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Website GraderSEOptimer
Free

Free to use in the browser.

 Freemium

Free single audits; white-label reports and the full toolset need a paid plan with free…

Web Web
  • Free and runs in the browser with just a URL
  • Covers performance, mobile, SEO and security in one report
  • Instant audit from a single URL
  • Prioritised, plain-language recommendations
  • Less detailed than dedicated performance or SEO audit tools
  • Part of HubSpot's marketing ecosystem
  • Report branding and deeper features are paid
  • Scores are a summary rather than a full crawl
Web application Web application
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Needs internet Needs internet

Checked October 1, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.