Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
www.nbc.com/generetic/generated/generetic.4de6b8d2e256b882e8f3.js	134.0 s	622.4 KiB
www.nbc.com/generetic/generated/generetic.47e9e8df145539694627.js	26.0 s	275.3 KiB
www.nbc.com/generetic/generated/generetic.aee12a093cbf23fc187f.css	142.0 s	130.9 KiB
assets.adobedtm.com/a2ef59fba8e9/9c7a708dbcb2/launch-678397df18e0.min.js	3600.0 s	79.1 KiB
www.nbc.com/generetic/generated/fonts/AcuminProSemiCondensed_700.woff2	82.0 s	46.4 KiB
www.nbc.com/generetic/generated/fonts/AcuminPro_400.woff2	125.0 s	46.2 KiB
www.nbc.com/generetic/generated/fonts/AcuminPro_600.woff2	233.0 s	46.7 KiB
www.nbc.com/generetic/generated/fonts/AcuminPro_200.woff2	233.0 s	45.5 KiB
cdn.cookielaw.org/scripttemplates/202311.1.0/otBannerSdk.js	86400.0 s	103.0 KiB
www.nbc.com/generetic/generated/chunks/1944.f06c416df55bf341a86b.js	254.0 s	26.4 KiB
cdn.branch.io/branch-latest.min.js	300.0 s	23.5 KiB
www.nbc.com/generetic/generated/fonts/MontserratRegular.woff2	256.0 s	16.2 KiB
www.nbc.com/generetic/generated/fonts/MontserratBold.woff2	256.0 s	16.1 KiB
www.nbc.com/generetic/generated/chunks/4577.5cff97b09ba86735c8b6.js	35.0 s	15.5 KiB
www.nbc.com/generetic/generated/fonts/nbciconfont.woff2	95.0 s	15.6 KiB
cdn-media.brightline.tv/sdk/js/nbcu/brightline.webkit.sdk.2.2.3.js	0.0 ms	11.7 KiB
www.nbc.com/generetic/generated/chunks/8817.10b93d60c41cad6f391d.js	104.0 s	6.2 KiB
s.go-mpulse.net/boomerang/D4A86-3GRNZ-GKQHN-U4RB3-Y7PUQ	604800.0 s	56.6 KiB
cdn.cookielaw.org/scripttemplates/202311.1.0/otGPP.js	86400.0 s	11.9 KiB
www.nbc.com/generetic/generated/images/4fac8d8aaa7d8798a512dac0322d8d14.png	19242.0 s	7.1 KiB
www.nbc.com/generetic/generated/images/88e243732529f35b45f990fcb2125014.png	12831.0 s	5.3 KiB
cdn.cookielaw.org/consent/ea571e64-7f5b-48d8-8d41-f96b1ddd4838/otSDKStub.js	86400.0 s	9.0 KiB
/logos/17e5cb00-ad90-47f5-a58d-77597d9d2c16/ffe22c24-b5ec...	86400.0 s	8.2 KiB
www.nbc.com/generetic/generated/chunks/8460.dcec6fadd8f81a0c2c8e.js	51.0 s	2.5 KiB
www.nbc.com/generetic/generated/generetic.795899cb87676149668c.js	183.0 s	1.7 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.9 KiB
/_r?sdk=web2.87.1&branch_key=key_live_clvNTn0ILAmUSJwrqVD...	0.0 ms	669 B
/a2ef59fba8e9/9c7a708dbcb2/d3d66595eddb/RCde3a0129d7334bb...	3600.0 s	592 B
/track/cmb/generic?ttd_pid=s2p4q8r&ttd_puid=esid%3D53277%...	0.0 ms	254 B
/a?v=3&t=l&pid=941714800&rv=64h1&tag_exp=0~115938465~1159...	0.0 ms	59 B
www.nbc.com/generetic/scripts/ads.js	14618.0 s	75 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.45708899999999997] map[node:map[boundingRect:map[bottom:553 height:448 left:754 right:1078 top:105 width:324] lhId:page-14-DIV nodeLabel:Upcoming on NBC, Live at 5:00 PM Tuesday April 21st, NBA, Trail Blazers vs. Spu… path:1,HTML,1,BODY,1,DIV,0,DIV,2,MAIN,1,DIV,0,DIV,0,DIV,0,DIV,4,DIV,2,DIV selector:div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__container > div.slideshow-f3__slide snippet:<div class="slideshow-f3__slide upcoming-prev-slide upcoming-next-slide" aria-label="Upcoming on NBC, Live at 5:00 PM Tuesday April 21st, NBA, Trail Blazers