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.

22 hosts · 208 ms

HostCertsFirst seenLast seen
inteligo.pl 1 2025-11-04 2025-11-04
auth.inteligo.pl 1 2025-11-12 2025-11-12
fallback.auth.inteligo.pl 1 2025-11-12 2025-11-12
www.fallback.auth.inteligo.pl 1 2025-11-12 2025-11-12
www.auth.inteligo.pl 1 2025-11-12 2025-11-12
ui.sandbox.api.inteligo.pl 1 2025-11-12 2025-11-12
www.ui.sandbox.api.inteligo.pl 1 2025-11-12 2025-11-12
3dssdk.inteligo.pl 1 2025-11-12 2025-11-12
www.3dssdk.inteligo.pl 1 2025-11-12 2025-11-12
m.inteligo.pl 4 2025-09-22 2026-06-23
www.m.inteligo.pl 4 2025-09-22 2026-06-23
junior.inteligo.pl 1 2025-12-05 2025-12-05
www.junior.inteligo.pl 1 2025-12-05 2025-12-05
3ds.inteligo.pl 1 2025-11-12 2025-11-12
www.3ds.inteligo.pl 1 2025-11-12 2025-11-12
developers.inteligo.pl 1 2025-11-12 2025-11-12
www.developers.inteligo.pl 1 2025-11-12 2025-11-12
kontakt.inteligo.pl 1 2025-12-05 2025-12-05
www.kontakt.inteligo.pl 1 2025-12-05 2025-12-05
r35a2u.inteligo.pl 2 2025-09-22 2026-09-09
www.r35a2u.inteligo.pl 2 2025-09-22 2026-09-09
www.inteligo.pl 1 2025-11-04 2025-11-04

Programmatic access: API GET /v1/hosts/inteligo.pl (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/inteligo.pl.