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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

38

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.

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:0.114056] map[node:map[boundingRect:map[bottom:1991 height:550 left:0 right:1350 top:1441 width:1350] lhId:page-1-DIV nodeLabel:For travel pros KAYAK.ai BETA Get travel questions answered Best Time to Travel… path:1,HTML,1,BODY,1,DIV,0,DIV,1,DIV,2,DIV,0,MAIN,2,DIV,1,DIV,2,DIV selector:main.WKSW > div.Seuf > div.q9wv > div snippet:<div> type:node] score:0.060482] map[node:map[boundingRect:map[bottom:1991 height:550 left:0 right:1350 top:1441 width:1350] lhId:page-1-DIV nodeLabel:For travel pros KAYAK.ai BETA Get travel questions answered Best Time to Travel… path:1,HTML,1,BODY,1,DIV,0,DIV,1,DIV,2,DIV,0,MAIN,2,DIV,1,DIV,2,DIV selector:main.WKSW > div.Seuf > div.q9wv > div snippet:<div> type:node] score:0.05331] map[score:0.000264]]

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:35.278 source:map[column:1953 line:25 type:source-location url:https://content.r9cdn.net/frontier/assets/CcD8mPq4Km.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:425.803 source:map[type:text value:[unattributed]]] map[reflowTime:1.253 source:map[column:924074 line:55 type:source-location url:https://content.r9cdn.net/frontier/assets/nNPJO96_9o.js urlProvider:network]] map[reflowTime:1.365 source:map[column:19043 line:1 type:source-location url:https://content.r9cdn.net/frontier/assets/BQ5AqrHTm4.js urlProvider:network]] map[reflowTime:1.809 source:map[column:774097 line:55 type:source-location url:https://content.r9cdn.net/frontier/assets/nNPJO96_9o.js urlProvider:network]] map[reflowTime:0.729 source:map[column:651 line:0 type:source-location url:https://content.r9cdn.net/frontier/assets/Dji7UQ8w2p.js urlProvider:network]] map[reflowTime:31.487 source:map[column:315567 line:58 type:source-location url:https://content.r9cdn.net/frontier/assets/nNPJO96_9o.js urlProvider:network]]]

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:395.808 label:Time to first byte subpart:timeToFirstByte] map[duration:2035.805 label:Resource load delay subpart:resourceLoadDelay] map[duration:507.88 label:Resource load duration subpart:resourceLoadDuration] map[duration:325.92 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
path: 1,HTML,1,BODY,1,DIV,0,DIV,1,DIV,2,DIV,0,MAIN,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,IMG
selector: div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
snippet: <img class="Ez1T" loading="lazy" width="220" height="220" src="https://content.r9cdn.net/frontier/assets/B78-YSGPh-.png" srcset="https://content.r9cdn.net/frontier/assets/YHji6z5a7N.png 1.5x, https://con…" alt="" aria-hidden="true">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
path: 1,HTML,1,BODY,1,DIV,0,DIV,1,DIV,2,DIV,0,MAIN,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,IMG
selector: div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
snippet: <img class="Ez1T" loading="lazy" width="220" height="220" src="https://content.r9cdn.net/frontier/assets/B78-YSGPh-.png" srcset="https://content.r9cdn.net/frontier/assets/YHji6z5a7N.png 1.5x, https://con…" alt="" aria-hidden="true">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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
value: No additional origins are good candidates for preconnecting

