Skip to content
https://nbcwashington.com

Lighthouse Desktop

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

Detailed Report

Audit breakdown by category with detailed findings.

67

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=6eb3ef3d10ae586673ff46637.0 s420.2 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1600.0 s210.3 KiB
native.sharethrough.com/assets/sfp.js3600.0 s126.7 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=latest33309.0 s157.4 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff56080.0 s187.2 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=36936287279836.0 s157.5 KiB
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...19406.0 s92.5 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
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617600.0 s48.1 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
ssl.p.jwpcdn.com/player/v/8.30.1/jwpsrv.js900.0 s18.0 KiB
c2.taboola.com/nr/nbcots-wrc-tv/newsroom.js14400.0 s17.6 KiB
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a079839.0 s27.1 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/d44e374b-e570...86400.0 s8.2 KiB
cdn.cookielaw.org/consent/a4ab8b1a-9be6-49ad-a4a2-40f17adfc9f9/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
/js/v2/us1-36d67c9e4d591d4bb1bc1fa6c82ffcb9/mparticle.js?...3600.0 s1.6 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg86400.0 s2.7 KiB
pagead2.googlesyndication.com/pagead/js/r20260421/r20110914/abg_lite_fy2021.js1209600.0 s8.4 KiB
/_r?sdk=web2.87.1&branch_key=key_live_neXT1FwqOYOu29K1bYT...0.0 ms669 B
widgets-blue.media.weather.com/static/img/common/icons/25_white/radar.png19332.0 s872 B
/p?c1=2&c2=6035083&ns_type=hidden&ns_st_sv=6.3.0.180917&n...0.0 ms299 B
geolocation.onetrust.com/cookieconsentpub/v1/geo/location/dnsfeed0.0 ms221 B
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s1.2 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.

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:37.708 source:map[column:346450 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js urlProvider:network]] map[reflowTime:0.47 source:map[column:346794 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js urlProvider:network]] map[reflowTime:3.29 source:map[column:393666 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js urlProvider:network]] map[reflowTime:1.427 source:map[column:159246 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js urlProvider:network]] map[reflowTime:18.679 source:map[type:text value:[unattributed]]] map[reflowTime:0.154 source:map[column:143046 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js urlProvider:network]]]

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
value: No additional origins are good candidates for preconnecting

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1210.3 KiB540 ms
sb.scorecardresearch.com/internal-c2/default/streamingtag_plugin_jwplayer.js53.4 KiB229 ms
ak.sail-horizon.com/spm/spm.v1.min.js?ver=20261748.1 KiB404 ms
/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 KiB81 ms
/wp-content/themes/nbc-station/client/build/css/unifiedId...3.3 KiB
/wp-content/themes/nbc-station/client/build/css/home.6de9...17.4 KiB
/wp-content/themes/nbc-station/client/build/css/alerts.85...5.0 KiB
/wp-content/plugins/ad-layers-nbc/js/ad-layers.js?ver=0.0.10813 B

