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.

14 hosts · 316 ms

HostCertsFirst seenLast seenDNS
audionova.com 8 2025-07-28 2026-09-20 ok
*.audionova.com 2 2025-07-28 2026-08-25 —
lyric.audionova.com 5 2026-05-02 2026-08-29 ok
hearing.audionova.com 16 2026-04-11 2026-10-05 ok
amplifi.audionova.com 2 2026-02-22 2026-06-15 ok
referral.audionova.com 14 2026-04-13 2026-08-10 ok
email.audionova.com 6 2026-05-08 2026-09-03 ok
eform.audionova.com 3 2026-04-28 2026-08-26 ok
info.audionova.com 16 2026-04-22 2026-08-18 ok
shop.audionova.com 22 2026-04-12 2026-09-26 ok
mcprod.shop.audionova.com 4 2026-05-11 2026-07-10 nodata
mcstaging.shop.audionova.com 6 2026-06-16 2026-07-30 ok
forms.audionova.com 3 2026-05-23 2026-09-11 ok
www.audionova.com 1 2026-05-19 2026-05-19 ok

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