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
content.r9cdn.net/frontier/assets/7RrfH3V-LA.css19.6 KiB
content.r9cdn.net/frontier/assets/DAJmCM_Dbf.css727 B
content.r9cdn.net/frontier/assets/Dizxt3XUpa.css1.7 KiB
content.r9cdn.net/frontier/assets/CyT_MJWEzk.css405 B
content.r9cdn.net/frontier/assets/CgrbDvyJvs.css490 B
content.r9cdn.net/frontier/assets/D4DU8yXsog.css763 B
content.r9cdn.net/frontier/assets/C2g3grerNY.css302 B
content.r9cdn.net/frontier/assets/C4z5eMDb50.css473 B
content.r9cdn.net/frontier/assets/BkpAH7cyjN.css1.0 KiB
content.r9cdn.net/frontier/assets/D69tlAGlGs.css1007 B
content.r9cdn.net/frontier/assets/BMtOkAWiMq.css528 B
content.r9cdn.net/frontier/assets/Dx8smn8a-i.css960 B
content.r9cdn.net/frontier/assets/DfTROKXHUH.css563 B
content.r9cdn.net/frontier/assets/vTTsoscZFF.css511 B
content.r9cdn.net/frontier/assets/DkWcedeDl-.css477 B
content.r9cdn.net/frontier/assets/Dj5BNtaZ6v.css1.8 KiB
content.r9cdn.net/frontier/assets/C8Fh-zxCXt.css337 B
content.r9cdn.net/frontier/assets/D9LyFc7oBg.css723 B
content.r9cdn.net/frontier/assets/jmFeWyq6mj.css413 B
content.r9cdn.net/frontier/assets/BK04Fk7hW-.css560 B
content.r9cdn.net/frontier/assets/Cb1Xz24qo1.css953 B
content.r9cdn.net/frontier/assets/DuXg3g23wy.css503 B
content.r9cdn.net/frontier/assets/CUaD-XPpy8.css460 B
content.r9cdn.net/frontier/assets/DmSx52iOrm.css1.3 KiB
content.r9cdn.net/frontier/assets/BrpUSp4CV5.css320 B
content.r9cdn.net/frontier/assets/BmBrDXV6Yp.css1.1 KiB
content.r9cdn.net/frontier/assets/DSHOTusBkw.css48.5 KiB
content.r9cdn.net/frontier/assets/C3WVumoHQt.css377 B
content.r9cdn.net/frontier/assets/CN9dH5qokQ.css981 B
content.r9cdn.net/frontier/assets/C6aObLIDsf.css992 B
content.r9cdn.net/frontier/assets/C6JCcGfJS4.css1.9 KiB
content.r9cdn.net/frontier/assets/DdooitUOI4.css459 B
content.r9cdn.net/frontier/assets/D8LrqMZ-5A.css547 B
content.r9cdn.net/frontier/assets/DrVRj8cgNk.css1.2 KiB
content.r9cdn.net/frontier/assets/FuWoj0B03x.css411 B
content.r9cdn.net/frontier/assets/CN9YnRYNQ7.css315 B
content.r9cdn.net/frontier/assets/DLO2pqpLVk.css797 B
content.r9cdn.net/frontier/assets/CmcSKsElwD.css798 B
content.r9cdn.net/frontier/assets/Cw7bz0u3V2.css885 B
content.r9cdn.net/frontier/assets/CDb4vgIzIk.css697 B
content.r9cdn.net/frontier/assets/CT8HnFqo_x.css1.1 KiB
content.r9cdn.net/frontier/assets/CMClTv_-47.css608 B
content.r9cdn.net/frontier/assets/qSI4DtpTXd.css1.1 KiB
content.r9cdn.net/frontier/assets/D9he9dtLwj.css490 B
content.r9cdn.net/frontier/assets/CIk86tRFvQ.css549 B
content.r9cdn.net/frontier/assets/C48lOcN_Qy.css874 B
content.r9cdn.net/frontier/assets/CSnVX0UD7O.css462 B
content.r9cdn.net/frontier/assets/DsGFGJsxPI.css706 B
content.r9cdn.net/frontier/assets/uMSmTC25Mq.css753 B
content.r9cdn.net/frontier/assets/CXCCOARfeG.css307 B
content.r9cdn.net/frontier/assets/DT6D2ktTMh.css1.7 KiB
content.r9cdn.net/frontier/assets/CWD6ux67sk.css1.4 KiB
content.r9cdn.net/frontier/assets/7OCFJSfnve.css1.3 KiB
content.r9cdn.net/frontier/assets/MSZTgszF4T.css265 B
content.r9cdn.net/frontier/assets/Bup3JOFJgq.css438 B
content.r9cdn.net/frontier/assets/DAyQ3bgura.css417 B
content.r9cdn.net/frontier/assets/BySq7ncAdn.css698 B
content.r9cdn.net/frontier/assets/G3DBTKKOxf.css2.5 KiB
content.r9cdn.net/frontier/assets/y2Gk7eeVtH.css2.7 KiB
content.r9cdn.net/frontier/assets/CjIgltI2sX.css1.4 KiB
content.r9cdn.net/frontier/assets/jqKuHyVAUP.css853 B
content.r9cdn.net/frontier/assets/DqoKsp7QrE.css389 B
content.r9cdn.net/frontier/assets/CuArLKpDyC.css403 B
content.r9cdn.net/frontier/assets/Cz4_xqKJ5Z.css836 B
content.r9cdn.net/frontier/assets/Bil2pyID-1.css509 B
content.r9cdn.net/frontier/assets/DHcnDz4Un9.css506 B
content.r9cdn.net/frontier/assets/BC-J_N9y0L.css620 B
content.r9cdn.net/frontier/assets/DWHZfwVMMQ.css398 B
content.r9cdn.net/frontier/assets/Cj84S4mq2a.css2.8 KiB
content.r9cdn.net/frontier/assets/DTA7O72QmX.css2.8 KiB
content.r9cdn.net/frontier/assets/Dy97FWM6kN.css24.4 KiB338 ms
content.r9cdn.net/frontier/assets/Dy3s8LI9wL.css425 B
content.r9cdn.net/frontier/assets/CT5D0ALSmA.css964 B
content.r9cdn.net/frontier/assets/BFkKrMeiG9.css2.8 KiB
content.r9cdn.net/frontier/assets/DAbJAmBprB.css5.5 KiB
content.r9cdn.net/frontier/assets/Cr1phVD3_k.css2.9 KiB
content.r9cdn.net/frontier/assets/DlQ9y3glJZ.css5.3 KiB
content.r9cdn.net/frontier/assets/C6zD-rdnAw.css494 B

