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.

23 hosts · 157 ms

HostCertsFirst seenLast seen
jud.ct.gov 2 2025-10-20 2026-02-23
*.jud.ct.gov 1 2025-10-20 2025-10-20
secure.jud.ct.gov 1 2026-04-21 2026-04-21
www.secure.jud.ct.gov 1 2026-04-21 2026-04-21
vpn.jud.ct.gov 3 2025-09-12 2026-10-05
www.vpn.jud.ct.gov 3 2025-09-12 2026-10-05
secvpn.jud.ct.gov 1 2026-04-21 2026-04-21
www.secvpn.jud.ct.gov 1 2026-04-21 2026-04-21
pdvpn.jud.ct.gov 1 2026-04-21 2026-04-21
www.pdvpn.jud.ct.gov 1 2026-04-21 2026-04-21
dcjvpn.jud.ct.gov 2 2025-09-12 2026-10-05
www.dcjvpn.jud.ct.gov 2 2025-09-12 2026-10-05
hybridmail.connapp.jud.ct.gov 1 2025-12-22 2025-12-22
connappmail.connapp.jud.ct.gov 1 2025-12-22 2025-12-22
webmailconnapp.connapp.jud.ct.gov 1 2025-12-22 2025-12-22
autodiscover.connapp.jud.ct.gov 1 2025-12-22 2025-12-22
legacy.connapp.jud.ct.gov 1 2025-12-22 2025-12-22
eservices.jud.ct.gov 2 2025-06-17 2026-07-06
*.eservices.jud.ct.gov 2 2025-06-17 2026-07-06
ctbaradmissions.jud.ct.gov 3 2026-05-07 2026-08-23
courtguest.jud.ct.gov 1 2026-02-05 2026-02-05
www.courtguest.jud.ct.gov 1 2026-02-05 2026-02-05
www.jud.ct.gov 1 2026-02-23 2026-02-23

Programmatic access: API GET /v1/hosts/jud.ct.gov (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/jud.ct.gov.