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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.

31

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
/covers/artl_JK62Ls099RK/b55e384d-5969-4f59-8b31-69a562b4...0.0 ms664.1 KiB
/covers/artl_wQ0gGSvwq3P/bf4267fb-7757-403a-8a1d-45ee020a...0.0 ms423.8 KiB
/covers/artl_damyZHM9Mqa/6b0e2cab-56ca-4b97-8649-7e73bdf4...0.0 ms298.8 KiB
cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js1200.0 s257.5 KiB
/6af07a2d-d0d3-4dfd-961a-bab066126220-web.js900.0 s226.3 KiB
s.ntv.io/serve/load.js3600.0 s251.1 KiB
htlbid.com/build/ebcbf00d-6489-4dcb-9b8b-eaeaee493ad7/hnpbid.js600.0 s146.7 KiB
/covers/artl_JK62Ls09nLK/0cfbf74f-118c-438f-a7dd-32085311...0.0 ms127.2 KiB
/scripts/b8d94fd702b39f91830ea26eb261a1dd7eb3f9d18e86f88c...3600.0 s131.1 KiB
/signals/config/169188807166631?v=2.9.303&r=stable&domain...1200.0 s97.1 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s91.0 KiB
/covers/artl_JK62Ls099RK/b55e384d-5969-4f59-8b31-69a562b4...0.0 ms70.7 KiB
cdn.everlit.audio/themes/pbls_72eywgtpWkj/fonts/Sora.ttf0.0 ms56.6 KiB
/hearstnewspapers-9rqIDoYfbw/_hearst-floors/prebid-load.js3600.0 s70.7 KiB
assets.revcontent.com/master/delivery.js60.0 s53.0 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=96591800.0 s59.0 KiB
ak.sail-horizon.com/spm/spm.v1.min.js600.0 s48.1 KiB
cdn.p-n.io/pushly-sdk.min.js?domain_key=DJwPUw32alqQ4cGJBGbmKscdzm0oZN50nMYN300.0 s45.8 KiB
/signals/config/2104221749722897?v=2.9.303&r=stable&domai...1200.0 s46.1 KiB
ml314.com/tag.aspx?2133600.0 s38.7 KiB
d15kdpgjg3unno.cloudfront.net/oPS.js?cid=3184600.0 s60.3 KiB
www.chron.com/_next/static/css/068ea46319039004.css0.0 ms24.1 KiB
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js900.0 s21.7 KiB
b-code.liadm.com/b-028s.min.js86400.0 s47.0 KiB
assets.revcontent.com/master/brandWidget~feedWidget.75645bdd.delivery.js60.0 s17.1 KiB
/statics/assetsab/9659/abimage/8d94caef-8f30-4614-a55d-b8...3600.0 s18.6 KiB
/covers/artl_wQ0gGSvwq3P/bf4267fb-7757-403a-8a1d-45ee020a...0.0 ms13.2 KiB
/covers/artl_1Po8xtjbNxQ/bb6f0bdc-42d2-40ed-b764-83e7fb13...0.0 ms10.9 KiB
assets.revcontent.com/master/feedWidget.75645bdd.delivery.js60.0 s10.5 KiB
/covers/artl_xPk5YCwVnZK/b83593db-998f-4493-8262-50ac8a00...0.0 ms10.4 KiB
/covers/artl_zK3G5cGZGDK/571714b5-4e23-45e3-a937-45f85fc5...0.0 ms9.8 KiB
/covers/artl_XQlJkFYOYda/6fe467e5-ae97-40e0-9e42-126cdaef...0.0 ms8.9 KiB
/covers/artl_wQWylH0Avea/c74145c8-ea6b-4c89-bd71-835c2a9a...0.0 ms8.9 KiB
assets.revcontent.com/master/defaultWidget~feedWidget.75645bdd.delivery.js60.0 s8.6 KiB
/covers/artl_VaRgzSoN3dP/169e5aa4-22b4-48ae-abf4-1734af48...0.0 ms8.3 KiB
/covers/artl_7Q5y4HqB8pQ/ce2a0af3-c548-45e7-966c-debd4f67...0.0 ms8.2 KiB
/covers/artl_NKDzNi0LMqP/608c866b-3a43-41ef-8350-30ccb4af...0.0 ms8.1 KiB
/covers/artl_ya2V7sMbowa/a907f5e8-d6e6-4e5a-a472-0d0f13bb...0.0 ms7.8 KiB
/covers/artl_damyZHM9Mqa/6b0e2cab-56ca-4b97-8649-7e73bdf4...0.0 ms7.7 KiB
/covers/artl_1Po8xtjDvXQ/c15b25b8-1eca-46f4-95a6-e3a732b5...0.0 ms7.7 KiB
eus.rubiconproject.com/usync.js27252.0 s11.5 KiB
/covers/artl_JK62Ls09nLK/0cfbf74f-118c-438f-a7dd-32085311...0.0 ms6.7 KiB
hearstnews.solutions.cdn.optable.co/public-assets/hearstnews-sdk.js86400.0 s16.8 KiB
www.chron.com/_next/static/chunks/pages/_app-d6aa58070bba276d.js604800.0 s60.9 KiB
