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.

5 hosts · 259 ms

HostCertsFirst seenLast seen
cloud.mail.edelmanfinancialengines.com 1 2025-07-15 2025-07-15
image.mail.edelmanfinancialengines.com 2 2026-01-07 2026-06-29
click.mail.edelmanfinancialengines.com 4 2025-07-15 2026-08-31
pages.mail.edelmanfinancialengines.com 2 2025-07-15 2026-07-03
view.mail.edelmanfinancialengines.com 2 2025-07-15 2026-07-03

Programmatic access: API GET /v1/hosts/mail.edelmanfinancialengines.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/mail.edelmanfinancialengines.com.