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Siteliner vs Netpeak Spider: catalog facts
Siteliner	Netpeak Spider
Free Free scans are available from the website; account sign-up is optional.	Paid Commercial software with a free trial.
Web	Windows, macOS
Finds duplicate content within a site Reports broken links and redirections in the same scan	Dedicated crawler for technical SEO audits Runs as a desktop application
Web service only, so the site must be publicly reachable Focuses on content and links rather than speed or accessibility	Paid after the trial Closed source
Web application	Downloadable app
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.