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 · 243 ms

HostCertsFirst seenLast seen
cloud.email.mercedes-benz.nl 2 2026-04-19 2026-09-22
image.email.mercedes-benz.nl 3 2026-01-06 2026-02-12
click.email.mercedes-benz.nl 3 2026-04-19 2026-09-20
view.email.mercedes-benz.nl 2 2026-04-17 2026-09-18

Programmatic access: API GET /v1/hosts/email.mercedes-benz.nl (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.mercedes-benz.nl.