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Sitechecker vs Netpeak Spider: catalog facts
Sitechecker	Netpeak Spider
Freemium The single-page SEO checker is free; crawling, monitoring and rank tracking are paid…	Paid Commercial software with a free trial.
Web, Browser extension	Windows, macOS
Free page audit with a score, status code and indexation status Crawler, monitoring and rank tracking in the same platform	Dedicated crawler for technical SEO audits Runs as a desktop application
Most features beyond the single-page checker are paid Aimed at marketers, so reports focus on SEO rather than general site health	Paid after the trial Closed source
Web application, Browser extension	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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