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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.

26

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
/assets/application-d715fb9e65d38bca5af4e1bdd815ddce58515...0.0 ms441.6 KiB
cdn.piano.io/api/tinypass.min.js14400.0 s132.9 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s90.9 KiB
cdn.confiant-integrations.net/NZD0M0OBz2-7bntA9GZmnQ6AMFI/msft_med/config.js1100.0 s75.6 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
cdn.confiant-integrations.net/VQj_mDSOCf-iL2iwpqQhj4-0nkA/video/config.js1100.0 s64.7 KiB
tags.tiqcdn.com/utag/politico/main/prod/utag.js300.0 s54.4 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js3600.0 s40.4 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn-gl.imrworldwide.com/novms/js/2/nlsSDK600.bundle.min.js86400.0 s73.4 KiB
/dims4/default/16de7b9/2147483647/resize/400x/quality/90/...7200.0 s38.0 KiB
/dims4/default/aa1a872/2147483647/resize/400x/quality/90/...7200.0 s31.4 KiB
platform.twitter.com/widgets.js1800.0 s27.3 KiB
/dims4/default/3334c2f/2147483647/resize/400x/quality/90/...7200.0 s30.5 KiB
/dims4/default/d5c228a/2147483647/resize/400x/quality/90/...7200.0 s29.6 KiB
/dims4/default/4a22162/2147483647/resize/400x/quality/90/...7200.0 s27.5 KiB
/dims4/default/d89918e/2147483647/resize/400x/quality/90/...7200.0 s24.5 KiB
/dims4/default/837c65e/2147483647/resize/400x/quality/90/...7200.0 s23.8 KiB
/dims4/default/e348c17/2147483647/resize/400x/quality/90/...7200.0 s22.6 KiB
/dims4/default/4445670/2147483647/resize/400x/quality/90/...7200.0 s21.4 KiB
static.chartbeat.com/js/chartbeat_video.js86400.0 s24.8 KiB
static.politico.com/hosted/politico-pro-logo_2024.png0.0 ms9.5 KiB
/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/...14400.0 s12.9 KiB
tags.crwdcntrl.net/lt/c/2641/lt.min.js86400.0 s20.4 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
use.typekit.net/zmr6qqx.js600.0 s7.2 KiB
eus.rubiconproject.com/usync.js43787.0 s11.5 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
static.chartbeat.com/js/chartbeat_mab.js86400.0 s10.2 KiB
/assets/application-8770b198b3fe72d5442210854ce10bda4e3df...0.0 ms3.5 KiB
/dims4/default/b3ebd3d/2147483647/resize/1160x>/quality/9...7200.0 s4.3 KiB
/conf/PE72C6984-84A4-4249-898F-414DD7A977DB.js86400.0 s6.9 KiB
sb.scorecardresearch.com/beacon.js86400.0 s6.7 KiB
tags.tiqcdn.com/utag/politico/main/prod/utag.361.js?utv=ut4.53.202409201901300.0 s1.5 KiB
tags.tiqcdn.com/utag/politico/main/prod/utag.206.js?utv=ut4.53.201602161953300.0 s1.4 KiB
tags.tiqcdn.com/utag/politico/main/prod/utag.96.js?utv=ut4.53.201710161652300.0 s1.3 KiB
secure-dcr.imrworldwide.com/novms/js/2/ggcmb500.js0.0 ms1.1 KiB
playlist.megaphone.fm/assets/megaphone-play-EVYWJQ6F.digested.png0.0 ms1.0 KiB
config.aps.amazon-adsystem.com/configs/38753600.0 s1.0 KiB
pagead2.googlesyndication.com/pagead/js/r20260420/r20110914/abg_lite_fy2021.js1209600.0 s8.4 KiB
/collect?v=2&fmt=js&pid=150684&time=1776798645110&url=htt...0.0 ms691 B
/utag/politico/main/prod/utag.v.js?a=politico/main/202511...300.0 s438 B
fmw7v3f2cdeur5syzm4opz3stvtux1776798647.nuid.imrworldwide.com/0.0 ms352 B
sb.scorecardresearch.com/p?c1=2&c2=8298892&cv=2.0&cj=10.0 ms298 B
/politico/main/019db173b6ce000a8edef48a497805081001907900...0.0 ms251 B
www.gstatic.com/recaptcha/api2/logo_48.png604800.0 s2.3 KiB
/p.gif?s=1&k=zmr6qqx&ht=tk&h=b18686d012a19591d825cfb511a7...604800.0 s205 B
/p.gif?s=1&k=zmr6qqx&ht=tk&h=b18686d012a19591d825cfb511a7...604800.0 s205 B
/p.css?s=1&k=zmr6qqx&ht=tk&f=9882.9883.9884.9885.9886.988...604800.0 s172 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
