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Open toolPageSpeed Insights Test for Desktop and Mobile
Run desktop and mobile PageSpeed Insights reports. Review category scores, lab metrics, real-user data when available, opportunities, diagnostics, and detected technology signatures.
What the Desktop and Mobile Reports Include
This tool requests separate desktop and mobile PageSpeed Insights reports. It shows the Lighthouse categories and audits, performance metrics, opportunities, diagnostics, and real-user field data when Google has data for the tested page or origin.
🛍️ Platform Architecture
May identify Shopify, WooCommerce, WordPress, or Webflow when matching resource signatures appear. It cannot reliably identify every app or custom build.
⚡ Lab and Field Metrics
Lab metrics come from a simulated Lighthouse run. Real-user field data appears separately when Google has enough Chrome User Experience Report data.
🎯 App & Script Footprint
Checks report network URLs for a limited set of marketing and support script signatures. Results may miss apps and do not confirm every installed integration.
PageSpeed Reports FAQ
What do the PageSpeed reports include? +
The tool runs separate desktop and mobile PageSpeed Insights reports. Each includes Performance, Accessibility, Best Practices, and SEO scores, Lighthouse lab metrics, opportunities, diagnostics, and audit checks. Real-user field data appears when Google returns it.
Are these results based on real visitors? +
Lighthouse lab results use a simulated test. Real-user field data is shown separately when Google has enough Chrome User Experience Report data for the page or its origin.
Does this include a full SEO audit? +
No. The PageSpeed SEO category checks selected Lighthouse items for the tested URL. It does not crawl the whole website or verify indexing, sitemaps, every broken link, or security.
Need help with the results?
Use the report to identify areas worth investigating. For broader technical and on-page recommendations, explore SEO services. If you are assessing store performance and revenue, try the ecommerce growth calculators.
How to read Core Web Vitals
For a good user experience, current web.dev field thresholds at the 75th percentile are LCP at or below 2.5 seconds, INP at or below 200 milliseconds, and CLS at or below 0.1. Lighthouse lab results are useful diagnostics; field data reflects real users when available. See Web Vitals guidance.
How to use the PageSpeed Insights Test for Desktop and Mobile
- Enter a website URL into the audit input and press Run Desktop and Mobile Scan.
- Watch the terminal console while it requests both PageSpeed reports, then switch between the Mobile and Desktop tabs.
- Read the category score cards, the real user experience field data and the Lighthouse lab metrics for each device.
- Open Performance opportunities and All Lighthouse checks for prioritized fixes, and use Copy Report Summary to share the results.
Why it matters
Page speed sits at the intersection of rankings and revenue. Google uses Core Web Vitals as a ranking signal, so slow pages start at a disadvantage, and on mobile, where most traffic now comes from, every extra second of load time raises bounce rates. The gap between lab and field data also matters: lab scores help you diagnose, but real-user data shows what customers actually feel. Testing both desktop and mobile keeps you honest about the experience most visitors get.
PageSpeed Insights Test for Desktop and Mobile FAQs
What do the PageSpeed reports include?
Each run produces separate desktop and mobile reports with Performance, Accessibility, Best Practices and SEO scores, Lighthouse lab metrics, improvement opportunities, diagnostics and individual audit checks. Real-user field data appears when Google has enough Chrome User Experience Report data for the page or its origin.
Are the results based on real visitors?
The Lighthouse lab scores come from a simulated test, not real traffic. Field data is shown separately and reflects real Chrome users when Google has collected enough of it. Lab results are best for diagnosing specific issues, while field data tells you what visitors actually experience.
Is this a full SEO audit?
No. The SEO category only checks selected Lighthouse items for the tested URL, such as crawlability and basic on-page elements. It does not crawl your whole site, verify indexing or sitemaps, find every broken link or check security. Treat it as a single-page performance and technical check, not a complete audit.
How often should I retest a page?
Retest after any meaningful change: new images, theme updates, plugin additions or hosting moves. Lab results can vary slightly between runs, so compare trends across several tests rather than chasing a single score. For ongoing monitoring, run the report monthly or after each release.