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.

12 hosts · 226 ms

HostCertsFirst seenLast seen
exeo.net 24 2026-05-22 2026-09-18
*.exeo.net 24 2026-05-22 2026-09-18
grchub.exeo.net 10 2026-05-11 2026-09-06
of.exeo.net 5 2026-05-05 2026-09-02
msblog.exeo.net 3 2026-05-03 2026-08-20
trail.exeo.net 2 2026-06-07 2026-06-07
app.exeo.net 2 2026-05-23 2026-05-23
pages.exeo.net 4 2026-05-26 2026-07-25
sales.exeo.net 4 2026-05-31 2026-09-18
freeradius.exeo.net 1 2025-06-24 2025-06-24
git.exeo.net 3 2026-06-30 2026-08-28
registry.exeo.net 3 2026-06-30 2026-08-28

Programmatic access: API GET /v1/hosts/exeo.net (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/exeo.net.