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.

23 hosts · 178 ms

HostCertsFirst seenLast seen
uat.spglobal.com 12 2026-01-30 2026-08-26
id.uat.spglobal.com 6 2025-09-15 2026-09-02
openid.uat.spglobal.com 4 2025-10-12 2026-01-29
reserve.uat.spglobal.com 2 2025-09-15 2026-09-02
nametag.uat.spglobal.com 1 2025-11-24 2025-11-24
api-uci.uat.spglobal.com 2 2026-09-01 2026-09-01
api.uat.spglobal.com 3 2025-09-15 2026-09-02
eks.api.uat.spglobal.com 1 2025-10-27 2025-10-27
admin.uat.spglobal.com 2 2025-09-15 2026-09-02
eks.admin.uat.spglobal.com 1 2025-10-27 2025-10-27
spgldap.uat.spglobal.com 2 2025-09-15 2026-09-02
ratingsldap.uat.spglobal.com 2 2025-09-15 2026-09-02
spgdevldap.uat.spglobal.com 2 2025-09-15 2026-09-02
okta-mcp.uat.spglobal.com 2 2026-01-27 2026-01-27
apieast.uat.spglobal.com 2 2025-09-15 2026-09-02
oudawseast.uat.spglobal.com 2 2025-09-15 2026-09-02
api-uci-west.uat.spglobal.com 2 2026-09-01 2026-09-01
api.uci-west.uat.spglobal.com 1 2026-09-14 2026-09-14
apiwest.uat.spglobal.com 2 2025-09-15 2026-09-02
adminwest.uat.spglobal.com 2 2025-09-15 2026-09-02
oudawswest.uat.spglobal.com 2 2025-09-15 2026-09-02
preview.uat.spglobal.com 4 2026-08-26 2026-08-26
spgldapaz.uat.spglobal.com 2 2025-09-15 2026-09-02

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