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· 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.

56

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
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff14854.0 s420.2 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1600.0 s210.3 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff12767.0 s187.2 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=36936287212676.0 s157.4 KiB
native.sharethrough.com/assets/sfp.js3600.0 s127.0 KiB
mssl.fwmrm.net/libs/adm/7.2.1/AdManager.js0.0 ms92.2 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest50668.0 s157.4 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
assets.adobedtm.com/a2ef59fba8e9/3ba8c6b033ff/launch-6a742ce4ddf5.min.js3600.0 s68.9 KiB
assets.adobedtm.com/ddcf247e4bf5/82484060cd13/launch-7d75747d0373.min.js3600.0 s65.0 KiB
/js/v2/us1-36d67c9e4d591d4bb1bc1fa6c82ffcb9/mparticle.js?...3600.0 s58.1 KiB
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617600.0 s48.1 KiB
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...56059.0 s92.5 KiB
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js86400.0 s102.4 KiB
cdn.branch.io/branch-latest.min.js300.0 s23.5 KiB
js-sec.indexww.com/ht/p/185796-256714881512110.js14400.0 s32.6 KiB
sb.scorecardresearch.com/internal-c2/default/streamingtag_plugin_jwplayer.js86400.0 s53.4 KiB
static.criteo.net/js/ld/publishertag.js86400.0 s47.6 KiB
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a023371.0 s27.1 KiB
ssl.p.jwpcdn.com/player/v/8.30.1/jwpsrv.js900.0 s17.9 KiB
c2.taboola.com/nr/nbcots-wcau/newsroom.js14400.0 s18.1 KiB
cdn.cookielaw.org/scripttemplates/202309.1.0/otGPP.js86400.0 s11.8 KiB
ssl.p.jwpcdn.com/player/v/8.30.1/freewheel.js86400.0 s11.2 KiB
/dvtp_src.js900.0 s3.8 KiB
/logos/17e5cb00-ad90-47f5-a58d-77597d9d2c16/ffe22c24-b5ec...86400.0 s8.2 KiB
cdn.cookielaw.org/consent/4ef4e955-b2be-4ddd-8fdc-259c8d8fee7a/otSDKStub.js86400.0 s7.4 KiB
sb.scorecardresearch.com/beacon.js86400.0 s6.7 KiB
cdn.cookielaw.org/opt-out/otCCPAiab.js86400.0 s6.4 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg86400.0 s2.7 KiB
/_r?sdk=web2.87.1&branch_key=key_live_mbWP9CyFGRlwPVupIyU...0.0 ms667 B
widgets-blue.media.weather.com/static/img/common/icons/25_white/radar.png37845.0 s872 B
/p2?c1=2&c2=6035083&ns_type=hidden&ns_st_sv=6.3.0.180917&...0.0 ms298 B
match.adsrvr.org/track/cmb/generic?ttd_tpi=1&ttd_pid=lewrkpm0.0 ms254 B
match.adsrvr.org/track/cmb/generic?ttd_tpi=1&ttd_pid=q4jldgr0.0 ms254 B
geolocation.onetrust.com/cookieconsentpub/v1/geo/location/dnsfeed0.0 ms225 B
/pagead/js/r20260422/r20110914/client/window_focus_fy2021.js1209600.0 s1.6 KiB
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s1.3 KiB
cdn.indexww.com/ht/htw-pixel.gif?0=&us_privacy=1YNN86400.0 s246 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/dvtp_src.js900.0 s0 B
/dvtp_src.js900.0 s0 B
/dvtp_src.js900.0 s0 B
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s0 B
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s0 B

