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 · 237 ms

HostCertsFirst seenLast seen
client.beneva.ca 1 2026-06-12 2026-06-12
m.client.beneva.ca 1 2026-06-12 2026-06-12
res.client.beneva.ca 1 2026-06-12 2026-06-12
t.client.beneva.ca 1 2026-06-12 2026-06-12

Programmatic access: API GET /v1/hosts/client.beneva.ca (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/client.beneva.ca.