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.

15 hosts · 280 ms

HostCertsFirst seenLast seenDNS
nameit.com 7 2025-10-28 2026-09-07 ok
agcmtb.nameit.com 4 2026-05-24 2026-09-30 ok
image.e.nameit.com 2 2025-07-12 2026-07-30 ok
de.nameit.com 7 2025-10-28 2026-09-07 ok
se.nameit.com 7 2025-10-28 2026-09-07 ok
staging.nameit.com 8 2026-04-27 2026-08-23 ok
imagebank.nameit.com 5 2026-05-02 2026-09-03 ok
nl.nameit.com 7 2025-10-28 2026-09-07 ok
no.nameit.com 7 2025-10-28 2026-09-07 ok
mta-sts.nameit.com 2 2026-05-30 2026-08-09 ok
development.nameit.com 8 2026-04-26 2026-08-23 ok
support.nameit.com 7 2026-05-12 2026-09-11 ok
sst.nameit.com 5 2026-04-14 2026-09-24 ok
www.nameit.com 10 2026-04-27 2026-08-23 ok
play.nameit.com 2 2026-03-04 2026-07-20 ok

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