What it reads
One lookup of a random name under your domain.
Check 35 of 54 · Domain and registration
Wildcard DNS, explained.
Any made-up subdomain resolving to something, which hides mistakes.
Engine 1.57.0, read 25 October 2026
Free checkScoredReliability: High
Could you lose the domain, or part of it?
What the check does, and where it stops.
Why it matters
A wildcard widens what an attacker can use and masks the typos and leftovers you would otherwise notice.
What a failure looks like
A failure is a finding in your result. The check is scored, so it can lower your score, and the Full Report gives every finding its severity and a fix. If the check cannot finish, it is recorded as unknown: it carries no penalty, and it is never a pass.
Where its limits are
A risk in how the domain is set up, not a proven hole.
ReliabilityHigh: narrow, known blind spots
Check 35 is one of 10 in Domain and registration. See it in its row on the scanner page, beside the rest of Domain and registration.
See how your domain does.
The free check includes this one and takes about 30 seconds. No account. Nothing to install.