www.chron.com/_next/static/chunks/7787-e1f4fb6760aae2a2.js604800.0 s60.1 KiB
/covers/artl_gaN16tvdEvK/17c80175-33d6-41d3-bd92-315ab3f3...0.0 ms5.6 KiB
www.chron.com/_next/static/chunks/framework-f80cd7bf984bdace.js604800.0 s53.3 KiB
s.hdnux.com/photos/01/66/02/23/30942443/3/ratio1x1_480.webp604800.0 s43.9 KiB
static.trueanthem.com/scripts/ta.c34341.js86400.0 s10.7 KiB
global.ketchcdn.com/web/v3/config/hearst/chron/boot.js1200.0 s4.7 KiB
www.chron.com/_next/static/chunks/main-61f7121325b2456a.js604800.0 s36.6 KiB
sb.scorecardresearch.com/beacon.js86400.0 s6.7 KiB
www.chron.com/_next/static/chunks/371.d0b67b8267614a27.js604800.0 s23.0 KiB
s.hdnux.com/photos/01/66/01/66/30940580/3/ratio3x2_480.webp604800.0 s22.2 KiB
/6b971493-bc7d-4b6e-b933-34b4e401bc8d/launchpad-liveramp.js0.0 ms2.2 KiB
/?url=https://cdn.revcontent.com/assets/img/full_color_na...0.0 ms1.7 KiB
s.hdnux.com/photos/01/65/35/74/30793500/3/ratio3x2_480.webp604800.0 s14.9 KiB
s.hdnux.com/photos/01/66/02/30/30942739/3/ratio3x2_480.webp604800.0 s12.4 KiB
/revcontent/image/fetch/f_jpg,q_50,h_315,w_420,c_fill,g_f...604800.0 s11.7 KiB
config.aps.amazon-adsystem.com/configs/30703600.0 s1.4 KiB
www.chron.com/_next/static/chunks/7603-7fa2a85abf75eeb7.js604800.0 s10.1 KiB
htlbid.com/v3/chron.com/hnpbid.js600.0 s1.1 KiB
www.chron.com/_next/static/css/62e1ca45b1c25942.css0.0 ms954 B
www.chron.com/_next/static/chunks/3585-bec29a1795f8993d.js604800.0 s8.7 KiB
s.hdnux.com/photos/01/66/02/24/30942488/3/ratio3x2_240.webp604800.0 s8.0 KiB
www.chron.com/_next/static/css/71d0a191502f96e9.css0.0 ms806 B
s.hdnux.com/photos/01/65/77/55/30931806/3/ratio3x2_240.webp604800.0 s7.4 KiB
www.chron.com/_next/static/chunks/848.ae98995466ef862a.js604800.0 s7.2 KiB
s.hdnux.com/photos/01/66/01/66/30940589/3/ratio3x2_240.webp604800.0 s7.0 KiB
www.chron.com/_next/static/chunks/8749.73fe0dc0db7b4fe9.js604800.0 s6.8 KiB
s.hdnux.com/photos/01/66/02/37/30943212/7/ratio3x2_240.webp604800.0 s6.8 KiB
px.ads.linkedin.com/setuid?partner=appNexus0.0 ms675 B
link.rubiconproject.com/magnite/9095.js8698.0 s853 B
www.chron.com/_next/static/chunks/4671.fc8600817c69041f.js604800.0 s5.8 KiB
www.chron.com/_next/static/chunks/9319.68326dd4a3d69dfb.js604800.0 s5.6 KiB
www.chron.com/_next/static/chunks/6421.6faf573c18bcb34a.js604800.0 s5.2 KiB
www.chron.com/_next/static/chunks/5431.468e9a6b7207f6c3.js604800.0 s5.1 KiB
static.trueanthem.com/scripts/ta.js86400.0 s1.3 KiB
assets.revcontent.com/master/assets/px.png60.0 s504 B
www.chron.com/_next/static/chunks/4273.3eeb91012982a0d2.js604800.0 s4.6 KiB
www.chron.com/_next/static/chunks/5116.788238219538ac2e.js604800.0 s4.4 KiB
www.chron.com/_next/static/chunks/webpack-0a95a6af4cfaaed2.js604800.0 s4.2 KiB
www.chron.com/_next/static/chunks/776-4247970bcba73f32.js604800.0 s4.0 KiB
www.chron.com/_next/static/chunks/6261.1f56168e55071dd3.js604800.0 s4.0 KiB
www.chron.com/_next/static/chunks/7430.cbb6f7bbe986d308.js604800.0 s3.2 KiB
www.chron.com/publisher-asset-directory/optiCommon-1.3.0.js604800.0 s2.9 KiB
www.chron.com/_next/static/chunks/6397.5ad6df502872753a.js604800.0 s2.7 KiB
s.hdnux.com/photos/01/66/02/30/30942741/3/ratio1x1_80.webp604800.0 s2.5 KiB
www.chron.com/_next/static/chunks/8111.22dd33ae762a232c.js604800.0 s2.3 KiB
s.hdnux.com/photos/01/66/02/37/30943231/3/ratio1x1_80.webp604800.0 s2.0 KiB
