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.

6 hosts · 169 ms

HostCertsFirst seenLast seen
ptotjinzaibank.com 5 2025-11-13 2026-05-10
*.ptotjinzaibank.com 4 2025-11-13 2026-02-14
edge.ptotjinzaibank.com 2 2025-10-09 2026-09-09
*.edge.ptotjinzaibank.com 2 2025-10-09 2026-09-09
development.ptotjinzaibank.com 4 2025-10-09 2026-09-09
*.development.ptotjinzaibank.com 4 2025-10-09 2026-09-09

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