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 · 251 ms

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HostCertsFirst seenLast seen
thecoterie.me 3 2025-07-03 2026-07-04
*.thecoterie.me 3 2025-07-03 2026-07-04
extemail.thecoterie.me 2 2026-05-17 2026-10-17
trust.thecoterie.me 16 2026-05-22 2026-09-17
pay.thecoterie.me 13 2026-04-22 2026-10-16

Programmatic access: API GET /v1/hosts/thecoterie.me (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/thecoterie.me.