/usersync/liveintent/?cb=//i.liadm.com/s/35004?bidder_id%...0.0 ms200 B
www.chron.com/_next/static/chunks/944.6de9a5567a9636b7.js604800.0 s1.8 KiB
www.chron.com/_next/static/chunks/404.cd55a37ee8695123.js604800.0 s1.7 KiB
s.hdnux.com/photos/01/66/02/24/30942488/3/ratio1x1_80.webp604800.0 s1.7 KiB
www.chron.com/_next/static/chunks/2828.0d8cc0fbf3794134.js604800.0 s1.6 KiB
www.chron.com/_next/static/chunks/3782.a9ddc4524b34a29d.js604800.0 s1.6 KiB
www.chron.com/_next/static/chunks/958.d8cac20853d28a06.js604800.0 s1.5 KiB
www.chron.com/_next/static/chunks/6328.ca32eb5af282a373.js604800.0 s1.5 KiB
match.adsrvr.org/track/cmf/generic?ttd_pid=liveintent&ttd_tpi=1&gdpr=00.0 ms149 B
/track/usersync?us_privacy=&gdpr=1&gdpr_consent=CQjA2wAQj...0.0 ms148 B
www.chron.com/_next/static/chunks/846.d3e52c35e1cce38f.js604800.0 s1.4 KiB
www.chron.com/_next/static/chunks/5231.71d645e2beff00d1.js604800.0 s1.4 KiB
www.chron.com/_next/static/chunks/5091.a818cf97fbcba8d6.js604800.0 s1.3 KiB
www.chron.com/_next/static/gH8SJ7ogUU_yZWVCgwTmf/_buildManifest.js604800.0 s1.3 KiB
www.chron.com/_next/static/chunks/8275.d294dcca11ec46e9.js604800.0 s1.3 KiB
s.hdnux.com/photos/01/66/02/34/30942983/3/ratio1x1_80.webp604800.0 s1.3 KiB
s.hdnux.com/photos/01/66/02/31/30942836/3/ratio1x1_80.webp604800.0 s1.3 KiB
www.chron.com/_next/static/chunks/9633.5b27f07f252d6975.js604800.0 s1.2 KiB
www.chron.com/_next/static/chunks/4419.e1f81fcf986968d4.js604800.0 s1.2 KiB
www.chron.com/_next/static/chunks/134.a577e5ca73e3ec97.js604800.0 s1.2 KiB
www.chron.com/_next/static/chunks/3461.2ac7766d5b7cde5d.js604800.0 s1.2 KiB
www.chron.com/_next/static/chunks/9701.b25bdaf57644ff19.js604800.0 s1.2 KiB
www.chron.com/_next/static/chunks/9529.b0967bc9fe019472.js604800.0 s1.2 KiB
www.chron.com/_next/static/chunks/7857.2c6c8362f0a79373.js604800.0 s1.2 KiB
www.chron.com/_next/static/chunks/6017.f863de7ed314ab0e.js604800.0 s1.1 KiB
www.chron.com/_next/static/chunks/4871.2f37020ddf4d01f5.js604800.0 s1.1 KiB
www.chron.com/_next/static/chunks/288.7796d95d31765c46.js604800.0 s1.1 KiB
www.chron.com/_next/static/chunks/9887.9f535985abfd2cfb.js604800.0 s1.0 KiB
www.chron.com/_next/static/chunks/7156.35e2aae6e8f58f61.js604800.0 s954 B
www.chron.com/_next/static/chunks/pages/index-c42f63495c23e3b5.js604800.0 s902 B
www.chron.com/_next/static/chunks/9323.3869205d7da9d143.js604800.0 s879 B
s.hdnux.com/photos/01/66/02/25/30942556/3/ratio1x1_80.webp604800.0 s808 B
www.chron.com/_next/static/chunks/8917.e3db85fc168d1dcd.js604800.0 s799 B
/events/0012000001fxZm9AAE?integrationType=DEFAULT&templa...0.0 ms73 B
www.chron.com/_next/static/gH8SJ7ogUU_yZWVCgwTmf/_ssgManifest.js604800.0 s730 B
www.chron.com/_next/static/chunks/389.574289dcc3f73966.js604800.0 s697 B
www.chron.com/_next/static/chunks/5870.54adb46cc3e5abb2.js604800.0 s622 B
www.chron.com/_next/static/chunks/9809.9838f013fd7cdab9.js604800.0 s559 B
www.chron.com/_next/static/chunks/9541.97b5cf62c68f13f3.js604800.0 s420 B
/tr/?id=2104221749722897&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms16 B
/tr/?id=169188807166631&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms16 B
/covers/artl_JK62Ls099RK/b55e384d-5969-4f59-8b31-69a562b4...0.0 ms0 B
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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.

