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Siteliner vs Ahrefs Broken Link Checker: catalog facts
Siteliner	Ahrefs Broken Link Checker
Free Free scans are available from the website; account sign-up is optional.	Free The checker is free; it is a lead-in to Ahrefs' paid SEO platform.
Web	Web
Finds duplicate content within a site Reports broken links and redirections in the same scan	No signup or download required Shows both inbound and outbound broken links
Web service only, so the site must be publicly reachable Focuses on content and links rather than speed or accessibility	Deeper reports need a paid Ahrefs account Results depend on Ahrefs' index rather than a fresh crawl of your site
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Needs internet	Needs internet
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.