Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.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.
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
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| /js/gigya.js?apikey=3_Qa8TkWpIB8ESCBT8tY2TukbVKgO5F6BJVc7... | 900.0 s | 238.2 KiB |
| assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js | 3600.0 s | 108.4 KiB |
| p.nfltags.com/nfl/live/NflUmdComponents.NFLToken.js | 43200.0 s | 115.3 KiB |
| imasdk.googleapis.com/js/sdkloader/gpt_proxy.js | 900.0 s | 38.2 KiB |
| cdn.adsafeprotected.com/iasPET.1.js | 0.0 ms | 6.7 KiB |
| /a5ea4e8f4344/1648c62d3986/1725e8f2a9aa/RC437f1b317b854e0... | 3600.0 s | 1006 B |
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
NFL helmet image section#FavoriteTeamCard-19 > div.rounded-sm > div.relative > img.w-40 | static.www.nfl.com/league/apps/web/global/helmets/NFL.png | 1.7 MiB | 1.6 MiB |
li.opacity-0 > a.snap-start > div.aspect-video > img.object-cover li.opacity-0 > a.snap-start > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/pp4avtjpmc9nat... | 1.1 MiB | 1.1 MiB |
li > a.snap-start > div.aspect-video > img.object-cover li > a.snap-start > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/lgg9ibic1wld91... | 910.8 KiB | 905.1 KiB |
Daniel_Whelan ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/lqnpsqdo5gpoxx... | 898.1 KiB | 894.6 KiB |
David_Ojabo ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/zhwq0frk3h6ni3... | 836.9 KiB | 833.7 KiB |
Travis_Clayton ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/tdbgv3ewtd2oml... | 821.6 KiB | 818.4 KiB |
li > a.snap-start > div.aspect-video > img.object-cover li > a.snap-start > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/tngoai5c22voh4... | 693.5 KiB | 689.1 KiB |
li > a.snap-start > div.aspect-video > img.object-cover li > a.snap-start > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/evnipafdjgfrfr... | 612.8 KiB | 607.4 KiB |
div.flex > header.flex > div.flex > img.max-h-10 div.flex > header.flex > div.flex > img.max-h-10 | static.www.nfl.com/league/apps/web/global/logos/logo-league-gamepass-light.png | 585.1 KiB | 584.4 KiB |
li > a.snap-start > div.aspect-video > img.object-cover li > a.snap-start > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/h0th7qbkhvicnx... | 561.6 KiB | 558.1 KiB |
Dante Barnett ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/v1774474534/league/qh... | 546.5 KiB | 544.4 KiB |
li.opacity-0 > a.snap-start > div.aspect-video > img.object-cover li.opacity-0 > a.snap-start > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/ptlt5pq5pjo1qt... | 511.2 KiB | 508.6 KiB |
Jermaine_Eluemunor ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/xqlquhcisz9ykf... | 403.3 KiB | 401.7 KiB |
Charlie_Smyth ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/fpnhcibi3incbg... | 330.0 KiB | 328.7 KiB |
SBChamps_RightRail_SHWK div.group > section#BasicPromoToolkit-33 > article.shadow-extended > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/x1zyyu3fomve9r... | 324.7 KiB | 285.7 KiB |
li > a.flex > div.aspect-video > img.object-cover li > a.flex > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/kma65p8inbaobd... | 242.1 KiB | 201.6 KiB |
RivalriesLaunch_1920x1080 div.group > section#BasicPromoToolkit-39 > article.shadow-extended > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/c3y9eedfritq05... | 180.2 KiB | 158.6 KiB |
li > a.flex > div.aspect-video > img.object-cover li > a.flex > div.aspect-video > img.object-cover | /image/upload/f_auto,q_auto,dpr_2.0/league/cay5e3n1dwedeu... | 119.4 KiB | 105.1 KiB |
01_LogosLockup_3840x2160 div.group > section#BasicPromoToolkit-41 > article.shadow-extended > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/jhs3ootijeq1vs... | 87.4 KiB | 84.8 KiB |
01_LogosLockup_3840x2160_Flag div.group > section#BasicPromoToolkit-34 > article.shadow-extended > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/v0jmjsk5y0rhz2... | 77.6 KiB | 75.3 KiB |
a.@container/card > div.group > div.py-2 > img.absolute a.@container/card > div.group > div.py-2 > img.absolute | static.www.nfl.com/o_20/league/apps/web/global/outlines/ne | 33.8 KiB | 31.6 KiB |
a.@container/card > div.group > div.py-2 > img.absolute a.@container/card > div.group > div.py-2 > img.absolute | static.www.nfl.com/o_20/league/apps/web/global/outlines/sea | 28.3 KiB | 26.5 KiB |
Paris Banner div.group > section#Image-10 > a > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/sosvvwazne6lp5... | 38.7 KiB | 14.7 KiB |
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size |
|---|---|
| www.nfl.com/_next/static/css/07f6e4991e7c0c1d.css | 382 B |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| www.nfl.com/ | 763 ms |
| www.nfl.com/international/ | 0.0 ms |
| www.nfl.com/international | 0.0 ms |
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /_next/static/chunks/app/[[...pages]]/page-ab1c0860b0e4ea... | 265.3 KiB | 203.2 KiB |
| www.nfl.com/_next/static/chunks/7790-bf9dbed8489e6381.js | 164.8 KiB | 86.0 KiB |
| www.nfl.com/_next/static/chunks/2303-8cdf0ff225e90745.js | 124.9 KiB | 75.5 KiB |
| www.nfl.com/_next/static/chunks/9694-2f67674d67e3d317.js | 143.2 KiB | 72.5 KiB |
| www.nfl.com/_next/static/chunks/4713-a73be4f31951b1e3.js | 73.5 KiB | 39.3 KiB |
