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.

4 hosts · 322 ms

HostCertsFirst seenLast seen
dessertcandles.com 11 2026-05-17 2026-09-26
email.dessertcandles.com 2 2026-01-29 2026-01-30
www.email.dessertcandles.com 2 2026-01-29 2026-01-30
www.dessertcandles.com 17 2026-05-18 2026-09-27

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