vs…" role="group" aria-roledescription="slide" aria-labelledby="slide-item-0"> type:node] score:0.268823] map[node:map[boundingRect:map[bottom:918 height:273 left:0 right:412 top:645 width:412] lhId:page-17-SECTION nodeLabel:Latest Episodes EXPIRING TODAY S1 E72 | 04/21/26 EXPIRING TODAY S8 E151 | 04/21… path:1,HTML,1,BODY,1,DIV,0,DIV,2,MAIN,1,DIV,0,DIV,1,DIV,0,SECTION selector:div.responsive-app__wrapper > div.home-page > div.landing-page__sections > section.shelf snippet:<section class="shelf shelf--VideoTile shelf--16-9"> type:node] score:0.095921] map[node:map[boundingRect:map[bottom:823 height:76 left:0 right:412 top:747 width:412] lhId:page-16-IFRAME nodeLabel:Branch Banner Frame path:1,HTML,1,BODY,0,IFRAME selector:body.branch-banner-is-active > iframe#branch-banner-iframe snippet:<iframe src="about:blank" scrolling="no" id="branch-banner-iframe" class="branch-animation" aria-label="Branch Banner Frame" style="overflow: hidden; box-shadow: none;"> type:node] score:0.092345]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[reflowTime:38.032 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
Trail Blazers vs. Spurs `div.slide-f3__container > div.slide-f3__title-logo > div.brand-logo > img.brand-logo__image`	/files/2026-04/nba_playoff_logo_small.png?impolicy=nbc_co...	42.2 KiB	40.8 KiB
TODAY `a.tile > article.tile__content > div.tile__thumbnail > img`	img.nbc.com/files/TODAY_3rd_Hour.jpg?impolicy=nbc_com&imwidth=480&imdensity=1	41.3 KiB	35.5 KiB
Late Night with Seth Meyers `a.tile > article.tile__content > div.tile__thumbnail > img`	img.nbc.com/files/042026_lnsmfep.jpg?impolicy=nbc_com&imwidth=480&imdensity=1	40.3 KiB	34.5 KiB
Nightly News with Tom Llamas `a.tile > article.tile__content > div.tile__thumbnail > img`	/files/NBC_Nightly_News_with_Tom_Llamas.jpg?impolicy=nbc_...	29.5 KiB	23.7 KiB
TODAY `a.tile > article.tile__content > div.tile__thumbnail > img`	/files/TODAY_with_Jenna___Sheinelle.jpg?impolicy=nbc_com&...	26.4 KiB	20.6 KiB
TODAY `a.tile > article.tile__content > div.tile__thumbnail > img`	/files/TODAY_-_Monday_to_Friday.jpg?impolicy=nbc_com&imwi...	25.8 KiB	20.0 KiB
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2026-04/nba_25-26_rockets_vs_lakers_2048_x_1152_sm...	37.5 KiB	16.4 KiB
NBC Sports Philadelphia `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-philadelphia-logo-white-378x300....	15.9 KiB	15.8 KiB
NBC Sports California `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-california-logo-white-378x300.pn...	15.4 KiB	15.3 KiB
NBC News NOW `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-01/nbc-news-now_white_stacked.png?impolicy=nb...	14.9 KiB	14.8 KiB
NBC Sports Bay Area `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-bay-area-logo-white-382x300.png?...	14.9 KiB	14.8 KiB
NBC Sports Boston `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-boston-logo-white-375x300.png?im...	14.7 KiB	14.6 KiB
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2026-04/nba_25-26_blazers_v_spurs_2048_x_1152_sm_d...	35.0 KiB	13.9 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-13-IMG

