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.

7 hosts · 186 ms

HostCertsFirst seenLast seen
missmary.se 7 2026-05-28 2026-09-25
dynamics365.missmary.se 1 2026-05-27 2026-05-27
*.dynamics365.missmary.se 1 2026-05-27 2026-05-27
erp-admin.missmary.se 5 2026-04-23 2026-08-21
analytics.missmary.se 4 2026-04-26 2026-10-06
www.missmary.se 7 2026-05-28 2026-09-25
staging2-www.missmary.se 5 2026-05-13 2026-09-10

Programmatic access: API GET /v1/hosts/missmary.se (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/missmary.se.