Performance report reader
Read the scores and flagged checks in a Lighthouse JSON report.
Need a report? Run Google PageSpeed Insights (opens a new tab) and export its Lighthouse JSON, then open the file here.
Make the next step clear.
Start with your own content or try the example. Your result will appear here.
How this works
Reads category scores and non-passing numeric or binary audits from a supplied Lighthouse report, including PageSpeed Insights JSON containing lighthouseResult. Displays the measurement date and device mode when provided.
What this cannot tell you
This reader does not run a speed test or verify the provenance of your file. Lab results vary; they do not establish real-user performance, mobile usability or accessibility conformance.