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.

11 hosts · 271 ms

HostCertsFirst seenLast seenDNS
moritzlegal.com 16 2026-05-04 2026-09-01 ok
*.moritzlegal.com 4 2026-06-23 2026-08-12 —
auth.moritzlegal.com 6 2026-06-08 2026-08-06 ok
design.moritzlegal.com 1 2026-05-27 2026-05-27 ok
p.moritzlegal.com 8 2026-05-03 2026-08-29 ok
app.moritzlegal.com 2 2026-04-28 2026-05-02 ok
staging-app.moritzlegal.com 2 2026-04-28 2026-04-30 ok
ci-app.moritzlegal.com 3 2026-05-02 2026-09-09 ok
ci-alt-app.moritzlegal.com 5 2026-05-02 2026-09-13 ok
trust.moritzlegal.com 5 2026-05-27 2026-09-27 ok
www.moritzlegal.com 19 2026-05-04 2026-09-01 ok

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