What subdomains does this domain actually have?
Find the subdomains tied to a domain, including forgotten staging sites, test servers, and old marketing pages.
We enumerate subdomains tied to the domain you enter, using public DNS records and known naming patterns. This surfaces things like old staging environments, test servers, and marketing pages that are easy to lose track of.
Most breaches don’t start at the main website. They start at a subdomain nobody remembers exists: a staging server left open, a test login page still running an old version of something, a marketing microsite with weak security. Every subdomain is a door. If you don’t know it’s there, you can’t lock it.
Cross-check the list against what your team expects to see. Anything unfamiliar is worth investigating: is it still in use, who owns it, is it running something outdated. Subdomains that are no longer needed should be decommissioned, not left running quietly.
FAQ
Good to know.
Will this find every subdomain?
No tool finds all of them. This scan covers common patterns and public records. It’s a starting point, not a full attack surface audit.
Is this safe to run against a domain I don’t own?
Subdomain discovery uses public information and doesn’t touch the target server directly, but always get authorization before scanning infrastructure you don’t manage.
New subdomains show up constantly. Someone should be watching.
New subdomains appear as clients spin up test environments or new marketing pages, often without security review. Mispar tracks that alongside credential exposure, per client, continuously.