pagead2.googlesyndication.com/pagead/js/r20260420/r20110914/abg_lite_fy2021.js1209600.0 s0 B
use.typekit.net/zmr6qqx.js600.0 s0 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
/af/321cc2/00000000000000003b9b0d2b/27/l?primer=7cdcb44be...115 ms
/af/9e4f99/00000000000000003b9b0d18/27/l?primer=7cdcb44be...105 ms
/af/1b790e/00000000000000003b9b0d21/27/l?primer=7cdcb44be...100 ms
/af/66f69e/00000000000000003b9b0d1f/27/l?primer=7cdcb44be...85 ms
/af/704264/00000000000000003b9b0d20/27/l?primer=7cdcb44be...85 ms
/af/321cc2/00000000000000003b9b0d2b/27/l?primer=7cdcb44be...75 ms
/af/cb6232/00000000000000003b9b0ad8/27/l?primer=7fa3915bd...75 ms
/af/4b34d2/00000000000000003b9b0acf/27/l?primer=7fa3915bd...70 ms
/af/19a2f0/00000000000000003b9b0ac7/27/l?primer=7fa3915bd...70 ms
/af/9e4f99/00000000000000003b9b0d18/27/l?primer=7cdcb44be...65 ms
/af/1b790e/00000000000000003b9b0d21/27/l?primer=7cdcb44be...60 ms
/af/62203f/00000000000000003b9b0ac8/27/l?primer=7fa3915bd...50 ms
/af/66f69e/00000000000000003b9b0d1f/27/l?primer=7cdcb44be...45 ms
/af/cb6232/00000000000000003b9b0ad8/27/l?primer=7fa3915bd...45 ms
/af/275f06/00000000000000003b9b0d24/27/l?primer=7cdcb44be...45 ms
/af/97d80b/00000000000000003b9b0d29/27/l?primer=7cdcb44be...40 ms
/af/771c46/00000000000000003b9b0d2a/27/l?primer=7cdcb44be...40 ms
/af/704264/00000000000000003b9b0d20/27/l?primer=7cdcb44be...30 ms
/af/62203f/00000000000000003b9b0ac8/27/l?primer=7fa3915bd...30 ms
/af/275f06/00000000000000003b9b0d24/27/l?primer=7cdcb44be...25 ms
/af/19a2f0/00000000000000003b9b0ac7/27/l?primer=7fa3915bd...25 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...20 ms
/af/771c46/00000000000000003b9b0d2a/27/l?primer=7cdcb44be...20 ms
/af/4b34d2/00000000000000003b9b0acf/27/l?primer=7fa3915bd...20 ms
/af/97d80b/00000000000000003b9b0d29/27/l?primer=7cdcb44be...15 ms
/af/321cc2/00000000000000003b9b0d2b/27/l?primer=7cdcb44be...10 ms
/af/cb6232/00000000000000003b9b0ad8/27/l?primer=7fa3915bd...5.0 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff25.0 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:21.59 source:map[column:55386 line:1 type:source-location url:https://www.asadcdn.com/adlib/pages/politico.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:58.511 source:map[column:30577 line:0 type:source-location url:https://static.politico.com/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide/assets/js.min/core-header.min.6b45f090eeea653d6ef01f04afa4fa12.gz.js urlProvider:network]] map[reflowTime:84.129 source:map[type:text value:[unattributed]]] map[reflowTime:0.758 source:map[column:31073 line:1 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js urlProvider:network]] map[reflowTime:0.382 source:map[column:24594 line:2 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js urlProvider:network]] map[reflowTime:5.553 source:map[column:30753 line:0 type:source-location url:https://cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js urlProvider:network]] map[reflowTime:2.423 source:map[column:1772 line:0 type:source-location url:https://www.politico.com/cdn-cgi/challenge-platform/scripts/jsd/main.js urlProvider:network]] map[reflowTime:0.176 source:map[column:326 line:308 type:source-location url:https://tags.tiqcdn.com/utag/politico/main/prod/utag.js urlProvider:network]] map[reflowTime:0.537 source:map[column:12676 line:509 type:source-location url:https://tags.tiqcdn.com/utag/politico/main/prod/utag.js urlProvider:network]] map[reflowTime:19.506 source:map[column:327363 line:0 type:source-location url:https://cdn.piano.io/api/tinypass.min.js urlProvider:network]] map[reflowTime:0.244 source:map[column:26995 line:0 type:source-location url:https://www.asadcdn.com/adlib/pages/politico.js