Lighthouse Desktop

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

Request	Cache TTL	Transfer Size
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff	50849.0 s	420.2 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	600.0 s	210.3 KiB
native.sharethrough.com/assets/sfp.js	3600.0 s	126.4 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff	60292.0 s	187.2 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest	37521.0 s	157.4 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872	84048.0 s	157.5 KiB
assets.adobedtm.com/a2ef59fba8e9/3ba8c6b033ff/launch-6a742ce4ddf5.min.js	3600.0 s	68.9 KiB
assets.adobedtm.com/ddcf247e4bf5/82484060cd13/launch-7d75747d0373.min.js	3600.0 s	65.0 KiB
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...	44452.0 s	92.5 KiB
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617	600.0 s	48.1 KiB
cdn.branch.io/branch-latest.min.js	300.0 s	23.5 KiB
js-sec.indexww.com/ht/p/185796-256714881512110.js	14400.0 s	32.6 KiB
sb.scorecardresearch.com/internal-c2/default/streamingtag_plugin_jwplayer.js	86400.0 s	54.0 KiB
static.criteo.net/js/ld/publishertag.js	86400.0 s	47.6 KiB
/2026/04/47623895855-1080pnbcstations.jpg?quality=85&stri...	86400.0 s	31.2 KiB
c2.taboola.com/nr/nbcots-wmaq-tv/newsroom.js	14400.0 s	17.6 KiB
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a0	84051.0 s	27.1 KiB
sb.scorecardresearch.com/beacon.js	86400.0 s	6.7 KiB
/js/v2/us1-36d67c9e4d591d4bb1bc1fa6c82ffcb9/mparticle.js?...	3600.0 s	1.6 KiB
/_r?sdk=web2.87.1&branch_key=key_live_cgXQ1xuvOLon4MtRJx1...	0.0 ms	667 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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:55.847 source:map[type:text value:[unattributed]]]]

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.

	URL	Resource Size	Est Savings
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/03/hrt-hormone-patch-menopause.png?resize=850%2C478...	63.2 KiB	57.0 KiB
Shigella bacteria, illustration `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2023/02/GettyImages-1201441227.jpg?quality=85&strip=all&...	60.4 KiB	54.5 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img.manual-image `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img.manual-image`	/2024/06/NBC-5-Chicago-News-FAST-Streaming_03-1.jpg?quali...	55.4 KiB	49.9 KiB
David Howard Thornton `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/GettyImages-2233786561.jpg?quality=85&strip=all&...	54.6 KiB	49.2 KiB
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/party-city-1.jpg?quality=85&strip=all&resize=850...	53.0 KiB	47.8 KiB
Four students at Buffalo Grove High School were killed in a car crash Tuesday n… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	media.nbcchicago.com/2026/04/BG-HS.jpg?quality=85&strip=all&resize=850%2C478	41.1 KiB	37.0 KiB
Rachel Reid, Jacob Tierney `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	media.nbcmiami.com/2026/04/image-47-4.jpg?quality=85&strip=all&resize=850%2C478	40.0 KiB	36.1 KiB
COLUMBIA, MO – NOVEMBER 08: Missouri Tigers defensive end Zion Young (9) in the… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/GettyImages-2245495920.jpg?quality=85&strip=all&...	35.9 KiB	32.4 KiB
COLUMBIA, MO – NOVEMBER 08: Texas A&M Aggies defensive end Cashius Howell (9) i… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/GettyImages-2245498796.jpg?quality=85&strip=all&...	34.9 KiB	31.4 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 KiB	30.4 KiB
Pollen_Problems `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2019/09/Pollen_Problems.jpg?quality=85&strip=all&resize=...	25.6 KiB	23.1 KiB
A U.S. Customs and Border Protection logo `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/01/GettyImages-2238879045-e1767918490310.jpg?qualit...	24.2 KiB	21.8 KiB
Alan Osmond. `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/ALAN-OSMOND.jpg?quality=85&strip=all&resize=850%...	23.2 KiB	20.9 KiB
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/03/menopause-meds.png?resize=850%2C478&quality=85&s...	22.7 KiB	20.5 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 KiB	17.1 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 KiB	12.2 KiB
Crash outside Buffalo Grove High School leaves staffer with life-threatening in… `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47629957018-1080pnbcstations.jpg?quality=85&stri...	14.9 KiB	11.9 KiB
Huge rat steals the show during Cubs game at Wrigley Field `div.video-playlist__container > div.player > div.player__overlay > img.player__poster`	/2026/04/47639573449-1080pnbcstations.jpg?quality=85&stri...	29.0 KiB	11.1 KiB
Richardson Farm tulip fest opens for season `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47634759613-1080pnbcstations.jpg?quality=85&stri...	13.5 KiB	10.5 KiB
CTA abruptly removes unarmed guards as safety plans shift to police officers `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47621942758-1080pnbcstations.jpg?quality=85&stri...	12.6 KiB	9.7 KiB
Lockport a cappella group gets big sendoff ahead of international competition `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47622113202-1080pnbcstations.jpg?quality=85&stri...	9.5 KiB	7.3 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/Chicago_On_Light@3x-1.png?fit=429%2C120&quality=...	9.1 KiB	5.0 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

