C — https://nbcchicago.com | BeaverCheck Audit

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

Room to improve — your 24.0s load time is above Google's 2.5s 'Good' threshold.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Well-optimized for search — your content is discoverable.

Solid infrastructure — fast server responses across the board.

Mostly compliant — a few items need attention.

Rich content metadata — your pages look great everywhere.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

WordPress · 625 peers

You 70

Avg 74

At average

0 50 100

Better than 5% of WordPress sites See full WordPress benchmark →

core-js · 1337 peers

You 70

Avg 72

At average

0 50 100

Better than 14% of core-js sites See full core-js benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

Page weighs 16.1 MB (4.1 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

1 image-in-link without alt text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Alt Text Quality

2 image(s) missing alt attribute

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Alt Text Quality

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Embed this badge

Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fnbcchicago.com)](https://beavercheck.com/results/3fd3a65e-8e88-4f24-9c73-041f12e8c19e)

HTML

<a href="https://beavercheck.com/results/3fd3a65e-8e88-4f24-9c73-041f12e8c19e"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fnbcchicago.com" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fnbcchicago.com

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 24.0s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

2 security gaps detected — browsers may warn visitors about your site.

Your LCP is 24.0s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

2 accessibility issues exclude users who rely on assistive technology.

Conversion Barriers

3 critical 3 warning

6 barrier(s) likely increasing bounce by ~30%.

Speed (2)

Page takes 24.0s to load

+12% bounce

Users abandon at ~3s — you're 21.5s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 7.5s

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (1)

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (1)

4 form field(s) without a label

+6% bounce

Screen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes

Fix: Associate every input with a visible <label for="…">; add autocomplete attributes

Content (1)

Content is hard to read

+2% bounce

Graduate-level reading difficulty — limits the addressable audience for product or blog pages

Fix: Shorten sentences; replace jargon with plain language; target Flesch ease ≥60

Navigation (1)

1 broken link(s) on the page

+2% bounce

Clicks land on 404s — trust drops and the session often ends

Fix: Fix or remove the broken destinations surfaced on the Content tab

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

$600 investment → $1.03/month returns + USD 157,500 risk avoided

Payback period: > 2 years First-year ROI: -98%

Investment

$600

6h · 5 findings

Monthly returns

$1.03 /mo

~$12 / year

Bandwidth savings $1.03

Regulatory risk avoided

USD 157,500

if kept compliant

ADA Title III USD 150,000
CCPA/CPRA USD 7,500

$100 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

$600

6.0 developer hours at $100/hr

Based on United States rates ($100/hr)

Quick wins

$100 2 fixes in ~60 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

$13,126 / month at risk

~$157,512 / year if left unfixed

Compliance Risk

$157,500

ADA Title IIICCPA/CPRA

No privacy policy link detected
CCPA/CPRA: USD 2,500 – USD 7,500
4 advertising/retargeting trackers detected
CCPA/CPRA: USD 2,500 – USD 7,500
Trackers detected but no cookie policy found
CCPA/CPRA: USD 2,500 – USD 7,500

+7 more

Bandwidth Waste

$1.03 /mo

12828.6 MB/mo × 0.080 USD/GB

Optimize transfer: save ~1.3 MB per page load
Saves $1.03/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

9.53 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

24.02 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

7.47 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.038

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

13.09 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

38.29 s

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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	50879.0 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	60322.0 s	187.2 KiB
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest	37550.0 s	157.5 KiB
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872	84078.0 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...	44482.0 s	92.5 KiB
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617	600.0 s	48.1 KiB
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js	86400.0 s	102.4 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
c2.taboola.com/nr/nbcots-wmaq-tv/newsroom.js	14400.0 s	17.6 KiB
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a0	84081.0 s	27.1 KiB
/logos/17e5cb00-ad90-47f5-a58d-77597d9d2c16/d44e374b-e570...	86400.0 s	8.1 KiB
cdn.cookielaw.org/consent/c608815b-66f8-47fb-b937-0488fb887af4/otSDKStub.js	86400.0 s	7.4 KiB
sb.scorecardresearch.com/beacon.js	86400.0 s	6.7 KiB
cdn.cookielaw.org/opt-out/otCCPAiab.js	86400.0 s	6.4 KiB
/js/v2/us1-36d67c9e4d591d4bb1bc1fa6c82ffcb9/mparticle.js?...	3600.0 s	1.6 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.7 KiB
/_r?sdk=web2.87.1&branch_key=key_live_cgXQ1xuvOLon4MtRJx1...	0.0 ms	667 B
geolocation.onetrust.com/cookieconsentpub/v1/geo/location/dnsfeed	0.0 ms	221 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.