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:28.908 source:map[column:66134 line:10 type:source-location url:https://ssl.p.jwpcdn.com/player/v/8.30.1/jwplayer.core.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:77.939 source:map[type:text value:[unattributed]]] map[reflowTime:2.227 source:map[column:50856 line:8 type:source-location url:https://www.nbcphiladelphia.com/wp-content/themes/nbc-station/static/video/jwplayer/jwplayer.8.30.0.js?ver=1.0.3 urlProvider:network]] map[reflowTime:9.731 source:map[column:7358 line:9 type:source-location url:https://ssl.p.jwpcdn.com/player/v/8.30.1/polyfills.webvtt.js urlProvider:network]] map[reflowTime:17.354 source:map[column:10204 line:9 type:source-location url:https://ssl.p.jwpcdn.com/player/v/8.30.1/polyfills.webvtt.js urlProvider:network]] map[reflowTime:12.672 source:map[column:7333 line:9 type:source-location url:https://ssl.p.jwpcdn.com/player/v/8.30.1/polyfills.webvtt.js 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
PHILADELPHIA PHILLIES See all PHILLIES NEWS 13 MINUTES AGO Phillies place key … main#main > div#homepage > div.homepage-modules-wrap > div.news-module-background
/2023/05/usa_citizens_bank_park_phillies.jpg?quality=85&s...456.3 KiB247.0 KiB
span#4851630387138534138948 > div#google_image_div > a#aw0 > img.img_ad span#4851630387138534138948 > div#google_image_div > a#aw0 > img.img_ad
tpc.googlesyndication.com/simgad/1309688031629226426209.4 KiB169.9 KiB
span#4851630387138549799810 > div#google_image_div > a#aw0 > img.img_ad span#4851630387138549799810 > div#google_image_div > a#aw0 > img.img_ad
tpc.googlesyndication.com/simgad/6790102879259612663208.5 KiB169.0 KiB
Wildwood, NJ, USA August 23 2013 Bikers ride on a crowded boardwalk, swerving b… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-1253351177.jpg?quality=85&strip=all&...93.3 KiB86.8 KiB
Garnet Hathaway a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Garnet-Hathaway.jpg?quality=85&strip=all&res...89.1 KiB82.6 KiB
span#4851630387138548284362 > div#google_image_div > a#aw0 > img.img_ad span#4851630387138548284362 > div#google_image_div > a#aw0 > img.img_ad
tpc.googlesyndication.com/simgad/213129181050535095983.7 KiB71.5 KiB
Christian Dvorak, Travis Konecny a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Christian-Dvorak-Travis-Konecny.jpg?quality=...72.3 KiB65.8 KiB
span#4851630387138534138504 > div#google_image_div > a#aw0 > img.img_ad span#4851630387138534138504 > div#google_image_div > a#aw0 > img.img_ad
tpc.googlesyndication.com/simgad/767443945128322266396.8 KiB57.3 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/CCD-072325_070.jpg?quality=85&strip=all&resize=8...59.3 KiB53.5 KiB
XUMO_NBC_PHILADELPHIA_FAST_STREAM img.player__poster
/2024/06/Tile_NEW-NBC10PhilaNewsLogo_DM_v2_001.jpg?qualit...60.8 KiB53.3 KiB
