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.

14 hosts · 318 ms

HostCertsFirst seenLast seenDNS
settlementagreement.com 12 2026-05-24 2026-09-19 ok
*.settlementagreement.com 12 2026-05-24 2026-09-19 —
intake.settlementagreement.com 3 2026-07-29 2026-09-21 ok
people.settlementagreement.com 10 2026-05-21 2026-09-18 ok
briefcase.settlementagreement.com 3 2026-07-29 2026-09-21 ok
drive.settlementagreement.com 10 2026-04-22 2026-08-21 ok
email.ys5p1h.settlementagreement.com 5 2026-05-15 2026-09-12 ok
handbook.settlementagreement.com 12 2026-04-25 2026-10-05 ok
sign.settlementagreement.com 8 2026-06-04 2026-10-02 ok
join.settlementagreement.com 2 2026-06-23 2026-08-16 ok
jobs.settlementagreement.com 6 2026-06-29 2026-08-28 ok
referrals.settlementagreement.com 4 2026-04-11 2026-08-08 ok
forms.settlementagreement.com 10 2026-04-19 2026-08-17 ok
trust.settlementagreement.com 11 2026-06-01 2026-09-27 ok

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