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Siteliner vs Semrush Site Audit: catalog facts
Siteliner	Semrush Site Audit
Free Free scans are available from the website; account sign-up is optional.	Freemium A limited free crawl is available; larger audits require a paid Semrush plan.
Web	Web
Finds duplicate content within a site Reports broken links and redirections in the same scan	Issues ranked by severity with fix suggestions Covers AI search visibility as well as classic SEO
Web service only, so the site must be publicly reachable Focuses on content and links rather than speed or accessibility	The free crawl is limited Full use requires a paid Semrush subscription
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is 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.