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.

6 hosts · 238 ms

HostCertsFirst seenLast seenDNS
laudaeurope.com 4 2025-10-28 2026-09-29 ok
oat.laudaeurope.com 4 2025-10-28 2026-09-29 nxdomain
uat.laudaeurope.com 4 2025-10-28 2026-09-29 nxdomain
sit.laudaeurope.com 4 2025-10-28 2026-09-29 nxdomain
dev.laudaeurope.com 4 2025-10-28 2026-09-29 nxdomain
www.laudaeurope.com 4 2025-10-28 2026-09-29 ok

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