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 · 248 ms

HostCertsFirst seenLast seenDNS
admagazine.com 4 2026-01-05 2026-07-17 ok
*.admagazine.com 7 2025-10-29 2026-07-17 —
c2.admagazine.com 1 2026-05-06 2026-05-06 ok
media.admagazine.com 5 2025-07-30 2026-08-26 ok
stag-media.admagazine.com 5 2025-07-30 2026-08-26 ok
c.admagazine.com 1 2026-05-06 2026-05-06 ok
qc.admagazine.com 10 2025-09-23 2026-08-24 ok
interactive.admagazine.com 1 2026-06-30 2026-06-30 ok
stag.admagazine.com 2 2026-03-01 2026-07-17 ok
interactive-stag.admagazine.com 3 2026-06-16 2026-06-18 ok
link.admagazine.com 5 2026-04-30 2026-08-28 ok
eventos.admagazine.com 4 2026-04-17 2026-08-15 ok

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