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.

11 hosts · 362 ms

HostCertsFirst seenLast seenDNS
e-vanguard.com 1 2026-08-04 2026-08-04 ok
cloud.e-vanguard.com 3 2025-09-04 2026-08-22 ok
image.e-vanguard.com 3 2026-03-23 2026-08-10 ok
click.e-vanguard.com 3 2025-09-04 2026-08-22 ok
data.investor.e-vanguard.com 2 2026-05-27 2026-05-27 ok
cdn.investor.e-vanguard.com 3 2025-06-10 2026-09-24 ok
pages.e-vanguard.com 2 2025-07-21 2026-07-08 ok
image.test.e-vanguard.com 4 2026-08-27 2026-09-29 ok
click.test.e-vanguard.com 2 2026-08-27 2026-08-27 ok
view.test.e-vanguard.com 2 2026-08-27 2026-08-27 ok
view.e-vanguard.com 3 2025-09-04 2026-08-22 ok

Programmatic access, with DNS A records: API GET /v1/hosts/e-vanguard.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/e-vanguard.com.