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.

10 hosts · 233 ms

HostCertsFirst seenLast seen
tensquaregames.com 4 2026-05-31 2026-08-18
*.tensquaregames.com 4 2026-05-31 2026-08-18
*.office.tensquaregames.com 4 2026-05-31 2026-08-18
store.tensquaregames.com 5 2026-05-25 2026-09-22
career.tensquaregames.com 5 2026-05-04 2026-09-01
www.career.tensquaregames.com 5 2026-06-03 2026-10-01
*.apps.tensquaregames.com 4 2026-05-31 2026-08-18
*.servers.tensquaregames.com 4 2026-05-31 2026-08-18
*.devs.tensquaregames.com 4 2026-05-31 2026-08-18
*.pay.tensquaregames.com 2 2026-04-27 2026-04-27

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