urlProvider:network]] map[reflowTime:1.464 source:map[column:45016 line:5 type:source-location url:https://cdn.cxense.com/cx.js urlProvider:network]] map[reflowTime:1.439 source:map[column:380 line:580 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]] map[reflowTime:1.117 source:map[column:47 line:303 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]] map[reflowTime:1.113 source:map[column:2108 line:0 type:source-location url:https://static.politico.com/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide/assets/js.min/preload.40def5854a636041989b77e60edb706c.gz.js urlProvider:network]] map[reflowTime:0.428 source:map[column:2152 line:0 type:source-location url:https://static.politico.com/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide/assets/js.min/preload.40def5854a636041989b77e60edb706c.gz.js urlProvider:network]] map[reflowTime:0.472 source:map[column:8470 line:0 type:source-location url:https://static.politico.com/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide/assets/js.min/core-home18-delayed.min.2b05b17d471f3231e9e278682cdd0b96.gz.js urlProvider:network]] map[reflowTime:0.969 source:map[column:285 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/getWinHeight.a475b9e9.js urlProvider:network]] map[reflowTime:18.185 source:map[column:1586 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/sightLoader.a6d7f54d.js urlProvider:network]] map[reflowTime:2.708 source:map[column:1546 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/extendSlot.82db946b.js urlProvider:network]] map[reflowTime:3.545 source:map[column:2400 line:13 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/ast.80db1f52.js urlProvider:network]] map[reflowTime:0.587 source:map[column:57 line:26 type:source-location url:https://static.chartbeat.com/js/chartbeat_video.js urlProvider:network]] map[reflowTime:1.934 source:map[column:102565 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:7.7 source:map[column:241859 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:4.732 source:map[column:97 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/getWrapperWidth.aa0b8942.js urlProvider:network]] map[reflowTime:1.839 source:map[column:15587 line:1 type:source-location url:https://www.asadcdn.com/adlib/libmodules/extensions/mediation.053541ea.js urlProvider:network]] map[reflowTime:24.203 source:map[column:400730 line:0 type:source-location url:https://cdn.piano.io/api/tinypass.min.js urlProvider:network]] map[reflowTime:4.82 source:map[column:40466 line:4 type:source-location url:https://adsdkprod.azureedge.net/viewability/versions/v5.8.27/banner.js urlProvider:network]] map[reflowTime:1.211 source:map[column:36985 line:4 type:source-location url:https://adsdkprod.azureedge.net/viewability/versions/v5.8.27/banner.js urlProvider:network]] map[reflowTime:3.027 source:map[column:123 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/getScrollTop.3431c031.js urlProvider:network]] map[reflowTime:1.311 source:map[column:1093 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/slotRenderEnded.550f04c0.js urlProvider:network]] map[reflowTime:0.431 source:map[column:258 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/scrollHandler.4d2dae3f.js urlProvider:network]] map[reflowTime:0.482 source:map[column:204 line:0 type:source-location url:https://www.asadcdn.com/adlib/libmodules/mew/rescalePlh.97d7b3f0.js urlProvider:network]] map[reflowTime:0.345 source:map[column:158104 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Alexandria Ocasio-Cortez and Saikat Chakrabarti walk together. div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