nodeLabel: div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img

path: 1,HTML,1,BODY,1,DIV,0,DIV,2,MAIN,1,DIV,0,DIV,0,DIV,0,DIV,4,DIV,7,DIV,1,DIV,0,PICTURE,2,IMG

selector: div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img

snippet: <img src="https://img.nbc.com/files/2026-04/web_dl_1.jpg?impolicy=nbc_com&im=Resize,…" alt="">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
/files/2026-04/nba_25-26_blazers_v_spurs_2048_x_1152_sm_d...	http/1.1
/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...	http/1.1
/files/2026-04/nba_playoff_logo_small.png?impolicy=nbc_co...	http/1.1
/files/2026-04/nba_25-26_rockets_vs_lakers_2048_x_1152_sm...	http/1.1
/files/2025-09/onechicago-2025-web-dynamiclead-desktop-19...	http/1.1
/files/2025-09/onechicago-2025-logo-white-900x359.png?imp...	http/1.1
img.nbc.com/files/2025-08/streamon_cta_2.png	http/1.1
/files/2025-09/laworder_svu_s27-web-dynamiclead-desktop-1...	http/1.1
/files/2025-09/laworder_svu_s27-logo-white-900x300.png?im...	http/1.1
/files/2025-12/huntingparty_s2-web-dynamiclead-desktop-19...	http/1.1
/files/2025-12/huntingparty_s2-logo-white-440x428.png?imp...	http/1.1
/files/2026-04/web_dl_1.jpg?impolicy=nbc_com&im=Resize,wi...	http/1.1
/files/2025-07/pck_attribution_white.png?impolicy=nbc_com...	http/1.1
/files/2026-04/miniature-wife-logo-white-653x428.png?impo...	http/1.1
/files/2025-10/peacock_preview_logo_white.png?impolicy=nb...	http/1.1
/files/images/2019/4/25/Universo-logos-templateUniverso-L...	http/1.1
/files/2024-08/nbcsports-boston-logo-white-375x300.png?im...	http/1.1
/files/2024-08/nbcsports-philadelphia-logo-white-378x300....	http/1.1
/files/2024-08/nbcsports-california-logo-white-378x300.pn...	http/1.1
/files/2024-08/nbcsports-bay-area-logo-white-382x300.png?...	http/1.1
/files/2024-08/nbcsports_white_logo-425x300.png?impolicy=...	http/1.1
/files/images/2019/3/11/Bravo-Logo-All-platform-AssetsBra...	http/1.1
/files/2025-10/bravo_color_logo.png?impolicy=nbc_com&imwi...	http/1.1
/files/images/2019/4/16/Telemundo-Logo-White-360x300.png?...	http/1.1
/files/2025-10/telemundo_color_logo_white_text.png?impoli...	http/1.1
/files/2025-10/universo_color_logo_white_text.png?impolic...	http/1.1
img.nbc.com/files/images/2021/6/29/peacock_preview.png	http/1.1
img.nbc.com/files/images/2021/6/29/elements-search-icon.png	http/1.1
img.nbc.com/files/images/2021/6/30/elements-search-rollover-hover.png	http/1.1
img.nbc.com/files/images/2021/6/29/elements-search-icon-active.png	http/1.1
/files/2024-01/nbc-news-now_white_stacked.png?impolicy=nb...	http/1.1
/files/2024-11/nbcsportsnow_white_logo-425x300.png?impoli...	http/1.1
/files/TODAY_with_Jenna___Sheinelle.jpg?impolicy=nbc_com&...	http/1.1
img.nbc.com/files/TODAY_3rd_Hour.jpg?impolicy=nbc_com&imwidth=480&imdensity=1	http/1.1
/files/TODAY_-_Monday_to_Friday.jpg?impolicy=nbc_com&imwi...	http/1.1
/files/NBC_Nightly_News_with_Tom_Llamas.jpg?impolicy=nbc_...	http/1.1
img.nbc.com/files/042026_lnsmfep.jpg?impolicy=nbc_com&imwidth=480&imdensity=1	http/1.1

