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Ahrefs Free vs SEO Site Checkup: catalog facts
Ahrefs Free	SEO Site Checkup
Freemium Free for verified websites; paid Ahrefs plans add more tools and data.	Freemium One free check per day without an account; more checks and monitoring need a sign-up or…
Web, Browser extension	Web
Technical site audit at no cost Backlink and keyword ranking data from Ahrefs' index	Fix instructions for each failed check Competitor comparison in the same report
Requires an account and site ownership verification Full data for other people's sites needs a paid plan	Only one check per day without signing up Monitoring and tracking features are paid
Web application, Browser extension	Web application
Closed source	Closed source
License not stated	License not stated
Account needed	No account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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