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 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.
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.
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 |
|---|---|---|
| connect.facebook.net/en_US/bundle/sdk.js/ | 1200.0 s | 77.8 KiB |
| connect.facebook.net/en_US/sdk.js | 1200.0 s | 5.1 KiB |
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Performance issues directly impact user engagement and conversion rates.
| URL | Est Savings |
|---|---|
| /s/googlesans/v62/4UaRrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iq... | 5.0 ms |
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 | |
|---|---|---|---|
div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 | i.pinimg.com/474x/e0/be/b2/e0beb2018a51cabc3ddd65b21dff3b85.jpg | 32.4 KiB | 24.7 KiB |
div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 | i.pinimg.com/474x/1d/7d/1f/1d7d1f77dbb964aba0227ce746a85054.jpg | 32.4 KiB | 24.6 KiB |
div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 | i.pinimg.com/474x/51/4c/34/514c341c9578935bcbc06a7c02232e6c.jpg | 25.4 KiB | 17.6 KiB |
div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 | i.pinimg.com/474x/48/f2/09/48f20925e3b261df632e556903f30548.jpg | 22.8 KiB | 15.1 KiB |
div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 | i.pinimg.com/474x/f3/d6/bf/f3d6bf4e9fb7773b42e853d0cf5a5977.jpg | 34.0 KiB | 14.7 KiB |
div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 | i.pinimg.com/474x/0a/f7/54/0af75415f14e696fbf12a457ec107b6b.jpg | 33.1 KiB | 13.8 KiB |
div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 div.ADXRXN > div.e2jAjp > div.ADXRXN > img.iFOUS5 | i.pinimg.com/474x/4b/19/21/4b19216ef919511575b3ec9f756017a9.jpg | 26.8 KiB | 7.5 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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.
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 |
|---|---|---|---|
| s.pinimg.com/webapp/www/_client-62195fd773519886.mjs | 4.9 s | 4.3 s | 215 ms |
| Unattributable | 1.2 s | 38 ms | 0.0 ms |
| in.pinterest.com/ | 1.2 s | 18 ms | 10 ms |
| s.pinimg.com/webapp/31320-2f5f600dacb7eabb.mjs | 616 ms | 334 ms | 6.4 ms |
| s.pinimg.com/webapp/18324-f75b500bbaa8e30e.mjs | 543 ms | 419 ms | 122 ms |
| s.pinimg.com/webapp/38794-8b06bf08008b5f9e.mjs | 271 ms | 177 ms | 5.8 ms |
| s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs | 269 ms | 99 ms | 90 ms |
| accounts.google.com/gsi/client?hl=en | 242 ms | 135 ms | 42 ms |
| s.pinimg.com/webapp/gestalt-5c994cddaa3994a0.mjs | 178 ms | 7.9 ms | 168 ms |
| connect.facebook.net/en_US/bundle/sdk.js/ | 167 ms | 122 ms | 40 ms |
| s.pinimg.com/webapp/www/index-670a36ef7ae8c558.mjs | 85 ms | 6.3 ms | 39 ms |
| s.pinimg.com/webapp/18030-df9a17e6751d2771.mjs | 84 ms | 2.2 ms | 81 ms |
| s.pinimg.com/webapp/49517-9592893f636d4e8e.mjs | 77 ms | 5.0 ms | 70 ms |
| s.pinimg.com/webapp/51405-76ae5359063ab8d4.mjs | 57 ms | 2.8 ms | 52 ms |
| s.pinimg.com/webapp/89721-ee82c7e33babcc8a.mjs | 53 ms | 1.6 ms | 51 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 | 5.8 s |
| Other | 2.0 s |
| Script Parsing & Compilation | 1.6 s |
| Style & Layout | 703 ms |
| Parse HTML & CSS | 326 ms |
| Garbage Collection | 270 ms |
| Rendering | 182 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
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| Chrome Password Manager was present upon navigating away. | Pending browser support |
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| :root{--sema-motion-spring-spatial-fast:linear(0 0%,1.171 2%,1.775 4%,0.592 6%,0.493 8%,1.513 10%,1… | 51.3 KiB | 33.2 KiB |
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.
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Pinterest App div.ADXRXN > div.ADXRXN > div.ADXRXN > div.Q3hcOU |
Pinterest App div.ADXRXN > div.Q3hcOU > div.ADXRXN > a.etmDmh |
div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN |
div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN |
div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN |
div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN |
div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN div.ADXRXN > div.H2DtUH > div.oRZ5_s > div.ADXRXN |
Get started here div.ADXRXN > div.H2DtUH > div.ADXRXN > a.etmDmh |
These items highlight common accessibility best practices.
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 |
|---|---|
accounts.google.com/gsi/client?hl=en line 85, col 88 | [GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token. |
Failed to load resource: the server responded with a status of 404 () | |
Framing 'https://accounts.google.com/' violates the following report-only Content Security Policy directive: "frame-ancestors 'self'". The violation has been logged, but no further action has been taken.
| |
Not signed in with the identity provider. | |
s.pinimg.com/webapp/www/_client-62195fd773519886.mjs line 328, col 347236 | Unexpected hydration error Minified React error #418; visit https://react.dev/errors/418?args[]=HTML&args[]= for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Suspense (<anonymous>)
at m (https://s.pinimg.com/webapp/www/index-670a36ef7ae8c558.mjs:96:53502)
at tg (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:290:70767)
at tq (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:290:77094)
at t1 (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:290:79772)
at lK (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:94243)
at rootComponent (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:358810)
at _Z (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:314934)
at Suspense (<anonymous>)
at u (https://s.pinimg.com/webapp/94146-36b13ff6314bb4af.mjs:1:1452)
at _0 (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:315164)
at t_ (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:6356)
at tU (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:13218)
at _Q (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:314327)
at A (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:359668)
at d (https://s.pinimg.com/webapp/www/index-670a36ef7ae8c558.mjs:26:41906)
at e.exports (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:9:69108)
at _1 (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:315415)
at t_ (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:6356)
at tq (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:14417)
at s (https://s.pinimg.com/webapp/96664-15758a43660d5024.mjs:206:67933)
at _ (https://s.pinimg.com/webapp/www/index-670a36ef7ae8c558.mjs:26:28149)
at _2 (https://s.pinimg.com/webapp/www/_client-62195fd773519886.mjs:329:315791)
at t_ (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:6356)
at tm (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:4339)
at https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:12507
at tj (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:13495)
at tL (https://s.pinimg.com/webapp/vendor-react-aacabe10c4aaf058.mjs:14:8882)
at Suspense (<anonymous>) |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
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.
Content Best Practices
Canonical links suggest which URL to show in search results. Learn more about canonical links.
Informational: a Permissions-Policy directive showing feature -> allowed origins.
Source: MDN Permissions-Policy
Format your HTML in a way that enables crawlers to better understand your app’s content.