Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

6 hosts · 229 ms

HostCertsFirst seenLast seen
dedoles.com 19 2026-04-24 2026-09-21
*.dedoles.com 8 2026-04-24 2026-08-19
la.dedoles.com 1 2026-01-25 2026-01-25
b2b.dedoles.com 11 2026-05-04 2026-09-14
test.dedoles.com 11 2026-05-01 2026-09-09
www.dedoles.com 16 2026-05-07 2026-09-17

Programmatic access: API GET /v1/hosts/dedoles.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/dedoles.com.