tpc.googlesyndication.com/simgad/11794225819168319544?346.0 KiB335.1 KiB
body > a > img body > a > img
/creative20/p/7917/2025/4/25/67209128/b7a6450f-d3f2-4c5f-...57.5 KiB45.3 KiB
Playbook small icon logo div.col > div.sign-up-21--logo > a.js-tealium-tracking > img
/f3/ac/db44b04543beb00446e37bcabb05/20240814-playbook-cms...32.2 KiB31.0 KiB
div.headline > div.subscribe > a > img div.headline > div.subscribe > a > img
static.politico.com/b2/74/addd33374e7eb1d4ac4a4694f25c/apple2.png29.7 KiB28.1 KiB
body > a > img body > a > img
/creative20/p/7917/2025/4/25/67209129/cd3c7369-15ed-4edf-...26.5 KiB23.9 KiB
body > a > img body > a > img
/creative20/p/7917/2025/4/25/67209134/b76befe9-8adf-430d-...25.7 KiB23.1 KiB
Alexandria Ocasio-Cortez and Saikat Chakrabarti walk together. div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/16de7b9/2147483647/resize/400x/quality/90/...37.6 KiB18.9 KiB
Kevin Warsh speaks. div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/aa1a872/2147483647/resize/400x/quality/90/...31.0 KiB13.0 KiB
US President Donald Trump speaks after signing an executive order in the Oval O… div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/d5c228a/2147483647/resize/400x/quality/90/...29.2 KiB11.8 KiB
The entrance to the former office of Eric Swalwell, with his name plate removed… div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/3334c2f/2147483647/resize/400x/quality/90/...30.1 KiB10.5 KiB
Sens. Thom Tillis (R-N.C.) and Mike Rounds (R-S.D.) confer during the confirmat… div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/4a22162/2147483647/resize/400x/quality/90/...27.1 KiB9.7 KiB
An information packet and an American flag are placed on a chair at the U.S. Ci… div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/837c65e/2147483647/resize/400x/quality/90/...23.4 KiB7.0 KiB
A boat sails past a tanker anchored on the Strait of Hormuz off the coast Qeshm… div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/d89918e/2147483647/resize/400x/quality/90/...24.1 KiB6.7 KiB
Rep. Sheila Cherfilus-McCormick (D-Fla.) looks on during a House Ethics Committ… div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/e348c17/2147483647/resize/400x/quality/90/...22.2 KiB4.8 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:329.491 label:Time to first byte subpart:timeToFirstByte] map[duration:32.146 label:Resource load delay subpart:resourceLoadDelay] map[duration:62.399 label:Resource load duration subpart:resourceLoadDuration] map[duration:2192.562 label:Element render delay subpart:elementRenderDelay]]
lhId: page-8-IMG
nodeLabel: A boat sails past a tanker anchored on the Strait of Hormuz off the coast Qeshm…
path: 7,HTML,2,BODY,1,DIV,2,MAIN,0,DIV,0,SECTION,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,SECTION,1,DIV,0,DIV,0,A,0,PICTURE,5,IMG
selector: div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
snippet: <img src="https://www.politico.com/dims4/default/d89918e/2147483647/resize/400x/qual…" alt="A boat sails past a tanker anchored on the Strait of Hormuz off the coast …" pinger-seen="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-8-IMG
nodeLabel: A boat sails past a tanker anchored on the Strait of Hormuz off the coast Qeshm…
path: 7,HTML,2,BODY,1,DIV,2,MAIN,0,DIV,0,SECTION,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,SECTION,1,DIV,0,DIV,0,A,0,PICTURE,5,IMG
selector: div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
snippet: <img src="https://www.politico.com/dims4/default/d89918e/2147483647/resize/400x/qual…" alt="A boat sails past a tanker anchored on the Strait of Hormuz off the coast …" pinger-seen="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.

