Find every subdomain
of a domain.

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

9 hosts · 355 ms

HostCertsFirst seenLast seenDNS
pureromance.com 36 2026-04-15 2026-10-01 ok
*.pureromance.com 37 2026-05-17 2026-10-02 —
o-vanillafrosting.pureromance.com 10 2026-04-14 2026-08-11 ok
liqmh.pureromance.com 12 2026-04-24 2026-08-21 ok
*.email.pureromance.com 8 2026-04-15 2026-08-11 —
go.pureromance.com 3 2026-06-07 2026-08-15 ok
mediacenter.pureromance.com 2 2025-08-18 2026-07-17 ok
basicinstinct.pureromance.com 10 2026-04-14 2026-08-10 ok
greathead-pinkstrawberry.pureromance.com 10 2026-04-14 2026-08-11 ok

Programmatic access, with DNS A records: API GET /v1/hosts/pureromance.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/pureromance.com.