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.

17 hosts · 359 ms

HostCertsFirst seenLast seenDNS
dryrobe.com 22 2026-04-12 2026-09-25 ok
*.dryrobe.com 5 2026-05-13 2026-09-12 —
b2b.dryrobe.com 11 2026-04-16 2026-09-28 ok
account.b2b.dryrobe.com 13 2026-04-16 2026-09-28 ok
usab2b.dryrobe.com 15 2026-04-13 2026-08-22 ok
track.dryrobe.com 13 2026-06-05 2026-10-02 ok
fwtrack.dryrobe.com 5 2026-04-24 2026-08-22 ok
1passwordscim.dryrobe.com 33 2026-05-02 2026-09-19 ok
help.dryrobe.com 4 2026-05-21 2026-07-20 ok
pages.dryrobe.com 2 2026-08-19 2026-08-19 ok
us.dryrobe.com 13 2026-05-18 2026-09-28 ok
account.us.dryrobe.com 18 2026-05-17 2026-09-27 ok
account.dryrobe.com 15 2026-05-17 2026-09-28 ok
support.dryrobe.com 10 2026-05-05 2026-09-01 ok
eu.dryrobe.com 11 2026-05-04 2026-09-15 ok
account.eu.dryrobe.com 13 2026-05-18 2026-09-25 ok
www.dryrobe.com 13 2026-05-23 2026-10-03 ok

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