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
static.chartbeat.com/js/chartbeat_mab.js10.2 KiB940 ms
ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js33.4 KiB1.4 s
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...1.4 KiB
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...2.3 KiB
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...1.4 KiB
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...7.8 KiB302 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...16.3 KiB302 ms
www.asadcdn.com/adlib/pages/politico.js25.2 KiB610 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...18.5 KiB302 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...2.8 KiB772 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...2.3 KiB151 ms
use.typekit.net/zmr6qqx.css1.3 KiB784 ms
/p.css?s=1&k=zmr6qqx&ht=tk&f=9882.9883.9884.9885.9886.988...172 B753 ms

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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: 1.0 s
URLTime Spent
politico.com/1.0 s
www.politico.com/0.0 ms

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 14.7 KiB
URLTransfer SizeEst Savings
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...17.7 KiB14.7 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: 1.4 s 888.1 KiB
URLTransfer SizeEst Savings
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js361.8 KiB177.0 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...187.7 KiB91.1 KiB
cdn.piano.io/api/tinypass.min.js132.2 KiB83.5 KiB
cdn.confiant-integrations.net/msft_med/202603241056/wrap.js151.1 KiB74.0 KiB
cdn.confiant-integrations.net/video/202603241056/wrap.js125.0 KiB67.4 KiB
www.googletagmanager.com/gtag/js?id=AW-825814891134.2 KiB59.7 KiB
www.asadcdn.com/adlib/prebid/9.53.2/politico.js121.8 KiB47.4 KiB
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...62.7 KiB46.8 KiB
c.amazon-adsystem.com/aax2/apstag.js90.5 KiB39.2 KiB
cdn-gl.imrworldwide.com/novms/js/2/nlsSDK600.bundle.min.js72.9 KiB39.0 KiB
adsdkprod.azureedge.net/viewability/versions/v5.8.27/banner.js34.6 KiB34.2 KiB
adsdkprod.azureedge.net/viewability/versions/v5.8.27/banner.js34.6 KiB34.2 KiB
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...43.8 KiB27.7 KiB
www.asadcdn.com/adlib/libmodules/mew/ast.80db1f52.js52.7 KiB23.6 KiB
cdn.cxense.com/cx.js37.5 KiB22.3 KiB
cdn.privacy-mgmt.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js41.6 KiB21.0 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
www.asadcdn.com/adlib/libmodules/extensions/mediation.053541ea.js2.9 s2.3 s66 ms
cdn.privacy-mgmt.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js2.8 s2.3 s142 ms
www.politico.com/2.7 s203 ms18 ms
Unattributable2.7 s244 ms1.7 ms
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...2.2 s1.9 s139 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js1.9 s1.5 s239 ms
www.asadcdn.com/adlib/pages/politico.js1.6 s1.2 s13 ms
cdn.confiant-integrations.net/video/202603241056/wrap.js1.4 s911 ms51 ms
cdn.confiant-integrations.net/msft_med/202603241056/wrap.js1.2 s1.0 s111 ms
cdn.piano.io/api/tinypass.min.js887 ms474 ms170 ms
adsdkprod.azureedge.net/viewability/versions/v5.8.27/banner.js794 ms574 ms153 ms
tags.tiqcdn.com/utag/politico/main/prod/utag.js748 ms680 ms41 ms
www.googletagmanager.com/gtag/js?id=AW-825814891709 ms455 ms67 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...690 ms19 ms0.8 ms
www.asadcdn.com/adlib/prebid/9.53.2/politico.js641 ms554 ms66 ms
www.politico.com/cdn-cgi/challenge-platform/scripts/jsd/main.js561 ms529 ms5.2 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...510 ms394 ms1.4 ms
c.amazon-adsystem.com/aax2/apstag.js375 ms297 ms58 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...340 ms82 ms8.0 ms
cdn-gl.imrworldwide.com/novms/js/2/nlsSDK600.bundle.min.js332 ms277 ms48 ms
cdn.cxense.com/cx.js317 ms157 ms18 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...290 ms173 ms28 ms
platform.twitter.com/widgets.js276 ms181 ms14 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...200 ms140 ms44 ms
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js193 ms154 ms22 ms
static.chartbeat.com/js/chartbeat_video.js192 ms168 ms16 ms
cdn.confiant-integrations.net/NZD0M0OBz2-7bntA9GZmnQ6AMFI/msft_med/config.js163 ms83 ms78 ms
ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js153 ms115 ms21 ms
www.asadcdn.com/adlib/libmodules/mew/ast.80db1f52.js150 ms89 ms1.8 ms
cdn-gl.imrworldwide.com/conf/PE72C6984-84A4-4249-898F-414DD7A977DB.js144 ms130 ms4.5 ms
securepubads.g.doubleclick.net/tag/js/gpt.js143 ms124 ms18 ms
tags.crwdcntrl.net/lt/c/2641/lt.min.js139 ms93 ms42 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...130 ms114 ms5.4 ms
static.ads-twitter.com/uwt.js114 ms103 ms9.2 ms
snap.licdn.com/li.lms-analytics/insight.min.js106 ms79 ms20 ms
static.chartbeat.com/js/chartbeat_mab.js100 ms88 ms4.4 ms
ep2.adtrafficquality.google/sodar/sodar2.js97 ms88 ms3.8 ms
/resource/0000017e-7fd1-d4e5-adfe-7ff9f1280001/styleguide...92 ms63 ms11 ms
cdn.confiant-integrations.net/VQj_mDSOCf-iL2iwpqQhj4-0nkA/video/config.js91 ms39 ms49 ms
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...71 ms36 ms6.5 ms
config.aps.amazon-adsystem.com/configs/387555 ms52 ms0.9 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 Evaluation19.1 s
Other5.7 s
Style & Layout2.5 s
Script Parsing & Compilation1.9 s
Rendering657 ms
Garbage Collection543 ms
Parse HTML & CSS410 ms