	URL	Resource Size	Est 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 KiB	44.8 KiB
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/party-city-1.jpg?quality=85&strip=all&resize=850...	53.0 KiB	42.9 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%2C478	41.1 KiB	39.9 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 KiB	29.1 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 KiB	28.2 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 KiB	23.5 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 KiB	23.5 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 KiB	22.5 KiB
`a.story-card__thumbnail > div.imagewrap1 > div.imagewrap2 > img`	/2026/04/web-john-prevost-pope-leo-brother-4-22.png?resiz...	18.7 KiB	15.1 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 KiB	8.1 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

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	801 ms
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617	48.1 KiB	1.8 s
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	210.3 KiB	3.6 s
/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	603 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	151 ms
/wp-content/themes/nbc-station/client/build/css/home.6de9...	17.4 KiB	302 ms

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

URL	Time 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

URL	Transfer Size	Est Savings
cdn.cookielaw.org/opt-out/otCCPAiab.js	5.9 KiB	2.6 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: 330 ms 101.0 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	22.1 KiB
html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6...	21.2 KiB	17.8 KiB
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …	19.9 KiB	17.6 KiB
/wp-content/themes/nbc-station/client/build/css/home.6de9...	17.1 KiB	14.1 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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 4.4 s 1.3 MiB

URL	Transfer Size	Est Savings
/wxwidget.mosaic.js?cid=369362872&v=6eb3ef3d10ae586673ff	419.9 KiB	242.3 KiB
cdn.taboola.com/libtrc/nbcots-network/loader.js	327.4 KiB	213.1 KiB
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	209.9 KiB	158.3 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB	106.8 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
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js	102.1 KiB	53.4 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	47.3 KiB	29.5 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
/wp-content/themes/nbc-station/client/build/js/home.5b3b6...	32.8 KiB	21.3 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	11.9 s	2.2 s	185 ms
Unattributable	1.5 s	539 ms	0.0 ms
www.nbcchicago.com/	1.3 s	67 ms	17 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	716 ms	628 ms	51 ms
id.nbcuni.com/websdk/v2/identity-sdk.min.js?ver=0.1	358 ms	281 ms	54 ms
cdn.taboola.com/libtrc/nbcots-network/loader.js	336 ms	173 ms	113 ms
widgets.media.weather.com/wxwidget.loader.js?cid=369362872&ver=latest	314 ms	187 ms	63 ms
/chunks/wxwidget.mapDefaultLayout.js?v=4e77d53b1e6b2a3178a0	263 ms	201 ms	21 ms
/widgets/wxwidget.map.js?cid=369362872&memberid=1470&mapi...	253 ms	213 ms	35 ms
cdn.cookielaw.org/scripttemplates/202309.1.0/otBannerSdk.js	241 ms	161 ms	28 ms
widgets-blue.media.weather.com/wxwidget.loader.js?cid=369362872	193 ms	113 ms	51 ms
/wxwidget.common.js?cid=369362872&v=6eb3ef3d10ae586673ff	180 ms	17 ms	126 ms
assets.adobedtm.com/a2ef59fba8e9/3ba8c6b033ff/launch-6a742ce4ddf5.min.js	164 ms	117 ms	21 ms
/wp-content/themes/nbc-station/client/build/js/home.5b3b6...	141 ms	109 ms	17 ms
assets.adobedtm.com/ddcf247e4bf5/82484060cd13/launch-7d75747d0373.min.js	127 ms	109 ms	14 ms
/extensions/EPb56e12d7054b4acea984e91c910051cc/AppMeasure...	110 ms	105 ms	2.5 ms
/_r?sdk=web2.87.1&branch_key=key_live_cgXQ1xuvOLon4MtRJx1...	99 ms	73 ms	1.4 ms
native.sharethrough.com/assets/sfp.js	88 ms	37 ms	49 ms
js-sec.indexww.com/ht/p/185796-256714881512110.js	62 ms	37 ms	7.3 ms
www.googletagservices.com/tag/js/gpt.js	60 ms	52 ms	7.3 ms
ak.sail-horizon.com/spm/spm.v1.min.js?ver=202617	58 ms	46 ms	11 ms
/wp-content/themes/nbc-station/client/build/js/global.690...	53 ms	44 ms	3.4 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.

Category	Time Spent
Other	10.8 s
Script Evaluation	5.9 s
Script Parsing & Compilation	973 ms
Style & Layout	783 ms
Rendering	240 ms
Parse HTML & CSS	213 ms
Garbage Collection	212 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/m202604160201/pubads_impl.js	187.7 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	157.5 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
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

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.

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
/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 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

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 destination	Link Text
www.nbcuniversal.com/privacy	here

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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.27 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.47 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

279 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.020

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.85 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

7.66 s

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.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

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.

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.

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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

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

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`

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

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`

Results for https://nbcchicago.com

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Content (1)

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