Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

24 hosts · 465 ms

HostCertsFirst seenLast seenDNS
ibji.com 7 2026-03-16 2026-09-02 ok
*.ibji.com 3 2026-03-19 2026-09-02 —
vpn2.ibji.com 5 2026-05-08 2026-09-05 ok
exa.ibji.com 4 2026-03-31 2026-09-14 ok
www.exa.ibji.com 4 2026-03-31 2026-09-14 nxdomain
epic.ibji.com 4 2025-08-21 2026-08-22 ok
www.epic.ibji.com 4 2025-08-21 2026-08-22 nxdomain
orthosync.ibji.com 5 2026-05-15 2026-09-14 ok
www.orthosync.ibji.com 5 2026-05-15 2026-09-14 ok
dash.ibji.com 3 2026-05-12 2026-08-30 ok
vpn.ibji.com 5 2026-04-24 2026-08-22 ok
go.ibji.com 10 2026-04-23 2026-08-20 ok
ftp.ibji.com 1 2026-05-03 2026-05-03 ok
www.ftp.ibji.com 1 2026-05-03 2026-05-03 nxdomain
apps.ibji.com 1 2025-10-13 2025-10-13 ok
www.apps.ibji.com 1 2025-10-13 2025-10-13 nxdomain
mychart.ibji.com 4 2026-04-16 2026-09-30 ok
www.mychart.ibji.com 4 2026-04-16 2026-09-30 nxdomain
exatest.ibji.com 4 2025-07-27 2026-07-27 ok
www.exatest.ibji.com 4 2025-07-27 2026-07-27 nxdomain
scout.ibji.com 8 2026-04-23 2026-08-19 ok
ov.ibji.com 2 2025-11-05 2025-11-19 ok
www.ov.ibji.com 2 2025-11-05 2025-11-19 nxdomain
www.ibji.com 4 2026-03-16 2026-08-30 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ibji.com (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/ibji.com.