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.

4 hosts · 391 ms

HostCertsFirst seenLast seenDNS
pipettebaby.com 13 2026-05-16 2026-09-27 ok
shop.pipettebaby.com 5 2026-04-28 2026-08-28 ok
account.pipettebaby.com 14 2026-04-17 2026-08-16 ok
www.pipettebaby.com 15 2026-05-16 2026-09-27 ok

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