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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

25

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=6eb3ef3d10ae586673ff50879.0 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 s126.4 KiB
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff60322.0 s187.2 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest37550.0 s157.5 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=36936287284078.0 s157.5 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
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...44482.0 s92.5 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 s54.0 KiB
static.criteo.net/js/ld/publishertag.js86400.0 s47.6 KiB
c2.taboola.com/nr/nbcots-wmaq-tv/newsroom.js14400.0 s17.6 KiB
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a084081.0 s27.1 KiB
/logos/17e5cb00-ad90-47f5-a58d-77597d9d2c16/d44e374b-e570...86400.0 s8.1 KiB
cdn.cookielaw.org/consent/c608815b-66f8-47fb-b937-0488fb887af4/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
/_r?sdk=web2.87.1&branch_key=key_live_cgXQ1xuvOLon4MtRJx1...0.0 ms667 B
geolocation.onetrust.com/cookieconsentpub/v1/geo/location/dnsfeed0.0 ms221 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:30.164 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.

URLResource SizeEst Savings
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 KiB44.8 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/party-city-1.jpg?quality=85&strip=all&resize=850...53.0 KiB42.9 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%2C47841.1 KiB39.9 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 KiB29.1 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 KiB28.2 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 KiB23.5 KiB
Huge rat steals the show during Cubs game at Wrigley Field div.video-module__column > div.video-module__video > div.video-playlist__placeholder > img
/2026/04/47639573449-1080pnbcstations.jpg?quality=85&stri...29.0 KiB23.5 KiB
div#homepage > div#template-hero > div.hero-background > img.hero-background__img div#homepage > div#template-hero > div.hero-background > img.hero-background__img
/2019/09/OTT-Chicago.png?fit=1920%2C1080&quality=85&strip...35.1 KiB22.5 KiB
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/web-john-prevost-pope-leo-brother-4-22.png?resiz...18.7 KiB15.1 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 KiB8.1 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

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.

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 753 ms
URLTime Spent
nbcchicago.com/753 ms
www.nbcchicago.com/0.0 ms

Diagnostics

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: 150 ms 2.6 KiB
URLTransfer SizeEst Savings
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.

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.

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
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff11.9 s2.2 s185 ms
Unattributable1.5 s539 ms0.0 ms
www.nbcchicago.com/1.3 s67 ms17 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js716 ms628 ms51 ms
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1358 ms281 ms54 ms
cdn.taboola.com/libtrc/nbcots-network/loader.js336 ms173 ms113 ms
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest314 ms187 ms63 ms
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a0263 ms201 ms21 ms
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...253 ms213 ms35 ms
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js241 ms161 ms28 ms
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872193 ms113 ms51 ms
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff180 ms17 ms126 ms
assets.adobedtm.com/a2ef59fba8e9/3ba8c6b033ff/launch-6a742ce4ddf5.min.js164 ms117 ms21 ms
/wp-content/themes/nbc-station/client/build/js/home.5b3b6...141 ms109 ms17 ms
assets.adobedtm.com/ddcf247e4bf5/82484060cd13/launch-7d75747d0373.min.js127 ms109 ms14 ms
/extensions/EPb56e12d7054b4acea984e91c910051cc/AppMeasure...110 ms105 ms2.5 ms
/_r?sdk=web2.87.1&branch_key=key_live_cgXQ1xuvOLon4MtRJx1...99 ms73 ms1.4 ms
native.sharethrough.com/assets/sfp.js88 ms37 ms49 ms
js-sec.indexww.com/ht/p/185796-256714881512110.js62 ms37 ms7.3 ms
www.googletagservices.com/tag/js/gpt.js60 ms52 ms7.3 ms
ak.sail-horizon.com/spm/spm.v1.min.js?ver=20261758 ms46 ms11 ms
/wp-content/themes/nbc-station/client/build/js/global.690...53 ms44 ms3.4 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
Other10.8 s
Script Evaluation5.9 s
Script Parsing & Compilation973 ms
Style & Layout783 ms
Rendering240 ms
Parse HTML & CSS213 ms
Garbage Collection212 ms

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
Huge rat steals the show during Cubs game at Wrigley Field div.video-module__column > div.video-module__video > div.video-playlist__placeholder > img
/2026/04/47639573449-1080pnbcstations.jpg?quality=85&stri...
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...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/47615726089-1080pnbcstations.jpg?quality=85&stri...
a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
/2026/04/web-john-prevost-pope-leo-brother-4-22.png?resiz...
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...
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 portrait of the late Celeste Rivas Hernandez is shown during a press briefing… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
State Capitol of Illinois in Springfield a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
CHICAGO, ILLINOIS – APRIL 10: Head coach Billy Donovan of the Chicago Bulls loo… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Los Angeles Lakers center Deandre Ayton (5) reacts on the court after a three-p… a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
President Donald Trump a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
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...
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...
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&...
Richardson Farm tulip fest opens for season a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
Crash outside Buffalo Grove High School leaves staffer with life-threatening in… a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
Lockport a cappella group gets big sendoff ahead of international competition a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
CTA abruptly removes unarmed guards as safety plans shift to police officers a > div.video-thumbnail__video > div.video-thumbnail__image-wrapper > img
Rachel Reid, Jacob Tierney a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
David Howard Thornton a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
George W. Bush Jenna Bush Hager a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Alan Osmond. a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Shigella bacteria, illustration a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
Pollen_Problems a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img
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
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 1 user timing
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 3 animated elements found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 100 ms
Server Backend Latencies 470 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 10 ms
Avoid large layout shifts 12 layout shifts found
INP breakdown
85

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
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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Richardson Farm tulip fest opens for season a > div.video-thumbnail__video > div.video-thumbnail__info > h4.video-thumbnail__video-title

These are opportunities to improve keyboard navigation in your application.

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

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
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
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
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
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

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.
Form elements have associated labels
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
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
Document has a main landmark.
Deprecated ARIA roles were not used
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
`<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.
96

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.

SourceDescription
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
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
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
Failed to load resource: the server responded with a status of 403 ()
Failed to load resource: the server responded with a status of 451 ()
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
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
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 are crawlable
robots.txt is valid
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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