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
/assets/application-d715fb9e65d38bca5af4e1bdd815ddce58515...441.6 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362.3 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js361.9 KiB
tpc.googlesyndication.com/simgad/11794225819168319544?346.5 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...187.7 KiB
cdn.confiant-integrations.net/msft_med/202603241056/wrap.js151.4 KiB
www.googletagmanager.com/gtag/js?id=AW-825814891134.5 KiB
cdn.piano.io/api/tinypass.min.js132.9 KiB
cdn.confiant-integrations.net/video/202603241056/wrap.js125.4 KiB
www.asadcdn.com/adlib/prebid/9.53.2/politico.js121.9 KiB

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

●Layout shift culprits
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 21 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 295 animated elements found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 110 ms
●Server Backend Latencies 610 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 20 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
74

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

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
Advertisement ol.media-item-list > li#quick-pops-sponsored > div#native11-wrap > div#native11_rlWr
Advertisement div.container__column > div.container__slot > div#native12-wrap > div#native12_rlWr

Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Advertisement body#templateCoreHomepage > div.page-wrapper > div.bgc--transparent > div#banner-wrap
Advertisement div.container__row > div.container__column > div.container__slot > div#mrec5-wrap
Advertisement div.module > ol.media-item-list > li#quick-pops-sponsored > div#native11-wrap
Advertisement div.container__row > div.container__column > div.container__slot > div#native12-wrap
Advertisement div.container__column > div.container__row > div.container__slot > div#mrec4-wrap
Advertisement div.container__column > div.container__row > div.container__slot > div#mrec6-wrap