| www.nfl.com/_next/static/chunks/59c6eb5a-c1c5310ffc228231.js | 34.9 KiB | 32.8 KiB |
| assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js | 108.1 KiB | 24.3 KiB |
| www.nfl.com/_next/static/chunks/7444-9a3ed02348f628a9.js | 44.3 KiB | 22.6 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| www.nfl.com/_next/static/chunks/2303-8cdf0ff225e90745.js | 2.8 s | 2.5 s | 56 ms |
| Unattributable | 1.2 s | 222 ms | 0.0 ms |
| www.nfl.com/international | 1.1 s | 70 ms | 135 ms |
| /_next/static/chunks/app/[[...pages]]/page-ab1c0860b0e4ea... | 690 ms | 478 ms | 108 ms |
| assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js | 460 ms | 394 ms | 45 ms |
| www.nfl.com/_next/static/chunks/87c73c54-0df74f0fec58f23d.js | 379 ms | 323 ms | 27 ms |
| www.nfl.com/_next/static/chunks/7790-bf9dbed8489e6381.js | 96 ms | 21 ms | 53 ms |
| www.nfl.com/_next/static/chunks/9694-2f67674d67e3d317.js | 63 ms | 1.3 ms | 61 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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 4.1 s |
| Other | 1.2 s |
| Style & Layout | 728 ms |
| Script Parsing & Compilation | 585 ms |
| Garbage Collection | 149 ms |
| Parse HTML & CSS | 145 ms |
| Rendering | 140 ms |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Daniel_Whelan ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/lqnpsqdo5gpoxx... |
Charlie_Smyth ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/fpnhcibi3incbg... |
Jermaine_Eluemunor ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/xqlquhcisz9ykf... |
Travis_Clayton ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/tdbgv3ewtd2oml... |
Dante Barnett ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/v1774474534/league/qh... |
David_Ojabo ul.grid > li.flex > a.shadow-compact > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/zhwq0frk3h6ni3... |
01_LogosLockup_3840x2160_Flag div.group > section#BasicPromoToolkit-34 > article.shadow-extended > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/v0jmjsk5y0rhz2... |
01_LogosLockup_3840x2160 div.group > section#BasicPromoToolkit-41 > article.shadow-extended > img.w-full | /image/upload/q_auto,f_auto,dpr_2.0/league/jhs3ootijeq1vs... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
8:14
VIDEOS
Lorenzo Styles Jr. wakes up with 'GMFB' to discuss his journey to 2… section#EditorialCenterpiece-17 > ul.grid > li > a.flex |
SEA
NE section#ReplaysPackage-24 > ul.grid > li > a.@container/card |
NEWS
How 2 radically different FA plans could work; plus, Cousins' fit with Rai… div.flex > ul.grid > li > a.snap-start |
NEWS
NFL Pro: Does Fernando Mendoza fit in Klint Kubiak’s offense? div.flex > ul.grid > li > a.snap-start |
NEWS
Week 17 fantasy sleepers: 8 high-upside lineup picks for championship week div.flex > ul.grid > li > a.snap-start |
NEWS
NFL Pro fantasy football preview: Championship insights div.flex > ul.grid > li > a.snap-start |
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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
[object Event] | |
assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js line 15, col 18234 | 🚀 Failed to execute data element module core/src/lib/dataElements/customCode.js for data element identityProvider (Local Storage). Cannot read properties of null (reading 'rawData')
TypeError: Cannot read properties of null (reading 'rawData')
at Object.source (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:2:9278)
at e.exports (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:14:9553)
at https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:22958
at https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:23948
at c (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25676)
at r (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25775)
at s (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:26070)
at o (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25932)
at s (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:26130)
at o (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25932) |
assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js line 15, col 18234 | 🚀 Failed to execute data element module core/src/lib/dataElements/customCode.js for data element identityProvider (Local Storage). Cannot read properties of null (reading 'rawData')
TypeError: Cannot read properties of null (reading 'rawData')
at Object.source (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:2:9278)
at e.exports (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:14:9553)
at https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:22958
at https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:23948
at c (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25676)
at r (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25775)
at s (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:26070)
at o (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25932)
at s (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:26130)
at o (https://assets.adobedtm.com/a5ea4e8f4344/1648c62d3986/launch-53368d199d70.min.js:16:25932) |
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.
Performance issues directly impact user engagement and conversion rates.
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.