Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

6 hosts · 297 ms

HostCertsFirst seenLast seenDNS
vspink.com 20 2026-05-23 2026-09-23 ok
*.vspink.com 18 2026-05-23 2026-09-19 —
image.e2.vspink.com 2 2025-12-22 2025-12-22 ok
click.e2.vspink.com 2 2026-03-03 2026-08-07 ok
pages.e2.vspink.com 2 2026-03-03 2026-08-04 ok
view.e2.vspink.com 2 2026-03-03 2026-08-04 ok

Programmatic access, with DNS A records: API GET /v1/hosts/vspink.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/vspink.com.