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
ads.pubmatic.com/AdServer/js/pwt/167312/18979/pwt.js157108.0 s136.4 KiB
bat.bing.com/p/insights/s/0.8.5986400.0 s15.6 KiB
/rimg/provider-logos/airlines/v/AS.png?crop=false&width=1...435600.0 s12.8 KiB
/rimg/provider-logos/airlines/v/UA.png?crop=false&width=1...673200.0 s10.9 KiB
/rimg/provider-logos/airlines/v/AA.png?crop=false&width=1...514800.0 s5.7 KiB
/rp.gif?id=a2_gkgghllr96c8&event=PageVisit&integration=no...0.0 ms666 B
/rimg/provider-logos/airlines/v/DL.png?crop=false&width=1...496800.0 s4.4 KiB
/rimg/provider-logos/airlines/v/B6.png?crop=false&width=1...763200.0 s3.9 KiB
/?env=web&zdid=1110&eventType=pageview&gdpr=1&gdpr_consen...0.0 ms368 B
/tr/?id=1347583438592982&ev=PageView&ts=1776293816&fbp=fb...0.0 ms19 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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/tDvMG0XMPE.png92.3 KiB84.4 KiB
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/BAWXupsgkG.png87.3 KiB79.4 KiB
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/BnHJJLI5dK.png79.7 KiB71.8 KiB
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/B78-YSGPh-.png76.8 KiB69.0 KiB
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/C4mMXIMv2W.png75.6 KiB67.8 KiB
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/CUXpOgsxPJ.png69.1 KiB61.2 KiB
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/CAvTY9b4SO.png64.0 KiB56.1 KiB
div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T div.E9x1-container > div.E98K > div.OnKJ > img.Ez1T
content.r9cdn.net/frontier/assets/D9SjeOszg-.png55.9 KiB48.0 KiB
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/res/images/people/avatar-3.png?v=00227cc2d66e60b9a38e87a...13.2 KiB12.9 KiB
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/AS.png?crop=false&width=1...12.5 KiB12.4 KiB
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/res/images/people/avatar-1.png?v=cfaf5a64667edf6169023e3...12.3 KiB11.9 KiB
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/res/images/people/avatar-2.png?v=d8c9229643d04552ba0f027...11.4 KiB11.1 KiB
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/UA.png?crop=false&width=1...10.5 KiB10.4 KiB
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/AA.png?crop=false&width=1...5.3 KiB5.2 KiB