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.

URL	Transfer Size	Duration
sb.scorecardresearch.com/internal-c2/default/streamingtag_plugin_jwplayer.js	54.0 KiB	251 ms
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617	48.1 KiB	442 ms
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	210.3 KiB	665 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 KiB	82 ms
/wp-content/themes/nbc-station/client/build/css/unifiedId...	3.3 KiB
www.nbcchicago.com/wp-content/plugins/ad-layers-nbc/js/ad-layers.js?ver=0.0.10	813 B
/wp-content/themes/nbc-station/client/build/css/home.6de9...	17.4 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: 205 ms

URL	Time Spent
nbcchicago.com/	205 ms
www.nbcchicago.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 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: 20 ms 75.2 KiB

URL	Transfer Size	Est Savings
@charset "UTF-8";@import"https://fonts.googleapis.com/css2?family=Roboto:wght@700,500,300&display=s…	29.4 KiB	29.4 KiB
/wp-content/themes/nbc-station/client/build/css/jwPlayer....	22.7 KiB	18.8 KiB
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6...	21.2 KiB	16.5 KiB
/wp-content/themes/nbc-station/client/build/css/home.6de9...	17.1 KiB	10.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 160 ms 1.2 MiB

URL	Transfer Size	Est Savings
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff	419.9 KiB	241.9 KiB
cdn.taboola.com/libtrc/nbcots-network/loader.js	327.4 KiB	212.8 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	209.9 KiB	158.3 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	187.4 KiB	106.0 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff	186.0 KiB	76.4 KiB
native.sharethrough.com/assets/sfp.js	125.9 KiB	64.0 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872	157.1 KiB	54.1 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest	157.1 KiB	52.8 KiB
sb.scorecardresearch.com/c2/plugins/streamingtag_plugin_jwplayer.js?ver=1.0.2	53.7 KiB	43.1 KiB
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...	91.9 KiB	32.9 KiB
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617	47.7 KiB	32.5 KiB
micro.rubiconproject.com/prebid/dynamic/24610.js	46.1 KiB	32.1 KiB
static.criteo.net/js/ld/publishertag.js	47.2 KiB	29.7 KiB
assets.adobedtm.com/ddcf247e4bf5/82484060cd13/launch-7d75747d0373.min.js	64.7 KiB	28.0 KiB
/wp-content/themes/nbc-station/static/video/videoHeartbea...	33.5 KiB	26.6 KiB
assets.adobedtm.com/a2ef59fba8e9/3ba8c6b033ff/launch-6a742ce4ddf5.min.js	68.7 KiB	23.4 KiB
/wp-content/themes/nbc-station/client/build/js/jwPlayer.5...	27.4 KiB	21.4 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.

URL	Total CPU Time	Script Evaluation	Script Parse
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff	2.6 s	547 ms	37 ms
www.nbcchicago.com/	505 ms	21 ms	4.4 ms
Unattributable	391 ms	133 ms	0.0 ms
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	369 ms	331 ms	15 ms
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	93 ms	70 ms	16 ms
cdn.taboola.com/libtrc/nbcots-network/loader.js	77 ms	45 ms	29 ms
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a0	70 ms	52 ms	5.4 ms
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest	60 ms	36 ms	12 ms
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...	55 ms	46 ms	7.3 ms
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872	53 ms	33 ms	12 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.

