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.

8 hosts · 222 ms

HostCertsFirst seenLast seen
disnat.com 14 2025-09-09 2026-09-15
secure.disnat.com 8 2025-07-10 2026-09-15
ouverturedecompte.disnat.com 6 2025-07-10 2026-07-14
accountopening.disnat.com 6 2025-07-10 2026-07-14
communication.disnat.com 1 2026-04-01 2026-04-01
www.communication.disnat.com 1 2026-04-01 2026-04-01
www.disnat.com 9 2025-07-10 2026-08-24
custdeny.disnat.com 4 2025-07-10 2026-07-14

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