DNS & attack surface
No dangling CNAME records
DNS hygiene, subdomains, takeover risks and domain registration.
Why it matters
If the alias target becomes registrable, whoever registers it controls your subdomain.
How to fix it
Quick fix · under 1 hour- Delete CNAME records whose targets no longer exist.
Test this now, free: Subdomain finder - no sign-up.
How we test it
The check runs from the public internet as part of every scan, read-only and without touching your data. If it fails, your report shows the evidence that proves it - the record, header, file or banner we observed - together with the fix above, tailored to the issue we found.
Does your domain pass this check?
Run all 97 checks in about a minute. Your first scan is free, with the complete fix for your most urgent finding.
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