PerfoMetrix
Passive & safe · Free, no sign-up

How healthy is your website?

Performance, security and SEO in one report, with a plain-English fix for every issue.

Test device

Passive checks only: we load the page like a visitor would and never probe or attack it.

  • Results in about a minute
  • Passive checks only
  • 50+ checks with fixes

Performance

Core Web Vitals and Lighthouse lab data from Google PageSpeed Insights.

Security

HTTPS, certificates, security headers, cookies, email DNS records and known-vulnerable libraries.

SEO

Titles, descriptions, headings, canonical tags, structured data, robots.txt and sitemaps.