Trevor Zegras, Dan Vladar a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Trevor-Zegras-Dan-Vladar.jpg?quality=85&stri...58.8 KiB53.0 KiB
Jamie Drysdale, Denver Barkey a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Jamie-Drysdale-Denver-Barkey.jpg?quality=85&...56.7 KiB51.2 KiB
David Howard Thornton a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-2233786561.jpg?quality=85&strip=all&...54.6 KiB49.2 KiB
San Diego, CA, USA – May 14, 2022: A Brink’s armored truck is seen on the stree… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2025/06/brinks.jpg?quality=85&strip=all&resize=850%2C47840.9 KiB36.9 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/01/Weather-team.jpg?quality=85&strip=all&resize=850...39.7 KiB35.8 KiB
George W. Bush Jenna Bush Hager a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/web-260421-george-w-bush-jenna-bush-hager.jpg?qu...33.7 KiB30.4 KiB
“Glass Half Full” podcast featuring Scott Galloway. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
media.nbcnewyork.com/2026/04/galloway.png?resize=850%2C478&quality=85&strip=all26.8 KiB24.2 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/image-32-4.jpg?quality=85&strip=all&resize=850%2...25.7 KiB23.2 KiB
Rachel Reid, Jacob Tierney a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/image-47-4.jpg?quality=85&strip=all&resize=850%2...40.0 KiB22.1 KiB
Philly city council continues talks over tax to fund schools a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47641937897-1080pnbcstations.jpg?quality=85&stri...22.9 KiB19.9 KiB
NFL Christmas Gameday signage on a blimp a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/260422-nfl-netflix-getty.jpg?quality=85&strip=al...22.0 KiB19.8 KiB
A portrait of the late Celeste Rivas Hernandez is shown during a press briefing… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-2271742046-e1776890280945.jpg?qualit...22.0 KiB12.2 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/washington-township.png?resize=850%2C478&quality...21.7 KiB12.0 KiB
Lineup announced for Camden County's 2026 summer concert series a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47640354678-1080pnbcstations.jpg?quality=85&stri...13.0 KiB10.0 KiB
Man accused of striking officers with car appears in court a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47639995284-1080pnbcstations.jpg?quality=85&stri...10.9 KiB8.4 KiB
Local organization uses overtime hockey to raise awareness on sudden cardiac ar… a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47641985704-1080pnbcstations.jpg?quality=85&stri...7.0 KiB5.4 KiB
div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo
/2019/09/Philadelphia_On_Light@3x-4.png?fit=405%2C120&qua...9.1 KiB4.8 KiB
Watch div#home-fast-player > div.hp-livestream__title-container > div.hp-livestream__meta > img.hp-livestream__fast-logo
/2024/04/Philly-web@3x.png?fit=909%2C72&quality=85&strip=all4.7 KiB4.6 KiB

