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 · 299 ms

HostCertsFirst seenLast seenDNS
nakedandthriving.com 19 2026-04-12 2026-09-26 ok
*.nakedandthriving.com 14 2026-04-12 2026-09-26 —
ca.nakedandthriving.com 4 2026-04-17 2026-08-14 ok
ssc.nakedandthriving.com 2 2026-08-31 2026-08-31 —
blog.nakedandthriving.com 2 2026-06-09 2026-06-09 nxdomain
thebarebeautybabesblog.nakedandthriving.com 3 2026-06-10 2026-08-09 ok
redtrack.nakedandthriving.com 2 2026-05-11 2026-05-11 ok
clinical.nakedandthriving.com 13 2026-05-18 2026-09-13 ok
shop.nakedandthriving.com 2 2026-08-21 2026-08-21 ok
refer.nakedandthriving.com 1 2025-10-23 2025-10-23 ok
mta-sts.nakedandthriving.com 2 2026-05-31 2026-08-11 ok
us.nakedandthriving.com 4 2026-04-12 2026-08-10 ok
support.nakedandthriving.com 5 2026-04-26 2026-08-24 ok
www.nakedandthriving.com 4 2026-04-14 2026-08-12 ok

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