Compare software

Semrush Site AuditSerpstat
Freemium

A limited free crawl is available; larger audits require a paid Semrush plan.

 Freemium

Free access to start, with paid plans for fuller use.

Web Web, Browser extension
  • Issues ranked by severity with fix suggestions
  • Covers AI search visibility as well as classic SEO
  • Site audit with prioritized issues and scheduled checks
  • Keyword data for 230 countries
  • The free crawl is limited
  • Full use requires a paid Semrush subscription
  • Hosted service; data stays on Serpstat's servers
  • Free tier is limited compared with paid plans
Web application Web application, Browser extension
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Account needed
Needs internet Needs internet

Checked September 23, 2026

Checked October 2, 2026

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