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
ak.sail-horizon.com/spm/spm.v1.min.js?ver=20261748.1 KiB422 ms
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1210.3 KiB628 ms
sb.scorecardresearch.com/internal-c2/default/streamingtag_plugin_jwplayer.js53.4 KiB208 ms
/wp-content/plugins/ad-layers-nbc/js/ad-layers.js?ver=0.0.10814 B
/wp-content/plugins/ad-layers-nbc/js/ad-layers-dfp.js?ver...1.6 KiB
/wp-content/themes/nbc-station/client/build/css/jwPlayer....22.9 KiB
/wp-content/themes/nbc-station/client/build/css/home.6de9...17.4 KiB
/wp-content/themes/nbc-station/client/build/css/unifiedId...3.3 KiB

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.

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
/dvtp_src.jshttp/1.1
/dvtp_src.jshttp/1.1
/dvtp_src.jshttp/1.1
cdn.doubleverify.com/dv-measurements9761.jshttp/1.1
/dvtp_src.jshttp/1.1

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: 205 ms
URLTime Spent
nbcphiladelphia.com/205 ms
www.nbcphiladelphia.com/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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: 200 ms 1.7 MiB
URLTransfer SizeEst Savings
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff419.9 KiB242.3 KiB
cdn.taboola.com/libtrc/nbcots-network/loader.js327.4 KiB212.8 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1209.8 KiB157.9 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB88.7 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff186.0 KiB76.4 KiB
mssl.fwmrm.net/libs/adm/7.2.1/AdManager.js91.8 KiB74.1 KiB
native.sharethrough.com/assets/sfp.js126.6 KiB64.3 KiB
ssl.p.jwpcdn.com/player/v/8.30.1/provider.hlsjs.js114.2 KiB56.3 KiB
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js102.1 KiB55.8 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872157.1 KiB54.1 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest157.1 KiB52.8 KiB
micro.rubiconproject.com/prebid/dynamic/24610.js115.9 KiB41.3 KiB
cdn.doubleverify.com/dv-measurements9761.js93.9 KiB34.9 KiB
cdn.doubleverify.com/dv-measurements9761.js93.9 KiB34.8 KiB
cdn.doubleverify.com/dv-measurements9761.js93.9 KiB34.8 KiB
cdn.doubleverify.com/dv-measurements9761.js93.9 KiB34.4 KiB
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...91.9 KiB33.2 KiB
ak.sail-horizon.com/spm/spm.v1.min.js?ver=20261747.7 KiB32.5 KiB
/js/v2/us1-36d67c9e4d591d4bb1bc1fa6c82ffcb9/mparticle.js?...57.8 KiB31.5 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.0 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB30.9 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB30.9 KiB
/wp-content/themes/nbc-station/static/video/jwplayer/jwpl...40.6 KiB30.6 KiB
sb.scorecardresearch.com/c2/plugins/streamingtag_plugin_jwplayer.js?ver=1.0.253.0 KiB30.5 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB30.2 KiB
static.criteo.net/js/ld/publishertag.js47.3 KiB29.1 KiB
assets.adobedtm.com/ddcf247e4bf5/82484060cd13/launch-7d75747d0373.min.js64.7 KiB28.0 KiB
assets.adobedtm.com/a2ef59fba8e9/3ba8c6b033ff/launch-6a742ce4ddf5.min.js68.7 KiB23.4 KiB
/wp-content/themes/nbc-station/client/build/js/jwPlayer.5...27.4 KiB21.4 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
ssl.p.jwpcdn.com/player/v/8.30.1/jwplayer.core.js2.1 s197 ms4.1 ms
Unattributable1.1 s276 ms0.0 ms
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff983 ms795 ms57 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js918 ms720 ms85 ms
www.nbcphiladelphia.com/663 ms44 ms16 ms
ssl.p.jwpcdn.com/player/v/8.30.1/provider.hlsjs.js537 ms397 ms12 ms
cdn.doubleverify.com/dv-measurements9761.js412 ms322 ms67 ms
cdn.cookielaw.org/scripttemplates/202309.1.0/otGPP.js249 ms247 ms1.8 ms
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1177 ms110 ms24 ms
/pagead/managed/js/activeview/current/ufs_web_display.js129 ms107 ms7.2 ms
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest121 ms76 ms22 ms
cdn.taboola.com/libtrc/nbcots-network/loader.js108 ms62 ms43 ms
cdn.doubleverify.com/dvtp_src.js108 ms101 ms3.6 ms
micro.rubiconproject.com/prebid/dynamic/24610.js83 ms71 ms10 ms
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...82 ms70 ms10 ms
/wp-content/themes/nbc-station/static/video/videoHeartbea...80 ms59 ms5.2 ms
widgets-blue.media.weather.com/wxwidget.loader.js?cid=36936287278 ms45 ms20 ms
assets.adobedtm.com/a2ef59fba8e9/3ba8c6b033ff/launch-6a742ce4ddf5.min.js78 ms59 ms9.7 ms
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a073 ms56 ms5.4 ms
/wp-content/themes/nbc-station/client/build/js/home.5b3b6...69 ms51 ms2.9 ms
/wp-content/themes/nbc-station/static/video/jwplayer/jwpl...65 ms48 ms14 ms
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js61 ms44 ms13 ms
assets.adobedtm.com/ddcf247e4bf5/82484060cd13/launch-7d75747d0373.min.js55 ms42 ms8.3 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation4.5 s
Other2.8 s
Style & Layout615 ms
Script Parsing & Compilation549 ms
Rendering267 ms
Garbage Collection164 ms
Parse HTML & CSS110 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.

