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.

4 hosts · 155 ms

HostCertsFirst seenLast seen
dataprivacy.spglobal.com 2 2025-11-09 2026-10-10
*.dataprivacy.spglobal.com 2 2025-11-09 2026-10-10
qx.dataprivacy.spglobal.com 3 2025-06-24 2026-07-24
*.qx.dataprivacy.spglobal.com 2 2025-06-24 2026-05-25

Programmatic access: API GET /v1/hosts/dataprivacy.spglobal.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/dataprivacy.spglobal.com.