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
BY POLITICO MAGAZINE div.media-item__summary > div.meta > div.meta__details > p.authors
POLITICO MAGAZINE div.meta__details > p.authors > span.vcard > span

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.headline > div.subscribe > a > img div.headline > div.subscribe > a > img
div.headline > div.subscribe > a > img div.headline > div.subscribe > a > img
div#anchor > div#div_utif_anchor > div.oneTag > img div#anchor > div#div_utif_anchor > div.oneTag > img

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.podcast-today > div.headline > div.podcast-embed-crop > iframe div.podcast-today > div.headline > div.podcast-embed-crop > iframe

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.podcast-today > div.headline > div.subscribe > a
div.podcast-today > div.headline > div.subscribe > a div.podcast-today > div.headline > div.subscribe > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
SKIP TO MAIN CONTENT body#templateCoreHomepage > div.skip-nav > div.skip-nav__action > div.skip-nav__link
div.page-header > header#js-top-header > div.header__branding > a div.page-header > header#js-top-header > div.header__branding > a
Master menu div.page-header > header#js-top-header > div.header__left > button.hamburger

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
April 21, 2026 div.container__slot > div.podcast-today > div.headline > h5

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
FORUM The Clock Is Ticking to Secure the Midterms — Here’s What the Experts Sa… div.slider__container > div#swiper-wrapper-eabc84e33c6d8143 > div.slider__slide > a.slider__card
Here’s how different US tariff revenue was in 2025 section.media-item > div.media-item__summary > h3.headline > a.js-tealium-tracking
How a major DOE report hides the whole truth on climate change section.media-item > div.media-item__summary > h3.headline > a.js-tealium-tracking
CONGRESS div.content-heading > div.content-heading__group > h2.heading > a.js-tealium-tracking
WHITE HOUSE div.content-heading > div.content-heading__group > h2.heading > a.js-tealium-tracking
LEGAL div.content-heading > div.content-heading__group > h2.heading > a.js-tealium-tracking
ELECTIONS div.content-heading > div.content-heading__group > h2.heading > a.js-tealium-tracking
FOREIGN AFFAIRS div.content-heading > div.content-heading__group > h2.heading > a.js-tealium-tracking
EARLIER div.content-heading > div.content-heading__group > h2.heading > a.js-tealium-tracking
○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
●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
●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.
●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.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
○`[accesskey]` values are unique
○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
○`<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.
○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.
○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.
73

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
A boat sails past a tanker anchored on the Strait of Hormuz off the coast Qeshm… div.media-item__image-wrapper > a.js-tealium-tracking > picture > img
/dims4/default/d89918e/2147483647/resize/400x/quality/90/...372 x 248400 x 267558 x 372

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
SharedStorage
www.politico.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
www.politico.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge
www.politico.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Topics
www.asadcdn.com/adlib/prebid/9.53.2/politico.js line 11, col 33053
AttributionReporting
snap.licdn.com/li.lms-analytics/insight.min.js

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
tags.crwdcntrl.net/lt/c/2641/lt.min.js
LT.JS: The following error occurred when executing queued commands: Must provide a consent object like: {"analytics":true,"datasharing":true,"targeting":true,"crossdevice":true}
tags.crwdcntrl.net/lt/c/2641/lt.min.js
LT.JS: The following error occurred when executing queued commands: Must provide a consent object like: {"analytics":true,"datasharing":true,"targeting":true,"crossdevice":true}
●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
●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
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

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.headline > div.subscribe > a > img div.headline > div.subscribe > a > img
div.headline > div.subscribe > a > img div.headline > div.subscribe > a > img
div#anchor > div#div_utif_anchor > div.oneTag > img div#anchor > div#div_utif_anchor > div.oneTag > img

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 have descriptive text
●Links are crawlable
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`
○robots.txt is valid

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