Category	Time Spent
Other	2.4 s
Script Evaluation	1.6 s
Style & Layout	271 ms
Script Parsing & Compilation	212 ms
Rendering	115 ms
Garbage Collection	74 ms
Parse HTML & CSS	54 ms

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff	420.2 KiB
cdn.taboola.com/libtrc/nbcots-network/loader.js	327.9 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	210.3 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	187.4 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff	187.2 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872	157.5 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest	157.4 KiB
/v4/mapbox.mapbox-streets-v8,mapbox.mapbox-terrain-v2/7/3...	135.3 KiB
native.sharethrough.com/assets/sfp.js	126.4 KiB
/v4/mapbox.mapbox-streets-v8,mapbox.mapbox-terrain-v2/7/3...	104.3 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/web-john-prevost-pope-leo-brother-4-22.png?resiz...
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...
State Capitol of Illinois in Springfield `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2023/05/GettyImages-129313580-1.jpg?quality=85&strip=all...
CHICAGO, ILLINOIS – APRIL 10: Head coach Billy Donovan of the Chicago Bulls loo… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/GettyImages-2270761176.jpg?quality=85&strip=all&...
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`	/2026/04/47615726089-1080pnbcstations.jpg?quality=85&stri...
Richardson Farm tulip fest opens for season `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47634759613-1080pnbcstations.jpg?quality=85&stri...
Crash outside Buffalo Grove High School leaves staffer with life-threatening in… `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47629957018-1080pnbcstations.jpg?quality=85&stri...
Lockport a cappella group gets big sendoff ahead of international competition `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47622113202-1080pnbcstations.jpg?quality=85&stri...
CTA abruptly removes unarmed guards as safety plans shift to police officers `a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img`	/2026/04/47621942758-1080pnbcstations.jpg?quality=85&stri...
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/Chicago_On_Light@3x-1.png?fit=429%2C120&quality=...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img.manual-image `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img.manual-image`	/2024/06/NBC-5-Chicago-News-FAST-Streaming_03-1.jpg?quali...
Four students at Buffalo Grove High School were killed in a car crash Tuesday n… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	media.nbcchicago.com/2026/04/BG-HS.jpg?quality=85&strip=all&resize=850%2C478
A U.S. Customs and Border Protection logo `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/01/GettyImages-2238879045-e1767918490310.jpg?qualit...
Spirit Airlines `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/GettyImages-2271644432.jpg?quality=85&strip=all&...
COLUMBIA, MO – NOVEMBER 08: Texas A&M Aggies defensive end Cashius Howell (9) i… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/GettyImages-2245498796.jpg?quality=85&strip=all&...
COLUMBIA, MO – NOVEMBER 08: Missouri Tigers defensive end Zion Young (9) in the… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/GettyImages-2245495920.jpg?quality=85&strip=all&...
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/party-city-1.jpg?quality=85&strip=all&resize=850...
Rachel Reid, Jacob Tierney `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	media.nbcmiami.com/2026/04/image-47-4.jpg?quality=85&strip=all&resize=850%2C478
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...
Alan Osmond. `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/ALAN-OSMOND.jpg?quality=85&strip=all&resize=850%...
Shigella bacteria, illustration `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2023/02/GettyImages-1201441227.jpg?quality=85&strip=all&...
Pollen_Problems `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2019/09/Pollen_Problems.jpg?quality=85&strip=all&resize=...
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/03/menopause-meds.png?resize=850%2C478&quality=85&s...
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/03/hrt-hormone-patch-menopause.png?resize=850%2C478...
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/web-missing-persons-day-4-20.png?resize=850%2C47...
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/47510790239-1080pnbcstations.jpg?quality=85&stri...
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/rseponde-bill.png?resize=850%2C478&quality=85&st...
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/web-chicago-park-district-camps-4-15.png?resize=...
NBC Chicago `div.site-footer__wrapper > div.site-footer__identity > a.site-footer__logo > img`	/2024/08/WMAQ_station_logo_light.png?fit=276%2C58&quality...
NBC Chicago `div.flyout-nav > div.flyout-nav__logo > a > img`	/2024/08/WMAQ_station_logo_light.png?fit=276%2C58&quality...
Apr 19, 2026; West Sacramento, California, USA; Chicago White Sox first baseman… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`
SEATTLE, WASHINGTON – SEPTEMBER 01: Rickea Jackson #2 of the Los Angeles Sparks… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`
Victor Wembanyama #1 of the San Antonio Spurs holds his head. `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`
San Antonio Spurs forward Victor Wembanyama (1) reacts after falling to the gro… `a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`
President Donald Trump `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