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 207 ms
URLTime Spent
kayak.com/207 ms
www.kayak.com/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
For travel pros KAYAK.ai BETA Get travel questions answered Best Time to Travel… main.WKSW > div.Seuf > div.q9wv > div
0.060
For travel pros KAYAK.ai BETA Get travel questions answered Best Time to Travel… main.WKSW > div.Seuf > div.q9wv > div
0.053
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 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: 510 ms 1.4 MiB
URLTransfer SizeEst Savings
content.r9cdn.net/frontier/assets/nNPJO96_9o.js575.0 KiB265.9 KiB
content.r9cdn.net/frontier/assets/C56mkV0DvP.js312.2 KiB222.7 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...186.4 KiB99.6 KiB
72164059993b.cdn4.forter.com/sn/72164059993b/script.js210.2 KiB89.8 KiB
ads.pubmatic.com/AdServer/js/pwt/167312/18979/pwt.js136.0 KiB88.4 KiB
content.r9cdn.net/frontier/assets/Cy3xa8euyp.js94.7 KiB72.4 KiB
accounts.google.com/gsi/client95.3 KiB71.0 KiB
/gtag/js?id=G-PWCRSK2Y5Y&l=unifiedDataLayer&cx=c&gtm=4e64e1171.5 KiB63.7 KiB
/gtag/destination?id=DC-5142311&l=unifiedDataLayer&cx=c&g...129.1 KiB60.1 KiB
/gtag/destination?id=AW-undefined&l=unifiedDataLayer&cx=c...133.8 KiB59.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-PSCCSHQ&l=unifiedDataLayer168.1 KiB59.0 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js105.0 KiB57.6 KiB
/gtag/destination?id=AW-988306736&l=unifiedDataLayer&cx=c...143.7 KiB56.6 KiB
fundingchoicesmessages.google.com/i/12907657?ers=368.5 KiB36.9 KiB
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?fcd=true54.2 KiB36.6 KiB
content.r9cdn.net/frontier/assets/C1ipMDniAh.js100.5 KiB35.1 KiB
content.r9cdn.net/frontier/assets/DszS9H0Pwt.js43.6 KiB31.6 KiB
content.r9cdn.net/frontier/assets/CH9QYAfBte.js47.1 KiB27.0 KiB
content.r9cdn.net/frontier/assets/DAiMRsI0wD.js26.3 KiB20.2 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
content.r9cdn.net/frontier/assets/CcD8mPq4Km.js1.4 s1.1 s2.2 ms
Unattributable1.2 s302 ms0.0 ms
www.kayak.com/1.1 s20 ms4.3 ms
content.r9cdn.net/frontier/assets/CH9QYAfBte.js328 ms47 ms0.3 ms
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...240 ms217 ms15 ms
(program):2192 ms159 ms0.0 ms
/gtag/js?id=G-PWCRSK2Y5Y&l=unifiedDataLayer&cx=c&gtm=4e64e1191 ms163 ms26 ms
content.r9cdn.net/frontier/assets/nNPJO96_9o.js123 ms109 ms4.4 ms
/gtag/destination?id=AW-988306736&l=unifiedDataLayer&cx=c...95 ms84 ms10 ms
fundingchoicesmessages.google.com/i/12907657?ers=386 ms80 ms5.3 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js81 ms68 ms11 ms
/gtag/destination?id=DC-5142311&l=unifiedDataLayer&cx=c&g...81 ms58 ms22 ms
/gtag/destination?id=AW-undefined&l=unifiedDataLayer&cx=c...76 ms63 ms12 ms
www.googletagmanager.com/gtm.js?id=GTM-PSCCSHQ&l=unifiedDataLayer72 ms55 ms16 ms
content.r9cdn.net/frontier/assets/BQ5AqrHTm4.js70 ms60 ms0.1 ms
ads.pubmatic.com/AdServer/js/pwt/167312/18979/pwt.js70 ms58 ms11 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 Evaluation2.9 s
Other1.6 s
Style & Layout888 ms
Rendering306 ms
Script Parsing & Compilation199 ms
Parse HTML & CSS177 ms
Garbage Collection124 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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 52.2 KiB
URLTransfer SizeEst Savings
content.r9cdn.net/frontier/assets/BmDQ7hE1B4.css23.9 KiB23.9 KiB
content.r9cdn.net/frontier/assets/7RrfH3V-LA.css19.3 KiB16.7 KiB
content.r9cdn.net/frontier/assets/DvNDqPpQ39.css11.6 KiB11.6 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
content.r9cdn.net/frontier/assets/nNPJO96_9o.js575.7 KiB
content.r9cdn.net/frontier/assets/C56mkV0DvP.js312.6 KiB
www.kayak.com/232.9 KiB
72164059993b.cdn4.forter.com/sn/72164059993b/script.js210.7 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...186.4 KiB
/gtag/js?id=G-PWCRSK2Y5Y&l=unifiedDataLayer&cx=c&gtm=4e64e1171.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-PSCCSHQ&l=unifiedDataLayer168.4 KiB
content.r9cdn.net/frontier/assets/L3YlqboauY.png144.6 KiB
/gtag/destination?id=AW-988306736&l=unifiedDataLayer&cx=c...143.8 KiB
content.r9cdn.net/frontier/assets/CTaes35WVv.woff2140.3 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/B6.png?crop=false&width=1...
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/AS.png?crop=false&width=1...
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/DL.png?crop=false&width=1...
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/UA.png?crop=false&width=1...
div.CxMh > div.c4hc > div.c4hc-image > img.DU4n div.CxMh > div.c4hc > div.c4hc-image > img.DU4n
/rimg/provider-logos/airlines/v/AA.png?crop=false&width=1...

