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

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