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:1864.8779990234375 label:Time to first byte subpart:timeToFirstByte] map[duration:25.5330009765625 label:Resource load delay subpart:resourceLoadDelay] map[duration:629.963 label:Resource load duration subpart:resourceLoadDuration] map[duration:25.419 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: A JetBlue Airbus A321-271NX(LR) is on the runway after landing at Adolfo Suarez…
path: 1,HTML,1,BODY,4,DIV,6,MAIN,5,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,DIV,0,PICTURE,11,IMG
selector: a > div.rel > picture > img.x100
snippet: <img alt="A JetBlue Airbus A321-271NX(LR) is on the runway after landing at Adolfo S…" loading="eager" srcset="https://s.hdnux.com/photos/01/66/02/30/30942739/3/ratio3x2_80.jpg 80w, htt…" sizes="(min-width: 1048px) 640px, (min-width: 768px) 67vw, 100vw" style="aspect-ratio:3 / 2" class="x100 y100 opc bgpc ofcv bgscv block bg-gray200 mnh0px fill">

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: A JetBlue Airbus A321-271NX(LR) is on the runway after landing at Adolfo Suarez…
path: 1,HTML,1,BODY,4,DIV,6,MAIN,5,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,DIV,0,PICTURE,11,IMG
selector: a > div.rel > picture > img.x100
snippet: <img alt="A JetBlue Airbus A321-271NX(LR) is on the runway after landing at Adolfo S…" loading="eager" srcset="https://s.hdnux.com/photos/01/66/02/30/30942739/3/ratio3x2_80.jpg 80w, htt…" sizes="(min-width: 1048px) 640px, (min-width: 768px) 67vw, 100vw" style="aspect-ratio:3 / 2" class="x100 y100 opc bgpc ofcv bgscv block bg-gray200 mnh0px fill">

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

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
Houston received the lowest 'eco score' that measures sustainability of the hos… a > div.rel > picture > img.x100
/statics/assetsab/9659/abimage/8d94caef-8f30-4614-a55d-b8...18.0 KiB17.0 KiB
One Japanese Astros fan hopes a dose of superstition can cure the club's injury… a > div.rel > picture > img.x100
s.hdnux.com/photos/01/66/02/23/30942443/3/ratio1x1_480.webp43.8 KiB6.3 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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: 1.1 s
URLTime Spent
chron.com/1.1 s
www.chron.com/0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.4 s
URLTime Spent
www.chron.com/1.5 s

