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.

23 hosts · 366 ms

HostCertsFirst seenLast seenDNS
nanit.com 22 2025-12-02 2026-09-27 ok
*.nanit.com 4 2025-11-30 2026-04-06 —
storeca.nanit.com 13 2026-05-16 2026-09-26 ok
mg.message.nanit.com 4 2026-04-17 2026-08-15 ok
store.nanit.com 11 2026-05-16 2026-09-27 ok
community-staging.nanit.com 14 2026-05-06 2026-09-01 ok
engineering.nanit.com 3 2026-04-23 2026-09-03 ok
storeuk.nanit.com 25 2026-05-18 2026-09-27 ok
internal.nanit.com 10 2026-04-06 2026-09-30 nxdomain
*.internal.nanit.com 12 2026-04-06 2026-09-30 —
d.email.nanit.com 16 2026-04-12 2026-08-08 ok
e.email.nanit.com 14 2026-04-11 2026-08-07 ok
se.email.nanit.com 20 2026-04-10 2026-10-04 ok
mg.email.nanit.com 4 2026-04-17 2026-08-15 ok
smpql.nanit.com 7 2026-07-30 2026-09-27 ok
dam.nanit.com 2 2026-04-08 2026-09-08 ok
showroom.nanit.com 1 2026-08-29 2026-08-29 ok
sting-validation.nanit.com 5 2026-05-11 2026-09-24 ok
refer.nanit.com 1 2026-01-16 2026-01-16 ok
status.nanit.com 2 2025-08-10 2026-07-09 ok
support.nanit.com 5 2025-10-16 2026-10-04 ok
www.nanit.com 15 2026-04-13 2026-09-25 ok
community.nanit.com 14 2026-05-06 2026-09-02 ok

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