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Sitebulb vs Netpeak Spider: catalog facts
Sitebulb	Netpeak Spider
Paid Paid subscription with a free trial.	Paid Commercial software with a free trial.
Web	Windows, macOS
Prioritised hints with built-in explanations JavaScript crawling included	Dedicated crawler for technical SEO audits Runs as a desktop application
Paid after the trial Desktop crawls capped at 500,000 URLs per audit	Paid after the trial Closed source
Downloadable app, Hosted service	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
Not stated if it works offline	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.