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: 0.0 ms 40.0 KiB
URLTransfer SizeEst Savings
www.chron.com/_next/static/css/068ea46319039004.css23.7 KiB21.2 KiB
22.1 KiB18.8 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 150 ms 1.5 MiB
URLTransfer SizeEst Savings
s.ntv.io/serve/load.js250.4 KiB189.9 KiB
u566.chron.com/plugin/library/c639374ef06961b30d02cf0d29623622203.5 KiB160.6 KiB
player.ex.co/player/abe66618-acdd-4a60-a652-9230e747c2dd177.4 KiB139.0 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...187.7 KiB126.1 KiB
cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js257.0 KiB101.4 KiB
www.googletagmanager.com/gtag/js?id=AW-&cx=c&gtm=4e64k0h2133.9 KiB80.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-N799RG7S&gtm=4e64k0h2174.5 KiB66.9 KiB
/assets/0xB4C31EFABC209F3B75CFCFA49DCB4058E3E91866/GetJS?...97.4 KiB65.7 KiB
www.googletagmanager.com/gtag/js?id=G-X8KHTWPNCF&cx=c&gtm=4e64k0h2144.4 KiB59.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-M34WSG8129.5 KiB54.0 KiB
www.googletagmanager.com/gtag/js?84.8 KiB52.6 KiB
u566.chron.com/plugin/plugin/db46d7aeff1612c61d56388bc25f43ed88.0 KiB48.0 KiB
htlbid.com/build/ebcbf00d-6489-4dcb-9b8b-eaeaee493ad7/hnpbid.js146.4 KiB44.6 KiB
c.amazon-adsystem.com/aax2/apstag.js90.5 KiB39.9 KiB
/hearstnewspapers-9rqIDoYfbw/_hearst-floors/prebid-load.js70.3 KiB36.3 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB35.0 KiB
ak.sail-horizon.com/spm/spm.v1.min.js47.7 KiB31.5 KiB
/signals/config/169188807166631?v=2.9.303&r=stable&domain...97.0 KiB26.6 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=965958.7 KiB25.9 KiB
ml314.com/tag.aspx?21338.2 KiB25.6 KiB
www.chron.com/_next/static/chunks/7787-e1f4fb6760aae2a2.js59.9 KiB25.4 KiB
d15kdpgjg3unno.cloudfront.net/oPS.js?cid=3159.8 KiB24.9 KiB
www.chron.com/_next/static/chunks/pages/_app-d6aa58070bba276d.js60.6 KiB22.7 KiB
plugins.blueconic.net/static/scripts/jquery/jquery-3.7.1-BC-v2.min.js29.7 KiB22.0 KiB
/6af07a2d-d0d3-4dfd-961a-bab066126220-web.js225.7 KiB21.5 KiB
www.chron.com/_next/static/chunks/371.d0b67b8267614a27.js22.3 KiB20.8 KiB
/signals/config/2104221749722897?v=2.9.303&r=stable&domai...46.0 KiB20.0 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
d15kdpgjg3unno.cloudfront.net/oPS.js?cid=3114.4 s14.3 s21 ms
Unattributable2.9 s493 ms0.0 ms
u566.chron.com/script.js2.0 s1.7 s25 ms
www.chron.com/_next/static/chunks/framework-f80cd7bf984bdace.js2.0 s1.6 s21 ms
www.chron.com/1.7 s498 ms19 ms
cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js1.6 s1.4 s136 ms
cdn.p-n.io/pushly-sdk.min.js?domain_key=DJwPUw32alqQ4cGJBGbmKscdzm0oZN50nMYN1.4 s1.3 s15 ms
