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Sucuri SiteCheck vs urlquery: catalog facts
Sucuri SiteCheck	urlquery
Free The scanner is free; monitoring, firewall and cleanup are paid Sucuri services.	Free Free to use.
Web	Web
Checks malware, blocklists and outdated software in one scan Flags missing security headers with fix documentation	Checks a link without visiting it yourself Shows several detection types plus IP and hosting network
Remote only; cannot see server-side files Results are not guaranteed	Recent submissions appear in a public list, so avoid submitting private URLs Results depend on the service's detection sources
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
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.