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.

7 hosts · 331 ms

HostCertsFirst seenLast seenDNS
nuropod.com 22 2026-05-04 2026-09-30 ok
*.nuropod.com 10 2026-04-13 2026-09-30 —
link.nuropod.com 5 2026-05-05 2026-08-31 ok
trk.nuropod.com 10 2026-04-11 2026-10-05 ok
app.nuropod.com 3 2026-06-30 2026-08-28 ok
account.nuropod.com 4 2026-04-14 2026-08-12 ok
www.nuropod.com 11 2026-05-11 2026-09-23 ok

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