Free footprint report
Everything the internet already knows about your domain.
Every subdomain ever issued a certificate, every lookalike registered against you, and any cert about to expire — from public data, in seconds. No signup.
Public sources only — Certificate Transparency, DNS and RDAP. We never scan or probe your servers.
Subdomains
Every hostname under your domain that's ever appeared in a Certificate Transparency log — including the staging box you forgot.
Lookalikes
Typo, homoglyph and TLD-swap permutations of your domain, checked against RDAP to see which are already registered.
Cert expiry
The not_after date on the certificates we can see, so a lapse never takes your app dark by surprise.