●Minify JavaScript

●User Timing marks and measures 1 user timing

●Avoid long main-thread tasks 9 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 450 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 40 ms

●Avoid large layout shifts 9 layout shifts found

○INP breakdown

○Avoid non-composited animations

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.

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`
BUFFALO GROVE `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
49 MINUTES AGO `div.story-card > div.story-card__text > div.story-card__meta > span.story-card__meta-time`
BUFFALO GROVE `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
1 HOUR AGO `div.story-card > div.story-card__text > div.story-card__meta > span.story-card__meta-time`
CHICAGO FORECAST `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
1 HOUR AGO `div.story-card > div.story-card__text > div.story-card__meta > span.story-card__meta-time`
TONIGHT 50° `div > div.weather-widget > div.tonight-tomorrow > div.tonight`
TOMORROW 81° `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`
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`

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.section-content--secondary > div.top-stories-hero__secondary-column-1 > div.story-card > a.story-card__thumbnail `div.section-content--secondary > div.top-stories-hero__secondary-column-1 > 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.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`
`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
POPE LEO XIV `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
BUFFALO GROVE `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
BUFFALO GROVE `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
CHICAGO FORECAST `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
BUFFALO GROVE `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
O'HARE AIRPORT `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`
NFL DRAFT `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
NFL DRAFT `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`
BUFFALO GROVE `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`
LAWSUITS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
SPRING `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
O'HARE AIRPORT `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
BUFFALO GROVE `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`
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`
CELEBRITY NEWS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
BEARS STADIUM `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
HEALTH & WELLNESS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
HEALTH & WELLNESS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
HEALTH & WELLNESS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
HEALTH & WELLNESS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
CHICAGO BULLS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
CHICAGO WHITE SOX `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
WNBA `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`
IRAN `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
NBC 5 INVESTIGATES `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
NBC 5 INVESTIGATES `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
CONSUMER `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
NBC 5 RESPONDS `div.story-card__text > div.story-card__meta > span.story-card__meta-tag > a.story-card__meta-tag-link`
CHICAGO PARK DISTRICT `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-1970487 > a`
FCC Applications `div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-2361254 > a`
Terms of Service `div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-3432178 > a`
Privacy Policy `div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1970475 > a`
Advertise with us `div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1970477 > a`
CA Notice `div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-2309227 > a`
Ad Choices `div.site-footer__wrapper > ul#menu-secondary-footer > li#menu-item-1970476 > 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-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●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.

●`button`, `link`, and `menuitem` elements have accessible names

●`[aria-hidden="true"]` elements do not contain focusable descendents

●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

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`[aria-*]` attributes match their roles

○ARIA attributes are used as specified for the element's role

○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 use only permitted ARIA attributes

○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

○`[aria-*]` attributes have valid values

○`[aria-*]` attributes are valid and not misspelled

○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

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○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.

Best Practices

General

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.

Source	Description
www.nbcchicago.com/	`Access to script at 'https://cdn.cookielaw.org/consent/c608815b-66f8-47fb-b937-0488fb887af4/otSDKStub.js' from origin 'https://www.nbcchicago.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
/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
cdn.cookielaw.org/consent/c608815b-66f8-47fb-b937-0488fb887af4/otSDKStub.js	`Failed to load resource: net::ERR_FAILED`
/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 ()`
/wp-content/themes/nbc-station/client/build/js/home.5b3b6... line 1, col 53444	`TypeError: Cannot read properties of undefined (reading 'getAttribute') at https://www.nbcchicago.com/wp-content/themes/nbc-station/client/build/js/home.5b3b6c9f8371f5116579.bundle.min.js:2:53445`
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 deprecated APIs

●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

SEO

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

Content Best Practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#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`
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`

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`