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

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

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

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: 781 ms

URL	Time Spent
nbc.com/	781 ms
www.nbc.com/	0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
Upcoming on NBC, Live at 5:00 PM Tuesday April 21st, NBA, Trail Blazers vs. Spu… `div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__container > div.slideshow-f3__slide`	0.269
Latest Episodes EXPIRING TODAY S1 E72 \| 04/21/26 EXPIRING TODAY S8 E151 \| 04/21… `div.responsive-app__wrapper > div.home-page > div.landing-page__sections > section.shelf`	0.096
Branch Banner Frame `body.branch-banner-is-active > iframe#branch-banner-iframe`	0.092

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

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: 1.9 s 318.7 KiB

URL	Transfer Size	Est Savings
www.nbc.com/generetic/generated/generetic.4de6b8d2e256b882e8f3.js	621.9 KiB	217.1 KiB
www.nbc.com/generetic/generated/generetic.47e9e8df145539694627.js	274.8 KiB	65.4 KiB
mps.nbcuni.com/fetch/ext/load-nbc-web.js?nowrite=2	62.8 KiB	20.4 KiB
www.nbc.com/generetic/generated/chunks/1944.f06c416df55bf341a86b.js	26.4 KiB	5.9 KiB
cdn-media.brightline.tv/sdk/js/nbcu/brightline.webkit.sdk.2.2.3.js	10.9 KiB	5.9 KiB
www.nbc.com/generetic/generated/chunks/4577.5cff97b09ba86735c8b6.js	15.5 KiB	4.1 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: 750 ms 145.4 KiB

URL	Transfer Size	Est Savings
www.nbc.com/generetic/generated/generetic.aee12a093cbf23fc187f.css	130.4 KiB	125.6 KiB
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …	20.2 KiB	19.8 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 4.0 s 1018.8 KiB

URL	Transfer Size	Est Savings
www.nbc.com/generetic/generated/generetic.4de6b8d2e256b882e8f3.js	621.7 KiB	292.8 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB	127.7 KiB
www.nbc.com/generetic/generated/generetic.47e9e8df145539694627.js	274.8 KiB	97.9 KiB
accounts.google.com/gsi/client	95.5 KiB	68.5 KiB
www.googletagmanager.com/gtag/js?id=4480978	84.8 KiB	64.0 KiB
www.googletagmanager.com/gtag/js?id=4480978	84.8 KiB	64.0 KiB
cdn.cookielaw.org/scripttemplates/202311.1.0/otBannerSdk.js	102.8 KiB	55.9 KiB
www.googletagmanager.com/gtag/js?id=12823834	84.7 KiB	55.5 KiB
www.googletagmanager.com/gtag/js?id=4480978	84.8 KiB	51.9 KiB
assets.adobedtm.com/a2ef59fba8e9/9c7a708dbcb2/launch-678397df18e0.min.js	78.9 KiB	46.4 KiB
mps.nbcuni.com/fetch/ext/load-nbc-web.js?nowrite=2	62.8 KiB	41.2 KiB
s.go-mpulse.net/boomerang/D4A86-3GRNZ-GKQHN-U4RB3-Y7PUQ	56.4 KiB	31.2 KiB
cdn.popupsmart.com/bundle.js	33.6 KiB	21.8 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
www.nbc.com/generetic/generated/chunks/1944.f06c416df55bf341a86b.js	3.4 s	3.2 s	18 ms
www.nbc.com/generetic/generated/generetic.4de6b8d2e256b882e8f3.js	2.7 s	2.1 s	320 ms
www.nbc.com/	1.4 s	82 ms	122 ms
Unattributable	1.3 s	64 ms	0.0 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	397 ms	323 ms	59 ms
mps.nbcuni.com/fetch/ext/load-nbc-web.js?nowrite=2	350 ms	283 ms	49 ms
assets.adobedtm.com/a2ef59fba8e9/9c7a708dbcb2/launch-678397df18e0.min.js	286 ms	227 ms	48 ms
cdn.cookielaw.org/scripttemplates/202311.1.0/otBannerSdk.js	267 ms	196 ms	52 ms
cdn.branch.io/branch-latest.min.js	246 ms	167 ms	8.1 ms
www.googletagmanager.com/gtag/js?id=4480978	233 ms	126 ms	104 ms
www.nbc.com/generetic/generated/generetic.47e9e8df145539694627.js	214 ms	8.7 ms	205 ms
cdn.cookielaw.org/scripttemplates/202311.1.0/otGPP.js	210 ms	203 ms	6.8 ms
s.go-mpulse.net/boomerang/D4A86-3GRNZ-GKQHN-U4RB3-Y7PUQ	147 ms	109 ms	20 ms
www.nbc.com/generetic/generated/generetic.aee12a093cbf23fc187f.css	116 ms	0.0 ms	0.0 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	95 ms	84 ms	10 ms
cdn.cookielaw.org/consent/ea571e64-7f5b-48d8-8d41-f96b1ddd4838/otSDKStub.js	76 ms	60 ms	2.6 ms
entitlement.auth.adobe.com/entitlement/v4/AccessEnabler.js	71 ms	29 ms	18 ms
accounts.google.com/gsi/client	64 ms	33 ms	25 ms
www.googletagmanager.com/gtag/js?id=12823834	59 ms	39 ms	19 ms
/pagead/conversion/967347323/?random=1776804777093&cv=9&f...	50 ms	34 ms	0.9 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
Script Evaluation	7.5 s
Other	2.0 s
Script Parsing & Compilation	1.1 s
Style & Layout	506 ms
Parse HTML & CSS	287 ms
Rendering	236 ms
Garbage Collection	217 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
The page has an unload handler in a sub frame.	Actionable