Estimated savings: 0.0 ms 5.6 KiB
URLTransfer SizeEst Savings
/wp-content/themes/nbc-station/static/video/videoHeartbea...5.7 KiB3.0 KiB
cdn.cookielaw.org/opt-out/otCCPAiab.js5.9 KiB2.6 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 81.6 KiB
URLTransfer SizeEst Savings
@charset "UTF-8";@import"https://fonts.googleapis.com/css2?family=Roboto:wght@700,500,300&display=s…29.4 KiB29.4 KiB
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …20.2 KiB19.8 KiB
/wp-content/themes/nbc-station/client/build/css/jwPlayer....22.7 KiB16.2 KiB
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,b…20.8 KiB16.1 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
xumo-drct-ch104-mnm32.fast.nbcuni.com/live/master_5/00511/master_5_05445.ts3.5 MiB
xumo-drct-ch104-mnm32.fast.nbcuni.com/live/master_4/00511/master_4_05444.ts1.9 MiB
/out/v1/98dd3c7628f549ef9045929d1ab11ad4/2bb150785d0e4687...466.6 KiB
/2023/05/usa_citizens_bank_park_phillies.jpg?quality=85&s...456.8 KiB
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff420.2 KiB
xumo-drct-ch104-mnm32.fast.nbcuni.com/live/master_6/00511/master_6_05443.ts384.1 KiB
cdn.taboola.com/libtrc/nbcots-network/loader.js327.9 KiB
/v4/mapbox.mapbox-streets-v8,mapbox.mapbox-terrain-v2/7/3...222.3 KiB
/v4/mapbox.mapbox-streets-v8,mapbox.mapbox-terrain-v2/7/3...212.4 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1210.3 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
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47614374689-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/washington-township.png?resize=850%2C478&quality...
A portrait of the late Celeste Rivas Hernandez is shown during a press briefing… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-2271742046-e1776890280945.jpg?qualit...
Rachel Reid, Jacob Tierney a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/image-47-4.jpg?quality=85&strip=all&resize=850%2...
Lineup announced for Camden County's 2026 summer concert series a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47640354678-1080pnbcstations.jpg?quality=85&stri...
Local organization uses overtime hockey to raise awareness on sudden cardiac ar… a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47641985704-1080pnbcstations.jpg?quality=85&stri...
Philly city council continues talks over tax to fund schools a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47641937897-1080pnbcstations.jpg?quality=85&stri...
Man accused of striking officers with car appears in court a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47639995284-1080pnbcstations.jpg?quality=85&stri...
Watch div#home-fast-player > div.hp-livestream__title-container > div.hp-livestream__meta > img.hp-livestream__fast-logo
/2024/04/Philly-web@3x.png?fit=909%2C72&quality=85&strip=all
div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo
/2019/09/Philadelphia_On_Light@3x-4.png?fit=405%2C120&qua...
Wildwood, NJ, USA August 23 2013 Bikers ride on a crowded boardwalk, swerving b… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-1253351177.jpg?quality=85&strip=all&...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/image-32-4.jpg?quality=85&strip=all&resize=850%2...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/01/Weather-team.jpg?quality=85&strip=all&resize=850...
San Diego, CA, USA – May 14, 2022: A Brink’s armored truck is seen on the stree… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2025/06/brinks.jpg?quality=85&strip=all&resize=850%2C478
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/CCD-072325_070.jpg?quality=85&strip=all&resize=8...
“Glass Half Full” podcast featuring Scott Galloway. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
media.nbcnewyork.com/2026/04/galloway.png?resize=850%2C478&quality=85&strip=all
NFL Christmas Gameday signage on a blimp a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/260422-nfl-netflix-getty.jpg?quality=85&strip=al...
David Howard Thornton a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-2233786561.jpg?quality=85&strip=all&...
George W. Bush Jenna Bush Hager a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/web-260421-george-w-bush-jenna-bush-hager.jpg?qu...
Garnet Hathaway a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Garnet-Hathaway.jpg?quality=85&strip=all&res...
Trevor Zegras, Dan Vladar a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Trevor-Zegras-Dan-Vladar.jpg?quality=85&stri...
Christian Dvorak, Travis Konecny a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Christian-Dvorak-Travis-Konecny.jpg?quality=...
Jamie Drysdale, Denver Barkey a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/USA-Jamie-Drysdale-Denver-Barkey.jpg?quality=85&...
NBC10 Philadelphia div.site-footer__wrapper > div.site-footer__identity > a.site-footer__logo > img
/2024/08/WCAU_station_logo_light.png?fit=310%2C58&quality...
NBC10 Philadelphia div.flyout-nav > div.flyout-nav__logo > a > img
/2024/08/WCAU_station_logo_light.png?fit=310%2C58&quality...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2025/09/RallyBusSchedule-2025-THURSDAY-1920x1080-1.jpg?q...
Apr 13, 2026; Philadelphia, Pennsylvania, USA; Philadelphia Phillies left field… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Apr 21, 2026; Chicago, Illinois, USA; Philadelphia Phillies pitcher Jesus Luzar… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Feb 16, 2025; Clearwater, FL, USA; Philadelphia Phillies president of baseball … a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Keldon Johnson #3 of the San Antonio Spurs reacts. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
VJ Edgecombe a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Los Angeles Lakers center Deandre Ayton (5) reacts on the court after a three-p… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
The logo of the prediction market platform Kalshi is displayed on the screen of… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Spirit Airlines a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Abigail Spanberger, governor of Virginia, speaks. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
VJ Edgecombe a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Andre Drummond, Tyrese Maxey a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Nick Nurse, Elton Brand, Daryl Morey a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
VJ Edgecombe, Cooper Flagg a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img

