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.

14 hosts · 160 ms

HostCertsFirst seenLast seen
capitaliqstg.spglobal.com 2 2026-01-25 2026-01-25
ca.capitaliqstg.spglobal.com 6 2025-10-25 2026-09-09
rt-api-platform.capitaliqstg.spglobal.com 2 2026-01-25 2026-01-25
www-as-origin.capitaliqstg.spglobal.com 2 2026-01-25 2026-01-25
www-av-origin.capitaliqstg.spglobal.com 2 2026-01-25 2026-01-25
www-origin.capitaliqstg.spglobal.com 2 2026-01-25 2026-01-25
www-1-as.capitaliqstg.spglobal.com 3 2025-11-13 2026-01-25
www-2-as.capitaliqstg.spglobal.com 2 2026-01-25 2026-01-25
www-as.capitaliqstg.spglobal.com 7 2025-11-13 2026-09-09
apps.capitaliqstg.spglobal.com 6 2025-10-25 2026-09-09
www-1-av.capitaliqstg.spglobal.com 3 2025-11-13 2026-01-25
www-2-av.capitaliqstg.spglobal.com 3 2025-11-13 2026-01-25
www-av.capitaliqstg.spglobal.com 7 2025-11-13 2026-09-09
www.capitaliqstg.spglobal.com 10 2025-10-25 2026-09-09

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