Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

7 hosts · 199 ms

HostCertsFirst seenLast seen
vetuslegal.com 12 2026-06-05 2026-10-09
*.vetuslegal.com 8 2026-06-12 2026-10-09
care.vetuslegal.com 5 2026-04-23 2026-08-23
viewemail.vetuslegal.com 12 2026-06-03 2026-08-02
info.vetuslegal.com 8 2026-06-03 2026-08-01
mta-sts.vetuslegal.com 1 2026-09-01 2026-09-01
www.vetuslegal.com 6 2026-06-04 2026-06-04

Programmatic access: API GET /v1/hosts/vetuslegal.com (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/vetuslegal.com.