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
●LCP breakdown
●LCP request discovery
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 10 user timings
●Avoid long main-thread tasks 20 long tasks found
●Network Requests
●Network Round Trip Times 60 ms
●Server Backend Latencies 540 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 10 ms
●Avoid large layout shifts 7 layout shifts found
○INP breakdown
○Avoid non-composited animations
78

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

When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to make command elements more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#home-fast-player > div.video-playlist__container > div.player > div.player__overlay div#home-fast-player > div.video-playlist__container > div.player > div.player__overlay

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
TRENDING div.site-header__secondary > div.site-header__wrap > div.site-header__trending > span.site-header__trending-label
PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
2 HOURS AGO div.story-card > div.story-card__text > div.story-card__meta > span.story-card__meta-time
FLYERS BLOG div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
23 MINUTES AGO div.story-card > div.story-card__text > div.story-card__meta > span.story-card__meta-time
MILITARY div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
7 MINUTES AGO div.story-card > div.story-card__text > div.story-card__meta > span.story-card__meta-time
TONIGHT 49° div > div.weather-widget > div.tonight-tomorrow > div.tonight
TOMORROW 79° div > div.weather-widget > div.tonight-tomorrow > div.tomorrow
Copyright © 2026 NBCUniversal Media, LLC. All rights reserved footer.site-footer > div.site-footer__wrapper > div.site-footer__corporate > span.site-footer__corporate-copyright

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#homepage > div#template-hero > div.hero-background > img.hero-background__img div#homepage > div#template-hero > div.hero-background > img.hero-background__img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.player > div.player__controls > div.player__progress > input#seek div.player > div.player__controls > div.player__progress > input#seek

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.top-stories-hero__wrapper > div.top-stories-hero__column-1 > div.story-card > a.story-card__thumbnail
div.upper-featured-posts__wrapper > div.upper-featured-posts__column1 > div.story-card > a.story-card__thumbnail
div.upper-featured-posts__wrapper > div.upper-featured-posts__column1 > div.story-card > a.story-card__thumbnail
div.upper-featured-posts__wrapper > div.upper-featured-posts__column2 > div.story-card > a.story-card__thumbnail
section#nbc_weather_widget-2 > div.nbc-weather-widget > div.nbc_owned_television_stations_weather_iframe > a section#nbc_weather_widget-2 > div.nbc-weather-widget > div.nbc_owned_television_stations_weather_iframe > a
div.news-module > div.news-module__column > div.story-card > a.story-card__thumbnail
div.news-module > div.news-module__column > div.story-card > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail
div.homepage-categories__row > div.homepage-categories__category > div.homepage-categories__category-item > a.story-card__thumbnail