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

●Optimize DOM size
●Font display
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 17 user timings
●Avoid long main-thread tasks 18 long tasks found
●Avoid non-composited animations 26 animated elements found
●Network Requests
●Network Round Trip Times 70 ms
●Server Backend Latencies 160 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 370 ms
○INP breakdown
92

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.c-ulo > div.c-ulo-viewport > div.c-ulo-content > span div.c-ulo > div.c-ulo-viewport > div.c-ulo-content > span

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
Welcome to KAYAK This site uses cookies and other tracking technologies for ess… body.bd-default > div > div.c1yxs > div.c-ulo

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Las Vegas div.P_Ok-wrapper > div.P_Ok-header > div.P_Ok-container > h3.P_Ok-title
How do I find travel deals on KAYAK? li.c9xAl > details.HABP > summary.HABP-button > h4.c9xAl-question

These are opportunities to improve keyboard navigation in your application.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Flights to L main.WKSW > div#main-search-form > div.c1LP5 > div.MjM6
English div.jy7a-pickers > div.ONcV > div.ONcV-country-picker > button.RxNS
$ USD div.jy7a > div.jy7a-pickers > div.ONcV > button.RxNS
○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]` 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.
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●ARIA input fields have accessible names
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○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.
77

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
/gtag/destination?id=AW-undefined&l=unifiedDataLayer&cx=c... line 546, col 244

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
accounts.google.com/gsi/client line 85, col 88
[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.
www.kayak.com/
Not signed in with the identity provider.
●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 issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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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