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
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/03/4mc-youth-sports-1200-v2.jpg?quality=85&strip=al...94.7 KiB88.2 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47635593470-1080pnbcstations.jpg?quality=85&stri...75.4 KiB68.9 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/03/4MC-ice-dentention-thumbnail-1200.jpg?quality=85...51.2 KiB46.2 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47614221323-1080pnbcstations.jpg?quality=85&stri...72.1 KiB42.6 KiB
span#5206224891138523179545 > div#google_image_div > a#aw0 > img.img_ad span#5206224891138523179545 > div#google_image_div > a#aw0 > img.img_ad
tpc.googlesyndication.com/simgad/243006593975261980081.5 KiB42.0 KiB
Victor Wembanyama #1 of the San Antonio Spurs holds his head. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-2271894675-e1776829529433.jpg?qualit...41.5 KiB37.4 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47636279918-1080pnbcstations.jpg?quality=85&stri...40.9 KiB36.9 KiB
San Antonio Spurs forward Victor Wembanyama (1) reacts after falling to the gro… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47621671936-1080pnbcstations.jpg?quality=85&stri...38.0 KiB34.3 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/capital-one-arena-rendering-credit-monumental.jp...37.6 KiB33.9 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/4MC-waymo-thumbnail-1200.jpg?quality=85&strip=al...52.1 KiB28.8 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47630143221-1080pnbcstations.jpg?quality=85&stri...30.1 KiB27.1 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/morris-road-se-dc-shooting-scene.jpg?quality=85&...27.9 KiB25.1 KiB
“Glass Half Full” podcast featuring Scott Galloway. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/galloway.png?resize=850%2C478&quality=85&strip=all26.8 KiB24.2 KiB
Forest bathing: Why to slow down and enjoy the woods a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47635593470-1080pnbcstations.jpg?quality=85&stri...25.6 KiB22.6 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/Virginia-voters-approve-Democrats-redistricting-...24.1 KiB21.8 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/dc-child-found-after-mother-killed-april-22-2026...37.3 KiB20.7 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 KiB19.9 KiB
XUMO_NBC_WASHINGTON_DC_FAST_STREAM img.player__poster
/2024/05/NBC4-FAST-live-tile.jpg?quality=85&strip=all&res...22.4 KiB19.6 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/Baby-elephant-Linh-Mai-to-make-debut-at-National...19.4 KiB17.5 KiB
Los Angeles Lakers center Deandre Ayton (5) reacts on the court after a three-p… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47623895855-1080pnbcstations.jpg?quality=85&stri...30.9 KiB17.1 KiB
Missing 2-year-old boy found safe after mom was shot, killed in DC a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47634539811-1080pnbcstations.jpg?quality=85&stri...18.1 KiB15.0 KiB
Metro investigation underway after ‘prime mover' slams into train with about 30… div.video-playlist__container > div.player > div.player__overlay > img.player__poster
/2026/04/47639749664-1080pnbcstations.jpg?quality=85&stri...35.6 KiB13.6 KiB
Second Chances Job Fair: DC employers have opportunities a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47636279918-1080pnbcstations.jpg?quality=85&stri...15.0 KiB12.0 KiB
See it: Riders should expect delays after work vehicle hits Silver Line Metro t… a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47630143221-1080pnbcstations.jpg?quality=85&stri...12.2 KiB9.4 KiB
Watch div#home-fast-player > div.hp-livestream__title-container > div.hp-livestream__meta > img.hp-livestream__fast-logo
media.nbcwashington.com/2024/04/DC-web@3x.png?fit=861%2C72&quality=85&strip=all4.7 KiB4.6 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/DC_On_Light@2x.png?fit=518%2C80&quality=85&strip...6.1 KiB4.6 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 203 ms
URLTime Spent
nbcwashington.com/203 ms
www.nbcwashington.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: 190 ms 1.4 MiB
URLTransfer SizeEst Savings
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff419.9 KiB242.3 KiB
cdn.taboola.com/libtrc/nbcots-network/loader.js327.4 KiB213.0 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1209.9 KiB158.3 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB97.8 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff186.0 KiB76.4 KiB
mssl.fwmrm.net/libs/adm/7.2.1/AdManager.js91.8 KiB74.4 KiB
native.sharethrough.com/assets/sfp.js126.3 KiB64.2 KiB
ssl.p.jwpcdn.com/player/v/8.30.1/provider.hlsjs.js114.2 KiB56.9 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872157.1 KiB54.1 KiB
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js102.1 KiB53.4 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest157.1 KiB52.8 KiB
cdn.doubleverify.com/dv-measurements9761.js93.9 KiB34.7 KiB
static.criteo.net/js/ld/publishertag.js47.2 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
micro.rubiconproject.com/prebid/dynamic/24610.js46.1 KiB32.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.7 KiB
sb.scorecardresearch.com/c2/plugins/streamingtag_plugin_jwplayer.js?ver=1.0.253.0 KiB30.7 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.js1.5 s54 ms2.5 ms
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff669 ms555 ms33 ms
Unattributable505 ms144 ms0.0 ms
www.nbcwashington.com/465 ms30 ms11 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js331 ms286 ms18 ms
ssl.p.jwpcdn.com/player/v/8.30.1/provider.hlsjs.js102 ms77 ms8.8 ms
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.195 ms72 ms18 ms
cdn.taboola.com/libtrc/nbcots-network/loader.js91 ms49 ms32 ms
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js89 ms34 ms9.8 ms
js-agent.newrelic.com/nr-rum-1.313.1.min.js75 ms67 ms1.5 ms
cdn.doubleverify.com/dv-measurements9761.js70 ms58 ms8.1 ms
/wp-content/themes/nbc-station/static/video/videoHeartbea...65 ms55 ms2.6 ms
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...54 ms46 ms7.0 ms
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest54 ms32 ms11 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation2.1 s
