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.

4 hosts · 306 ms

Download CSV
HostCertsFirst seenLast seen
cloud.email.directv-mail.com 2 2026-04-29 2026-09-30
image.email.directv-mail.com 2 2026-05-07 2026-05-07
click.email.directv-mail.com 2 2026-04-29 2026-09-30
view.email.directv-mail.com 2 2026-05-11 2026-10-12

Programmatic access: API GET /v1/hosts/email.directv-mail.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.directv-mail.com.