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
www.nbc.com/generetic/generated/generetic.4de6b8d2e256b882e8f3.js	622.4 KiB
www.nbc.com/generetic/generated/generetic.47e9e8df145539694627.js	275.3 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB
/tags/JS/v2/69dedba1e9714049b35bde9e2f9bf059/config?env=0...	186.4 KiB
www.nbc.com/generetic/generated/generetic.aee12a093cbf23fc187f.css	130.9 KiB
cdn.cookielaw.org/scripttemplates/202311.1.0/otBannerSdk.js	103.0 KiB
accounts.google.com/gsi/client	96.3 KiB
www.googletagmanager.com/gtag/js?id=12823834	85.1 KiB
www.googletagmanager.com/gtag/js?id=4480978	84.8 KiB
assets.adobedtm.com/a2ef59fba8e9/9c7a708dbcb2/launch-678397df18e0.min.js	79.1 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
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2026-04/nba_25-26_blazers_v_spurs_2048_x_1152_sm_d...
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2026-04/nba_25-26_rockets_vs_lakers_2048_x_1152_sm...
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2025-09/onechicago-2025-web-dynamiclead-desktop-19...
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2025-09/laworder_svu_s27-web-dynamiclead-desktop-1...
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2025-12/huntingparty_s2-web-dynamiclead-desktop-19...
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2026-04/web_dl_1.jpg?impolicy=nbc_com&im=Resize,wi...
Law & Order: Special Victims Unit `div.slide-f3__container > div.slide-f3__title-logo > div.brand-logo > img.brand-logo__image`	/files/2025-09/laworder_svu_s27-logo-white-900x300.png?im...
One Chicago `div.slide-f3__container > div.slide-f3__title-logo > div.brand-logo > img.brand-logo__image`	/files/2025-09/onechicago-2025-logo-white-900x359.png?imp...
Trail Blazers vs. Spurs `div.slide-f3__container > div.slide-f3__title-logo > div.brand-logo > img.brand-logo__image`	/files/2026-04/nba_playoff_logo_small.png?impolicy=nbc_co...
Rockets vs. Lakers `div.slide-f3__container > div.slide-f3__title-logo > div.brand-logo > img.brand-logo__image`	/files/2026-04/nba_playoff_logo_small.png?impolicy=nbc_co...
The Miniature Wife `div.slide-f3__container > div.slide-f3__title-logo > div.brand-logo > img.brand-logo__image`	/files/2026-04/miniature-wife-logo-white-653x428.png?impo...
The Hunting Party `div.slide-f3__container > div.slide-f3__title-logo > div.brand-logo > img.brand-logo__image`	/files/2025-12/huntingparty_s2-logo-white-440x428.png?imp...
STREAM ON PEACOCK `div.slide-f3__cta-section > div.slide-f3__cta-wrapper > a#slide-f3__secondary-cta--2 > img.slide-f3__cta__image`	img.nbc.com/files/2025-08/streamon_cta_2.png
STREAM ON PEACOCK `div.slide-f3__cta-section > div.slide-f3__cta-wrapper > a#slide-f3__secondary-cta--3 > img.slide-f3__cta__image`	img.nbc.com/files/2025-08/streamon_cta_2.png
STREAM ON PEACOCK `div.slide-f3__cta-section > div.slide-f3__cta-wrapper > a#slide-f3__secondary-cta--4 > img.slide-f3__cta__image`	img.nbc.com/files/2025-08/streamon_cta_2.png
Trail Blazers vs. Spurs `div.slide-f3__inner > div.slide-f3__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
Rockets vs. Lakers `div.slide-f3__inner > div.slide-f3__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
One Chicago `div.slide-f3__inner > div.slide-f3__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
Law & Order: Special Victims Unit `div.slide-f3__inner > div.slide-f3__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
