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Checkbot vs SEOquake: catalog facts
Checkbot	SEOquake
Freemium Free to install, with Checkbot Pro from $10 per month.	Free The extension is a free download; the linked web checker allows three free checks a day.
Browser extension	Web, Browser extension
Crawls hundreds of pages at once More than 50 SEO, speed and security checks	On-page SEO audit directly in the browser Internal link inspection and URL comparison
Chrome only Some features require a paid plan	Homepage now redirects to a Backlinko page that promotes Semrush Deeper site-wide audits are pushed toward paid Semrush tools
Browser extension	Web application, Browser extension
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.