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.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
VIDEOS nav.site-header__nav-sections > div.menu-primary-container > nav#primary-menu > a.menu-item
NEW JERSEY div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FLYERS BLOG div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
MILITARY div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WILDWOOD div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PENNSYLVANIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
SOUTH PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NEW JERSEY div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
RETAIL div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FIRST ALERT WEATHER div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
CENTER CITY PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WILDWOOD div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILADELPHIA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
CAMDEN COUNTY div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FLYERS BLOG div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
CRIME AND COURTS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
MENTAL HEALTH div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NFL div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
TELEVISION div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
CELEBRITY NEWS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
TODAY SHOW div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILADELPHIA FLYERS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FLYERS ANALYSIS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FLYERS BLOG div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FLYERS ANALYSIS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FLYERS ANALYSIS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILLIES NEWS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILLIES ANALYSIS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
PHILLIES NEWS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NBA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
VJ EDGECOMBE div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NBA div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
GAMBLING div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
AIRLINES div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
DECISION 2026 div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
SIXERS OBSERVATIONS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
SIXERS ANALYSIS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NBA DRAFT div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
SIXERS NEWS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
Privacy Policy div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1979916 > a
FCC Applications div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-2578140 > a
Terms of Service div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-3853417 > a
Advertise with us div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1979922 > a
Send Feedback div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1979952 > a
CA Notice div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-2475593 > a
Ad Choices div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1979918 > a

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Input buttons have discernible text.
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●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.
●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
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●All heading elements contain content.
●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 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
○Tables have different content in the summary attribute and `<caption>`.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○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
Topics
micro.rubiconproject.com/prebid/dynamic/24610.js line 20, col 84959
SharedStorage
/pagead/managed/js/activeview/current/ufs_web_display.js line 252, col 234
Unload event listeners are deprecated and will be removed.
sb.scorecardresearch.com/c2/plugins/streamingtag_plugin_jwplayer.js?ver=1.0.2

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
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff line 1, col 952819
Error: Source layer "c_05ap16a" does not exist on source "composite" as specified by style layer "county_lines" at i._validateLayer (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1435349) at i.<anonymous> (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1432327) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952463) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952781) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952781) at https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1338253 at o (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1335987) at https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:948674
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff line 1, col 952819
Error: Source layer "coastlines" does not exist on source "composite" as specified by style layer "coastlines" at i._validateLayer (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1435349) at i.<anonymous> (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1432327) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952463) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952781) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952781) at https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1338253 at o (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1335987) at https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:948674
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff line 1, col 952819
Error: Source layer "glin_gl_mainlakes" does not exist on source "composite" as specified by style layer "Great Lakes Coastline" at i._validateLayer (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1435349) at i.<anonymous> (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1432327) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952463) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952781) at Mt.fire (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:952781) at https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1338253 at o (https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:1335987) at https://widgets-blue.media.weather.com/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff:2:948674
/wp-content/themes/nbc-station/client/build/js/jwPlayer.5... line 1, col 76550
TypeError: Cannot read properties of null (reading 'getMPID') at https://www.nbcphiladelphia.com/wp-content/themes/nbc-station/client/build/js/jwPlayer.54e847bc590d4b75ede6.bundle.min.js:2:76551
/wp-content/themes/nbc-station/client/build/js/jwPlayer.5... line 1, col 76550
TypeError: Cannot read properties of null (reading 'getMPID') at https://www.nbcphiladelphia.com/wp-content/themes/nbc-station/client/build/js/jwPlayer.54e847bc590d4b75ede6.bundle.min.js:2:76551
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest line 1, col 433873
Uncaught (in promise) TypeError: Cannot read properties of null (reading 'clientHeight')
●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 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
85

SEO

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

Content Best Practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.nbcuniversalprivacy.com/privacy#accordionheader5here

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#homepage > div#template-hero > div.hero-background > img.hero-background__img div#homepage > div#template-hero > div.hero-background > img.hero-background__img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo div.nbc_owned_television_stations_weather_iframe > a > div.weather-module-brand > img.widget_logo
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > 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 are crawlable
●robots.txt is valid
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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