The Hunting Party `div.slide-f3__inner > div.slide-f3__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
The Miniature Wife `div.slide-f3__inner > div.slide-f3__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2025-07/pck_attribution_white.png?impolicy=nbc_com...
NBC Sports `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports_white_logo-425x300.png?impolicy=...
NBC Sports `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports_white_logo-425x300.png?impolicy=...
NBC Sports `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports_white_logo-425x300.png?impolicy=...
NBC Sports `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports_white_logo-425x300.png?impolicy=...
NBC Sports `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports_white_logo-425x300.png?impolicy=...
Bravo `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2019/3/11/Bravo-Logo-All-platform-AssetsBra...
Bravo `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2019/3/11/Bravo-Logo-All-platform-AssetsBra...
NBC Sports Boston `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-boston-logo-white-375x300.png?im...
NBC Sports Philadelphia `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-philadelphia-logo-white-378x300....
NBC Sports Philadelphia `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-philadelphia-logo-white-378x300....
NBC Sports California `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-california-logo-white-378x300.pn...
NBC Sports Bay Area `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-bay-area-logo-white-382x300.png?...
NBC Sports Boston `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-boston-logo-white-375x300.png?im...
NBC Sports Philadelphia `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-philadelphia-logo-white-378x300....
NBC Sports California `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-08/nbcsports-california-logo-white-378x300.pn...
Telemundo `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2019/4/16/Telemundo-Logo-White-360x300.png?...
Universo `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2019/4/25/Universo-logos-templateUniverso-L...
Universo `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2019/4/25/Universo-logos-templateUniverso-L...
Universo `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2019/4/25/Universo-logos-templateUniverso-L...
NBC Sports NOW `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/2024-11/nbcsportsnow_white_logo-425x300.png?impoli...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
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NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
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NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
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NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
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NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
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NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
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NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...
NBC `div.tile__meta > div.tile__brand-logo > div.brand-logo > img.brand-logo__image`	/files/images/2023/1/05/NBC-Logo-Stacked-White-318x300.pn...