htlbid.com/build/ebcbf00d-6489-4dcb-9b8b-eaeaee493ad7/hnpbid.js1.2 s1.1 s48 ms
/6af07a2d-d0d3-4dfd-961a-bab066126220-web.js963 ms638 ms111 ms
www.googletagmanager.com/gtag/js?id=G-X8KHTWPNCF&cx=c&gtm=4e64k0h2533 ms496 ms35 ms
www.googletagmanager.com/gtm.js?id=GTM-N799RG7S&gtm=4e64k0h2480 ms409 ms51 ms
assets.revcontent.com/master/delivery.js478 ms387 ms16 ms
s.ntv.io/serve/load.js414 ms331 ms78 ms
/experimentsexperience/render?siteId=9659&url=https%3A%2F...382 ms328 ms0.2 ms
/scripts/b8d94fd702b39f91830ea26eb261a1dd7eb3f9d18e86f88c...368 ms322 ms42 ms
/signals/config/169188807166631?v=2.9.303&r=stable&domain...328 ms285 ms28 ms
www.googletagmanager.com/gtm.js?id=GTM-M34WSG8324 ms283 ms35 ms
c.amazon-adsystem.com/aax2/apstag.js324 ms278 ms31 ms
js-agent.newrelic.com/nr-spa-1.313.1.min.js316 ms261 ms7.7 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...268 ms221 ms45 ms
/assets/0xB4C31EFABC209F3B75CFCFA49DCB4058E3E91866/GetJS?...229 ms194 ms34 ms
connect.facebook.net/en_US/fbevents.js203 ms131 ms70 ms
www.googletagmanager.com/gtag/js?id=AW-&cx=c&gtm=4e64k0h2192 ms147 ms44 ms
www.chron.com/_next/static/chunks/pages/index-c42f63495c23e3b5.js140 ms139 ms0.2 ms
player.ex.co/player/abe66618-acdd-4a60-a652-9230e747c2dd133 ms81 ms45 ms
b-code.liadm.com/b-028s.min.js126 ms104 ms12 ms
/hearstnewspapers-9rqIDoYfbw/_hearst-floors/prebid-load.js123 ms97 ms23 ms
/v2/0/kbv2llh70wG-EG7h0O7egTSFzqC0OVcIaQxdzJOe2Umwdd05zlw...118 ms100 ms8.2 ms
www.chron.com/_next/static/chunks/pages/_app-d6aa58070bba276d.js115 ms88 ms21 ms
www.chron.com/_next/static/chunks/main-61f7121325b2456a.js99 ms87 ms11 ms
/signals/config/2104221749722897?v=2.9.303&r=stable&domai...84 ms65 ms18 ms
securepubads.g.doubleclick.net/tag/js/gpt.js84 ms72 ms11 ms
ak.sail-horizon.com/spm/spm.v1.min.js72 ms57 ms14 ms
assets.revcontent.com/master/brandWidget~feedWidget.75645bdd.delivery.js70 ms60 ms8.9 ms
hearst.blueconic.net/DG/DEFAULT/cs?&callback=bc_json16764 ms47 ms0.2 ms
u566.chron.com/plugin/library/c639374ef06961b30d02cf0d2962362264 ms2.5 ms57 ms
/t?ntv_mvi=&ntv_kv=section*home&ntv_url=https%253A%252F%2...59 ms53 ms1.7 ms
u566.chron.com/plugin/plugin/db46d7aeff1612c61d56388bc25f43ed52 ms14 ms37 ms
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js51 ms45 ms6.3 ms
www.googletagmanager.com/gtag/js?51 ms32 ms18 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 Evaluation28.6 s
Other3.2 s
Script Parsing & Compilation1.4 s
Garbage Collection637 ms
Style & Layout606 ms
Parse HTML & CSS423 ms
Rendering243 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

