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 · 269 ms

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HostCertsFirst seenLast seen
kimbino.sk 16 2026-04-30 2026-10-10
*.kimbino.sk 16 2026-04-30 2026-10-10
api.sfo.kimbino.sk 5 2026-05-16 2026-09-14
*.api.sfo.kimbino.sk 5 2026-05-16 2026-09-14
api.ams.kimbino.sk 5 2026-05-14 2026-09-11
*.api.ams.kimbino.sk 5 2026-05-14 2026-09-11
api.dev.kimbino.sk 5 2026-05-15 2026-09-13
*.api.dev.kimbino.sk 5 2026-05-15 2026-09-13

Programmatic access: API GET /v1/hosts/kimbino.sk (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/kimbino.sk.