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.

5 hosts · 258 ms

HostCertsFirst seenLast seenDNS
cloud.email.pods.com 3 2025-07-31 2026-07-29 ok
image.email.pods.com 3 2026-02-14 2026-05-05 ok
click.email.pods.com 1 2026-01-21 2026-01-21 ok
pages.email.pods.com 1 2026-01-21 2026-01-21 ok
view.email.pods.com 1 2026-01-21 2026-01-21 ok

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