Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

15 hosts · 277 ms

Download CSV
HostCertsFirst seenLast seen
naturaldog.com 32 2026-05-06 2026-10-08
*.naturaldog.com 18 2026-05-06 2026-09-30
email.msg.naturaldog.com 5 2026-05-02 2026-08-30
i.naturaldog.com 4 2026-06-08 2026-10-06
portal.naturaldog.com 14 2026-04-18 2026-10-15
vet-portal.naturaldog.com 3 2026-06-17 2026-08-17
promo.naturaldog.com 10 2026-04-24 2026-08-21
shop.naturaldog.com 13 2026-05-17 2026-09-27
sp.naturaldog.com 2 2026-04-30 2026-09-30
careers.naturaldog.com 1 2026-07-23 2026-07-23
get.naturaldog.com 4 2026-06-07 2026-10-09
account.naturaldog.com 16 2026-04-26 2026-10-08
www.naturaldog.com 13 2026-05-30 2026-10-10
giveaway.naturaldog.com 10 2026-05-21 2026-08-06
try.naturaldog.com 5 2026-04-21 2026-08-23

Programmatic access: API GET /v1/hosts/naturaldog.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/naturaldog.com.