PAGESPEED INSIGHTS V5
Test how a webpage performs
Run a Lighthouse performance audit from Google's test environment. This measures webpage loading and rendering behavior—not your internet connection's maximum bandwidth.
- Public HTTP and HTTPS pages
- Mobile or desktop test profile
- Core loading metrics and practical opportunities
COMPLETE PAGESPEED REPORT
Analysis result
Submit a public webpage above to populate this report.
REAL USER EXPERIENCE
Chrome field data
Page-level and origin-level Chrome User Experience Report data appears only when Google has enough eligible traffic.
Field data will appear here when available.
LABORATORY RESULT
Performance metrics and page capture
Metrics and screenshots are produced by the Lighthouse run using the selected test profile.
—Performance
Scores from 90–100 are shown in green, 50–89 in amber, and 0–49 in red.
Final screenshot
No screenshot yet
Waiting for analysis
—Laboratory metrics will appear here.
Page load timeline
Frames captured while the page is loading.
Loading frames will appear here.
TEST ENVIRONMENT
Run details
The report includes the Lighthouse version, emulation settings, benchmark data, URLs and timing metadata.
- Status
- Waiting for analysis
ALL AVAILABLE AUDITS
Every returned Lighthouse check
Choose a category to inspect failed, warning, informative, manual, not-applicable and passed audits. Expand an item for its returned details.
Audit results will appear here.
PWA score is unavailable
Lighthouse removed the Progressive Web App category in version 12. It is not returned by the current PageSpeed Insights API.
ADDITIONAL API DATA
Stacks and detected entities
COMPLETE RESPONSE
Every field returned by the API
The structured report above covers the useful fields. Expand this section to inspect the exact, unmodified PageSpeed Insights response, including data not recognized by this interface.
View complete API response
Run an analysis to load the response.
Test notes
WHAT IS MEASURED
A controlled lab test, not a visitor-side stopwatch
Google loads the submitted public URL in a Lighthouse test environment with the selected mobile or desktop profile. The score combines several loading and responsiveness measurements using Lighthouse's current scoring model.
The result can change between runs because the target server, third-party services, page content, Lighthouse version, and test infrastructure can change. A result here does not show how every real visitor experiences the page.
Some popular URLs also have Chrome User Experience Report field data. Google has announced that field data will eventually be removed from the PageSpeed Insights API, so this page treats the Lighthouse laboratory result as the primary report.
PageSpeed Insights API documentation ↗