Security & Privacy Tools
Safe Browsing Checker
Check whether a domain is flagged for malware or phishing.
Looks up live data What you enter is sent to our server to fetch live results from public sources. Results are cached briefly.
About this tool
Find out whether a domain is flagged for malware or phishing. The domain is looked up through Cloudflare's security-filtering DNS, which blocks known malicious sites, and compared with a normal lookup so a missing domain is not mistaken for a blocked one. This is a quick indicator, not a full scan: a clean result does not guarantee a site is safe, and other lists such as Google Safe Browsing may know about threats this one does not.
How to use it
- Enter a domain or paste a full URL.
- Press Check domain.
- Read the verdict: flagged, not flagged, or unresolved.
Common problems
- Verdict is "unresolved"
- The domain does not exist or has no address record, so there is nothing to check.
- A site you trust is flagged
- It may have been compromised or listed in error. Contact the site owner and the filter provider before visiting.
Frequently asked questions
Is "not flagged" the same as safe?
No. It only means this filter does not currently block the domain.