Site Report Card
Enter your URL for a live Google PageSpeed scan: performance, accessibility, best practices & SEO.
- Performance
- Accessibility
- Best practices
- SEO
What the report card measures
Enter a web address and the tool asks Google's PageSpeed Insights to load that page the way a phone would and run its Lighthouse tests. The report shows four scores out of 100, named as Lighthouse names them: performance, accessibility, best practices and SEO. They are the Lighthouse category scores from that one run, unchanged.
The overall score is the plain average of the four, shown as a letter: A from 90, B from 80, C from 70, D from 55 and F below that. The line under each score is the highest-weight Lighthouse check your page failed in that category, in Lighthouse's own words; when nothing failed, the line says so. Performance instead quotes the measured time until the largest element on the page has loaded (LCP), which Google counts as good up to 2.5 seconds.
When the scan cannot run, because PageSpeed Insights did not answer or too many scans came from one connection, the tool tells you so and shows no scores at all. It never fills the gap with an estimate. A finished report is still a first look at one page under lab conditions. Use it to decide whether a closer review is worth your time; in the full audit I go through the code, the server and the analytics by hand.
Questions about this tool
Is this a live scan of my site?
Yes. Every report comes from a Google PageSpeed Insights mobile test of the address you enter, run at the moment you ask. If that test cannot run, because the service does not answer or too many scans came from one connection, you get a message saying so and a Retry button. No score is shown unless it was measured.
Do I need to leave an email to see the report?
No. You enter a web address and the report appears on the page. The address is sent to PageSpeed Insights to run the test, and nothing else is asked for. Contact details are needed only if you go on to request the full audit.
Why is the score here different from the one I got on PageSpeed Insights?
Lab scores change from run to run, even for the same page a minute apart, because every test loads the page again under simulated phone conditions. The four category scores here are Google's own for this run. Only the overall letter is added by this tool: it is the average of the four, so it has no counterpart on Google's page.