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.

4 hosts · 226 ms

HostCertsFirst seenLast seen
gjensidige.ee 17 2025-11-28 2026-10-04
*.gjensidige.ee 17 2025-11-28 2026-10-04
e.gjensidige.ee 1 2025-11-13 2025-11-13
www.e.gjensidige.ee 1 2025-11-13 2025-11-13

Programmatic access: API GET /v1/hosts/gjensidige.ee (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/gjensidige.ee.