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Optimize DOM size

●Font display

●LCP breakdown

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 84 user timings

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 2 animated elements found

●Network Requests

●Network Round Trip Times 30 ms

●Server Backend Latencies 150 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 50 ms

○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.

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
Go to slide 1 of 6 `div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__pagination > button.slideshow-f3__pagination-button`
Go to slide 2 of 6 `div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__pagination > button.slideshow-f3__pagination-button`
Go to slide 3 of 6 `div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__pagination > button.slideshow-f3__pagination-button`
Go to slide 4 of 6 `div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__pagination > button.slideshow-f3__pagination-button`
Go to slide 5 of 6 `div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__pagination > button.slideshow-f3__pagination-button`
Go to slide 6 of 6 `div.home-page__featured > div.slideshow-f3__swipeable > div.slideshow-f3__pagination > button.slideshow-f3__pagination-button`

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
EXPIRING TODAY S1 E72 \| 04/21/26 `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
EXPIRING TODAY S8 E151 \| 04/21/26 `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
One Chicago `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
The Hunting Party `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Peacock `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Peacock Trailers The Miniature Wife CLIP 04/09/26 `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
LIVE Meet the Press NOW FREELive News Streaming `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
LIVE PFT Live FREELive Sports Streaming `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
LIVE Premier League Brighton v. Chelsea - En Español `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
6:00 PM TUE APR 21 NBA Celtics Pregame Live `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Everything You Need to Know About How NBA Playoffs Work `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
This Chicago Med Scene Had Jessy Schram in Tears: “Sobbed" `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
TODAY Prego Releases Device to Record Dinner Table Conversations CLIP 04/21/26 `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
TODAY Amazon Accused of Strong-Arming Vendors Into Illegal Price Fixing CLIP 04… `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Pro Football Talk's one (and only) NFL mock draft `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
‘Super Trainers’ could make all the difference in the Kentucky Derby `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
The Fall and Rise of Reggie Dinkins `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Stumble `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Late Night with Seth Meyers Seth Catches up on 3 Weeks of Insane News; Trump Te… `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Late Night with Seth Meyers Trump Says "Can I Have Some Please?" While Signing … `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Bravo `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Peacock `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Dateline `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Law & Order: SVU `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
TODAY `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
Nightly News with Tom Llamas `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
America's Got Talent `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`
American Ninja Warrior `div.shelf__tiles > ul.shelf__tiles__inner > li.tile > a.tile`

○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

●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

●`[role]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

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

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●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 have a discernible name

●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

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

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

○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

○`[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 buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○Links are distinguishable without relying on color.

○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

○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

Trust and Safety

Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source
www.nbc.com/generetic/generated/generetic.4de6b8d2e256b882e8f3.js line 15345, col 54

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Displayed size	Actual size	Expected size
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2025-09/laworder_svu_s27-web-dynamiclead-desktop-1...	360 x 360	360 x 360	540 x 540
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2025-09/onechicago-2025-web-dynamiclead-desktop-19...	360 x 360	360 x 360	540 x 540
div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img `div.slideshow-f3__slide > div.slideshow-f3__slide-bg > picture > img`	/files/2026-04/nba_25-26_rockets_vs_lakers_2048_x_1152_sm...	360 x 360	360 x 360	540 x 540

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Unload event listeners are deprecated and will be removed.	s.go-mpulse.net/boomerang/D4A86-3GRNZ-GKQHN-U4RB3-Y7PUQ line 9, col 11479
AttributionReporting	www.googleadservices.com/pagead/conversion_async.js line 31, col 421

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
ss.nbc.co/conveyor/search?mpid=2343407225412463512	`Failed to load resource: the server responded with a status of 404 (Not Found)`
www.nbc.com/	`Not signed in with the identity provider.`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
www.nbc.com/generetic/generated/generetic.4de6b8d2e256b882e8f3.js	www.nbc.com/generetic/generated/axios.cjs.map
www.nbc.com/generetic/generated/generetic.47e9e8df145539694627.js
entitlement.auth.adobe.com/entitlement/v4/AccessEnabler.js	entitlement.auth.adobe.com/entitlement/v4/AccessEnabler.js.map

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Displays images with correct aspect ratio

●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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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
pck-nbcapp.co/insider	MORE
www.nbcsports.com/?ref=nbcdotcom	More
www.nbcuniversalprivacy.com/privacy#accordionheader5	here

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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`