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.

3 hosts · 239 ms

HostCertsFirst seenLast seenDNS
afrocafe.at 3 2025-11-23 2026-09-25 ok
qm.afrocafe.at 1 2026-02-08 2026-02-08 ok
www.afrocafe.at 3 2025-11-23 2026-09-25 ok

Programmatic access, with DNS A records: API GET /v1/hosts/afrocafe.at (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/afrocafe.at.