex-container > div.advisory-desktop > div.com-advisory-notice__links > a.wj-link
div#flex-container > div.advisory-desktop > div.com-advisory-notice__links > a.wj-link div#flex-container > div.advisory-desktop > div.com-advisory-notice__links > a.wj-link
div#flex-container > div.advisory-desktop > div.com-advisory-notice__links > a.wj-link div#flex-container > div.advisory-desktop > div.com-advisory-notice__links > a.wj-link

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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

Send Feedback