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.

16 hosts · 296 ms

HostCertsFirst seenLast seenDNS
venneir.com 14 2026-05-18 2026-09-28 ok
lounge.venneir.com 5 2026-04-28 2026-08-30 ok
kulture.venneir.com 2 2026-10-02 2026-10-02 ok
book.venneir.com 5 2026-05-05 2026-09-05 ok
meridian.venneir.com 4 2026-04-11 2026-08-14 ok
join.venneir.com 5 2026-05-05 2026-09-02 ok
loop.venneir.com 1 2026-09-29 2026-09-29 ok
wholestar.venneir.com 3 2026-09-30 2026-09-30 ok
trackstar.venneir.com 1 2026-09-19 2026-09-19 ok
threads.venneir.com 1 2026-08-14 2026-08-14 ok
aligners.venneir.com 1 2026-08-14 2026-08-14 ok
checkpoint.venneir.com 5 2026-05-07 2026-09-08 ok
myaccount.venneir.com 16 2026-04-16 2026-09-26 ok
www.venneir.com 14 2026-05-17 2026-09-26 ok
telemetry.venneir.com 1 2026-09-01 2026-09-01 ok
glossy.venneir.com 1 2026-09-13 2026-09-13 ok

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