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.

12 hosts · 380 ms

HostCertsFirst seenLast seenDNS
virgingifts.com 41 2025-08-25 2026-09-28 ok
*.virgingifts.com 35 2025-08-25 2026-09-28 —
staging.virgingifts.com 5 2026-05-16 2026-09-15 ok
emails.reach.virgingifts.com 5 2026-05-16 2026-09-13 ok
emails.talk.virgingifts.com 4 2026-06-04 2026-10-02 ok
emails.comm.virgingifts.com 5 2026-05-03 2026-08-31 ok
trk.usm.virgingifts.com 6 2026-05-10 2026-09-05 ok
emails.intro.virgingifts.com 7 2026-04-29 2026-09-11 ok
help.virgingifts.com 6 2026-06-03 2026-10-01 ok
emails.buss.virgingifts.com 5 2026-04-26 2026-08-24 ok
qa-lotus.virgingifts.com 5 2026-06-01 2026-10-04 ok
www.virgingifts.com 5 2026-05-01 2026-09-02 ok

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