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.

8 hosts · 285 ms

Download CSV
HostCertsFirst seenLast seen
brandit.com 8 2025-09-29 2026-10-16
*.brandit.com 3 2025-09-29 2026-10-16
legal-in-digital.brandit.com 5 2026-05-25 2026-09-22
www.legal-in-digital.brandit.com 5 2026-05-25 2026-09-22
portal.brandit.com 5 2026-04-23 2026-08-21
img.automation.brandit.com 8 2026-05-07 2026-09-02
r.automation.brandit.com 3 2026-06-15 2026-09-04
www.brandit.com 5 2026-04-23 2026-08-21

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