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.

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

Layout shift culprits
Optimize DOM size
Font display
Forced reflow
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify CSS
User Timing marks and measures 40 user timings
Avoid long main-thread tasks 20 long tasks found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 110 ms
Server Backend Latencies 470 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
INP breakdown
Avoid non-composited animations
Avoid large layout shifts
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
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[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
`<frame>` or `<iframe>` elements have a title
`<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.
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
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
`<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.
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.
73

Best Practices

Trust and Safety

Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
Unload event listeners are deprecated and will be removed.
www.chron.com/ line 6, col 8711
SharedStorage
u566.chron.com/script.js line 821, col 205
AttributionReporting
Topics

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
www.chron.com/ line 6, col 8711
[GPT] Exception in googletag.cmd function: TypeError: e.permutive.ready is not a function. https://goo.gle/gpt-message#30
www.chron.com/ line 6, col 8711
%c PerimeterXLoadError color: #f54f4f; font-weight:bold; [object Object]
Access to fetch at 'https://fid.agkn.com/f?apiKey=2831332485' from origin 'https://www.chron.com' has been blocked by CORS policy: The value of the 'Access-Control-Allow-Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'.
Access to XMLHttpRequest at 'https://0272ac85-5199-4024-a555-397c3d825d95.prmutv.co/v2.0/pxid?k=' from origin 'https://www.chron.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Access to XMLHttpRequest at 'https://api.permutive.com/standard-audiences/v1/affinity?url=https%3A%2F%2Fwww.chron.com&k=' from origin 'https://www.chron.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Access to XMLHttpRequest at 'https://api.permutive.com/v2.0/geoip?include=geo&include=isp&include=ip_hash&k=' from origin 'https://www.chron.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Access to XMLHttpRequest at 'https://api.permutive.com/v2.0/internal/metrics?k=' from origin 'https://www.chron.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Access to XMLHttpRequest at 'https://api.permutive.com/v2.0/tpd/usage?k=' from origin 'https://www.chron.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Access to XMLHttpRequest at 'https://api.permutive.com/v2.0/watson?k=' from origin 'https://www.chron.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Access to XMLHttpRequest at 'https://ib.adnxs.com/getuidj?gdpr=1&gdpr_consent=' from origin 'https://www.chron.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
www.chron.com/ line 6, col 8711
Error fetching TransUnionID: TypeError: Failed to fetch at e.<computed> (https://www.chron.com/:7:46307) at loadInitialize (https://www.chron.com/_next/static/chunks/pages/_app-d6aa58070bba276d.js:1:158248) at https://www.chron.com/_next/static/chunks/pages/_app-d6aa58070bba276d.js:1:89097 at Array.map (<anonymous>) at https://www.chron.com/_next/static/chunks/pages/_app-d6aa58070bba276d.js:1:89051 at https://www.chron.com/_next/static/chunks/pages/_app-d6aa58070bba276d.js:1:89184 at oP (https://www.chron.com/_next/static/chunks/framework-f80cd7bf984bdace.js:1:81836) at o6 (https://www.chron.com/_next/static/chunks/framework-f80cd7bf984bdace.js:1:97214) at o4 (https://www.chron.com/_next/static/chunks/framework-f80cd7bf984bdace.js:1:97098) at o6 (https://www.chron.com/_next/static/chunks/framework-f80cd7bf984bdace.js:1:98309)
www.chron.com/ line 6, col 8711
Exception in queued GPT command TypeError: e.permutive.ready is not a function at m (https://0272ac85-5199-4024-a555-397c3d825d95.edge.permutive.app/6af07a2d-d0d3-4dfd-961a-bab066126220-web.js:1:162520) at https://0272ac85-5199-4024-a555-397c3d825d95.edge.permutive.app/6af07a2d-d0d3-4dfd-961a-bab066126220-web.js:1:162368 at Yv.push (https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945:19:443590) at Wv.push (https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945:19:96787) at Module.p (https://0272ac85-5199-4024-a555-397c3d825d95.edge.permutive.app/6af07a2d-d0d3-4dfd-961a-bab066126220-web.js:1:162358) at https://0272ac85-5199-4024-a555-397c3d825d95.edge.permutive.app/6af07a2d-d0d3-4dfd-961a-bab066126220-web.js:1:150898 at async Promise.all (index 0)
www.chron.com/ line 6, col 8711
Failed to initialize Ketch: TypeError: window.permutive.consent is not a function at https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1360067 at https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1360225 at s.trigger (https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1324493) at s.addListener (https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1323993) at s.on (https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1324031) at C.on (https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1451157) at https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1359649 at Generator.next (<anonymous>) at s (https://cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js:2:1560886)
Failed to load resource: net::ERR_FAILED
Failed to load resource: net::ERR_FAILED
Failed to load resource: net::ERR_FAILED
Failed to load resource: net::ERR_FAILED
Failed to load resource: net::ERR_NAME_NOT_RESOLVED
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 451 ()
Uncaught (in promise) TypeError: r.addon is not a function
Uncaught (in promise) TypeError: t.wnd.permutive.ready is not a function
Uncaught (in promise) TypeError: window.permutive.consent is not a function
Uses HTTPS
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation 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 clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.chron.com/best/aboutLearn More

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

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

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