Other1.9 s
Style & Layout295 ms
Script Parsing & Compilation256 ms
Rendering156 ms
Garbage Collection71 ms
Parse HTML & CSS56 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 79.7 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%} …19.9 KiB17.2 KiB
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6...21.9 KiB16.8 KiB
/wp-content/themes/nbc-station/client/build/css/jwPlayer....22.7 KiB16.2 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
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff420.2 KiB
xumo-drct-ch105-la3kc.fast.nbcuni.com/live/master_6/00512/master_6_05754.ts385.5 KiB
cdn.taboola.com/libtrc/nbcots-network/loader.js327.9 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
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff187.2 KiB
/v4/mapbox.mapbox-streets-v8,mapbox.mapbox-terrain-v2/7/3...173.5 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872157.5 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest157.4 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/dc-fire-truck.jpg?quality=85&strip=all&resize=85...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/dc-child-found-after-mother-killed-april-22-2026...
File - John Phelan speaks onstage during the Reindustrialize Conference 2025 on… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/JOHN-PHELAN-NAVY.jpg?quality=85&strip=all&resize...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47614221323-1080pnbcstations.jpg?quality=85&stri...
Los Angeles Lakers center Deandre Ayton (5) reacts on the court after a three-p… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47623895855-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/4MC-waymo-thumbnail-1200.jpg?quality=85&strip=al...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47612591739-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47640385750-1080pnbcstations.jpg?quality=85&stri...
Second Chances Job Fair: DC employers have opportunities a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47636279918-1080pnbcstations.jpg?quality=85&stri...
Forest bathing: Why to slow down and enjoy the woods a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47635593470-1080pnbcstations.jpg?quality=85&stri...
Missing 2-year-old boy found safe after mom was shot, killed in DC a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47634539811-1080pnbcstations.jpg?quality=85&stri...
See it: Riders should expect delays after work vehicle hits Silver Line Metro t… a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
/2026/04/47630143221-1080pnbcstations.jpg?quality=85&stri...
Watch div#home-fast-player > div.hp-livestream__title-container > div.hp-livestream__meta > img.hp-livestream__fast-logo
media.nbcwashington.com/2024/04/DC-web@3x.png?fit=861%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/DC_On_Light@2x.png?fit=518%2C80&quality=85&strip...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/Virginia-voters-approve-Democrats-redistricting-...
Spirit Airlines a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-2271644432.jpg?quality=85&strip=all&...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/morris-road-se-dc-shooting-scene.jpg?quality=85&...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47636279918-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47635593470-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47630143221-1080pnbcstations.jpg?quality=85&stri...
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...
“Glass Half Full” podcast featuring Scott Galloway. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/galloway.png?resize=850%2C478&quality=85&strip=all
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/Baby-elephant-Linh-Mai-to-make-debut-at-National...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/capital-one-arena-rendering-credit-monumental.jp...
Victor Wembanyama #1 of the San Antonio Spurs holds his head. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/GettyImages-2271894675-e1776829529433.jpg?qualit...
San Antonio Spurs forward Victor Wembanyama (1) reacts after falling to the gro… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47621671936-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/03/4MC-ice-dentention-thumbnail-1200.jpg?quality=85...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/03/4mc-youth-sports-1200-v2.jpg?quality=85&strip=al...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47299299186-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/03/Oberg-1.jpg?quality=85&strip=all&resize=850%2C478
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/03/46930049226-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/03/md-ice-facility-split-3.jpg?quality=85&strip=all...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47510746064-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47487206599-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47452495159-1080pnbcstations.jpg?quality=85&stri...
NBC4 Washington div.site-footer__wrapper > div.site-footer__identity > a.site-footer__logo > img
/2024/08/WRC_station_logo_light.png?fit=300%2C58&quality=...
NBC4 Washington div.flyout-nav > div.flyout-nav__logo > a > img
/2024/08/WRC_station_logo_light.png?fit=300%2C58&quality=...
The Ticketmaster app on a smartphone in front of the Live Nation logo arranged … a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
In this photo illustration a Yelp logo is seen on a 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
Abigail Spanberger, governor of Virginia, speaks. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Tourists walk past a banner with President Donald Trump hanging on the Departme… 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
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 3 user timings
●Avoid long main-thread tasks 11 long tasks found
●Avoid non-composited animations 1 animated element found
●Network Requests
●Network Round Trip Times 100 ms
●Server Backend Latencies 440 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 50 ms
●Avoid large layout shifts 8 layout shifts found
○INP breakdown
79

