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.

80 hosts · 329 ms

HostCertsFirst seenLast seenDNS
ownerrez.com 3 2025-08-22 2026-07-22 ok
*.ownerrez.com 4 2025-08-22 2026-07-22 —
hostedtest-prod2.ownerrez.com 2 2025-08-05 2026-07-06 ok
*.hostedtest-prod2.ownerrez.com 2 2025-08-05 2026-07-06 —
portaltest-prod2.ownerrez.com 2 2025-08-05 2026-07-06 ok
*.portaltest-prod2.ownerrez.com 2 2025-08-05 2026-07-06 —
hostedorigintest-prod2.ownerrez.com 1 2026-06-11 2026-06-11 ok
portalorigintest-prod2.ownerrez.com 1 2026-06-11 2026-06-11 ok
hostedtest-a.ownerrez.com 7 2026-04-20 2026-09-20 ok
*.hostedtest-a.ownerrez.com 2 2026-04-20 2026-09-20 —
portaltest-a.ownerrez.com 8 2026-04-14 2026-09-29 ok
*.portaltest-a.ownerrez.com 2 2026-04-20 2026-09-20 —
hostedorigintest-a.ownerrez.com 1 2026-06-15 2026-06-15 ok
portalorigintest-a.ownerrez.com 1 2026-06-15 2026-06-15 ok
hostedtest-b.ownerrez.com 10 2026-04-20 2026-09-25 ok
*.hostedtest-b.ownerrez.com 2 2026-04-20 2026-09-20 —
portaltest-b.ownerrez.com 8 2026-04-20 2026-09-20 ok
*.portaltest-b.ownerrez.com 2 2026-04-20 2026-09-20 —
hostedorigintest-b.ownerrez.com 1 2026-06-11 2026-06-11 ok
portalorigintest-b.ownerrez.com 1 2026-06-11 2026-06-11 ok
hostedtest-c.ownerrez.com 8 2026-04-19 2026-09-19 ok
*.hostedtest-c.ownerrez.com 2 2026-04-19 2026-09-19 —
portaltest-c.ownerrez.com 9 2026-04-19 2026-09-28 ok
*.portaltest-c.ownerrez.com 2 2026-04-19 2026-09-19 —
hostedorigintest-c.ownerrez.com 1 2026-06-11 2026-06-11 ok
portalorigintest-c.ownerrez.com 1 2026-06-11 2026-06-11 ok
hostedtest-d.ownerrez.com 8 2026-04-14 2026-09-15 ok
*.hostedtest-d.ownerrez.com 2 2026-04-15 2026-09-15 —
portaltest-d.ownerrez.com 8 2026-04-15 2026-09-15 ok
*.portaltest-d.ownerrez.com 2 2026-04-15 2026-09-15 —
hostedorigintest-d.ownerrez.com 1 2026-06-11 2026-06-11 ok
portalorigintest-d.ownerrez.com 1 2026-06-11 2026-06-11 ok
hosted.ownerrez.com 6 2026-02-24 2026-07-31 ok
*.hosted.ownerrez.com 2 2026-02-24 2026-07-12 —
hostedtest-prod.ownerrez.com 8 2026-04-21 2026-09-21 ok
*.hostedtest-prod.ownerrez.com 2 2026-04-21 2026-09-21 —
portaltest-prod.ownerrez.com 10 2026-04-21 2026-09-22 ok
*.portaltest-prod.ownerrez.com 2 2026-04-21 2026-09-21 —
hostedorigintest-prod.ownerrez.com 1 2026-06-11 2026-06-11 ok
portalorigintest-prod.ownerrez.com 1 2026-06-11 2026-06-11 ok
hostedtest-e.ownerrez.com 7 2026-04-15 2026-09-28 ok
*.hostedtest-e.ownerrez.com 2 2026-04-15 2026-09-15 —
portaltest-e.ownerrez.com 8 2026-04-15 2026-09-27 ok
*.portaltest-e.ownerrez.com 2 2026-04-15 2026-09-15 —
hostedorigintest-e.ownerrez.com 3 2026-05-19 2026-05-19 ok
portalorigintest-e.ownerrez.com 3 2026-05-19 2026-05-19 ok
hostedstage.ownerrez.com 7 2026-02-26 2026-09-11 ok
*.hostedstage.ownerrez.com 2 2026-02-26 2026-07-14 —
portalstage.ownerrez.com 6 2025-11-23 2026-08-16 ok
*.portalstage.ownerrez.com 1 2025-11-23 2025-11-23 —
hostedoriginstage.ownerrez.com 3 2026-04-14 2026-09-14 ok
portaloriginstage.ownerrez.com 3 2026-04-14 2026-09-14 ok
hostedtest-f.ownerrez.com 8 2026-04-09 2026-09-09 ok
*.hostedtest-f.ownerrez.com 2 2026-04-09 2026-09-09 —
portaltest-f.ownerrez.com 7 2026-04-09 2026-09-29 ok
*.portaltest-f.ownerrez.com 2 2026-04-09 2026-09-09 —
hostedorigintest-f.ownerrez.com 1 2026-06-15 2026-06-15 ok
portalorigintest-f.ownerrez.com 1 2026-06-15 2026-06-15 ok
portal.ownerrez.com 1 2025-11-23 2025-11-23 ok
*.portal.ownerrez.com 1 2025-11-23 2025-11-23 —
app.joel.ownerrez.com 5 2026-06-02 2026-09-29 ok
fast.joel.ownerrez.com 5 2026-05-07 2026-09-03 ok
hostedorigin.ownerrez.com 3 2026-04-14 2026-09-14 ok
portalorigin.ownerrez.com 3 2026-04-14 2026-09-14 ok
fast.jason.ownerrez.com 3 2026-06-05 2026-08-06 ok
learn.ownerrez.com 14 2026-05-05 2026-09-08 ok
hosted.mayur.ownerrez.com 4 2026-05-05 2026-10-02 ok
secure.mayur.ownerrez.com 3 2026-05-05 2026-10-02 ok
booking.mayur.ownerrez.com 3 2026-05-05 2026-10-02 ok
api.mayur.ownerrez.com 4 2026-05-05 2026-10-02 ok
app.mayur.ownerrez.com 4 2026-05-05 2026-10-02 ok
fast.mayur.ownerrez.com 3 2026-05-05 2026-10-02 ok
www.mayur.ownerrez.com 4 2026-05-05 2026-10-02 ok
forms.ownerrez.com 10 2026-05-09 2026-09-06 ok
wordpress.ownerrez.com 5 2026-05-30 2026-09-29 ok
status.ownerrez.com 5 2026-04-25 2026-08-23 ok
*.aws.ownerrez.com 1 2026-01-09 2026-01-09 —
vpn-prod.aws.ownerrez.com 5 2026-05-31 2026-09-28 ok
vpn-stage.aws.ownerrez.com 6 2026-06-01 2026-09-30 ok
vpn-west.aws.ownerrez.com 3 2026-07-14 2026-09-13 ok

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