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.

8 hosts · 292 ms

HostCertsFirst seenLast seen
l8group.net 34 2026-03-13 2026-10-07
*.l8group.net 34 2026-03-13 2026-10-07
squad.l8group.net 4 2026-06-11 2026-09-29
pdflgpd.l8group.net 2 2026-06-23 2026-06-23
auth.l8group.net 1 2026-09-03 2026-09-03
pdfsign.l8group.net 1 2026-06-15 2026-06-15
ecorodovias.veicular.l8group.net 5 2026-04-23 2026-08-20
agents.l8group.net 2 2026-07-03 2026-08-26

Programmatic access: API GET /v1/hosts/l8group.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/l8group.net.