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.

5 hosts · 244 ms

HostCertsFirst seenLast seen
faircredit.ch 2 2025-09-08 2026-09-09
backoffice.faircredit.ch 4 2026-04-14 2026-08-11
dev.faircredit.ch 4 2026-04-14 2026-08-11
backoffice.dev.faircredit.ch 5 2026-05-26 2026-09-22
www.faircredit.ch 2 2025-09-08 2026-09-09

Programmatic access: API GET /v1/hosts/faircredit.ch (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/faircredit.ch.