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.

6 hosts · 324 ms

HostCertsFirst seenLast seen
email.audio-technica.eu 27 2026-04-22 2026-10-02
*.email.audio-technica.eu 18 2026-04-23 2026-10-02
distribution.audio-technica.eu 9 2026-04-18 2026-09-19
orders.audio-technica.eu 28 2026-04-22 2026-10-02
*.orders.audio-technica.eu 16 2026-06-04 2026-10-02
mta-sts.audio-technica.eu 3 2026-05-01 2026-10-01

Programmatic access: API GET /v1/hosts/audio-technica.eu (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/audio-technica.eu.