Compare software

SitebulbSiteOne Crawler
Paid

Paid subscription with a free trial.

 Free

Free and open source.

Web Windows, macOS, Linux, Command line
  • Prioritised hints with built-in explanations
  • JavaScript crawling included
  • Broad audit covering SEO, security, accessibility and performance
  • Both a desktop GUI and a scriptable CLI
  • Paid after the trial
  • Desktop crawls capped at 500,000 URLs per audit
  • The large number of CLI options takes time to learn
  • Crawling large sites can put load on the target server
Downloadable app, Hosted service Downloadable app
Closed source Open source
License not stated License not stated
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked September 24, 2026

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