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 · 267 ms

Download CSV
HostCertsFirst seenLast seen
oakseedvc.com 1 2025-12-13 2025-12-13
clic.oakseedvc.com 1 2026-05-20 2026-05-20
www.clic.oakseedvc.com 1 2026-05-20 2026-05-20
cn.oakseedvc.com 1 2025-12-13 2025-12-13
www.cn.oakseedvc.com 1 2025-12-13 2025-12-13
studio.oakseedvc.com 1 2025-10-16 2025-10-16
www.studio.oakseedvc.com 1 2025-10-16 2025-10-16
investor.oakseedvc.com 2 2025-09-13 2026-09-14
www.investor.oakseedvc.com 2 2025-09-13 2026-09-14
www.oakseedvc.com 1 2025-12-13 2025-12-13

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