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
WASHINGTON DC 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
METRO (WMATA) 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
HEALTH div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
3 HOURS AGO div.story-card > div.story-card__text > div.story-card__meta > span.story-card__meta-time
TONIGHT 56° div > div.weather-widget > div.tonight-tomorrow > div.tonight
TOMORROW 80° 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
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
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
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__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.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.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.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.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.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.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.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

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
WASHINGTON DC div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON DC div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
METRO (WMATA) div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
HEALTH div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
VIRGINIA 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
SOUTHEAST DC div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
IN THE COMMUNITY div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
THE SCENE div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
METRO (WMATA) div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON DC div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
METRO (WMATA) div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FOOD & DRINK div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON DC div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NATIONAL ZOO div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
FOOD & DRINK 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
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
ARLINGTON COUNTY div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NATIONAL ZOO div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
CAPITAL ONE ARENA 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
NBA 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
4 MORE CONTEXT div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
4 MORE CONTEXT div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
4 MORE CONTEXT div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WORKING 4 YOU div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON DC div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
ARTIFICIAL INTELLIGENCE 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
DECISION 2026 div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
TRUMP ADMINISTRATION div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
DC FIRE AND EMS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
IMMIGRATION div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
NEWS4 I-TEAM div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
DC FIRE AND EMS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
IMMIGRATION div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
STORM TEAM4 div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON COMMANDERS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON COMMANDERS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON COMMANDERS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
WASHINGTON COMMANDERS div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link
Send Feedback div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1960845 > a
FCC Applications div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-2457801 > a
Terms of Service div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-3611817 > a
Privacy Policy div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1960824 > a
Advertise with us div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1960829 > a
CA Notice div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-2368191 > a
Ad Choices div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1960827 > 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
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●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
○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
Unload event listeners are deprecated and will be removed.
js-agent.newrelic.com/nr-rum-1.313.1.min.js line 1, col 17824

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
/identity/?vendor=idsv2&sv_cid=5274_04512&sv_pubid=NBCLOC...
Failed to load resource: the server responded with a status of 403 ()
api.rlcdn.com/api/identity?pid=2&rt=envelope
Failed to load resource: the server responded with a status of 451 ()
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.nbcuniversal.com/privacyhere

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
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
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
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`

Send Feedback