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Siteliner vs Checkbot: catalog facts
Siteliner	Checkbot
Free Free scans are available from the website; account sign-up is optional.	Freemium Free to install, with Checkbot Pro from $10 per month.
Web	Browser extension
Finds duplicate content within a site Reports broken links and redirections in the same scan	Crawls hundreds of pages at once More than 50 SEO, speed and security checks
Web service only, so the site must be publicly reachable Focuses on content and links rather than speed or accessibility	Chrome only Some features require a paid plan
Web application	Browser extension
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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