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.

82 hosts · 261 ms

HostCertsFirst seenLast seen
ownid.com 4 2025-10-20 2026-09-20
*.ownid.com 8 2025-07-11 2026-09-20
nivcname5.ownid.com 3 2026-04-23 2026-09-23
demo1.qa.ownid.com 2 2026-02-19 2026-07-07
demo2.qa.ownid.com 1 2026-02-18 2026-02-18
demo3.qa.ownid.com 2 2026-02-19 2026-07-07
demo4.qa.ownid.com 1 2026-02-18 2026-02-18
demo5.qa.ownid.com 1 2026-02-18 2026-02-18
demo6.qa.ownid.com 2 2026-02-21 2026-07-09
*.prod-b.ownid.com 2 2025-07-11 2026-06-10
*.server.prod-b.ownid.com 2 2025-07-11 2026-06-10
s.c.ownid.com 2 2026-03-27 2026-08-27
playground.ownid.com 2 2025-09-20 2025-11-30
i18n.prod.ownid.com 2 2026-03-05 2026-07-21
cdn.prod.ownid.com 1 2026-01-08 2026-01-08
profile.ownid.com 2 2025-10-01 2026-09-01
console.ownid.com 1 2026-02-15 2026-02-15
passwordless.console.ownid.com 2 2026-03-18 2026-08-18
nivtestcname.ownid.com 2 2026-03-12 2026-07-28
gigya.username.ownid.com 2 2025-10-08 2026-09-08
staging.ownid.com 2 2025-10-08 2026-09-08
*.staging.ownid.com 2 2025-10-08 2026-09-08
webflow-ownid.staging.ownid.com 1 2026-01-24 2026-01-24
console.staging.ownid.com 1 2026-02-13 2026-02-13
api.staging.ownid.com 1 2025-11-28 2025-11-28
i18n.staging.ownid.com 2 2026-03-10 2026-07-26
cdn.staging.ownid.com 1 2026-02-13 2026-02-13
demo.staging.ownid.com 2 2025-10-12 2026-09-12
*.custom.demo.staging.ownid.com 2 2025-10-23 2026-09-23
app.staging.ownid.com 1 2026-02-13 2026-02-13
*.server.staging.ownid.com 4 2025-09-02 2026-08-03
cdn.marketing.ownid.com 2 2025-06-22 2026-05-23
blog.ownid.com 1 2026-02-12 2026-02-12
api.ownid.com 1 2025-11-28 2025-11-28
trk.ownid.com 1 2026-10-13 2026-10-13
m.ownid.com 2 2025-06-30 2026-05-31
*.csm-crm.ownid.com 2 2026-07-27 2026-07-27
i18n.ownid.com 1 2025-12-14 2025-12-14
cdn.ownid.com 1 2026-01-08 2026-01-08
login.ownid.com 1 2025-12-09 2025-12-09
fido.ownid.com 4 2026-03-27 2026-08-27
demo.ownid.com 1 2025-11-30 2025-11-30
login.demo.ownid.com 2 2025-09-20 2026-08-21
passwordless.demo.ownid.com 1 2026-02-15 2026-02-15
wordpress.demo.ownid.com 5 2026-04-27 2026-08-23
www.wordpress.demo.ownid.com 5 2026-04-27 2026-08-23
p.ownid.com 2 2025-09-15 2026-08-16
temp.ownid.com 3 2026-03-30 2026-08-30
app.ownid.com 1 2026-02-15 2026-02-15
*.server.ownid.com 3 2025-07-11 2026-06-10
docs.ownid.com 5 2026-05-17 2026-09-18
vis.ownid.com 2 2026-03-14 2026-08-14
uat.ownid.com 2 2025-10-05 2026-09-05
*.uat.ownid.com 2 2025-10-08 2026-09-08
h1.uat.ownid.com 2 2025-10-12 2026-09-12
passwordless.h1.uat.ownid.com 2 2025-10-12 2026-09-12
console.uat.ownid.com 2 2026-02-26 2026-07-14
api.uat.ownid.com 1 2025-11-28 2025-11-28
i18n.uat.ownid.com 2 2026-03-10 2026-07-26
cdn.uat.ownid.com 2 2026-02-26 2026-07-14
demo.uat.ownid.com 2 2026-02-26 2026-07-14
passwordless.demo.uat.ownid.com 2 2026-02-26 2026-07-14
app.uat.ownid.com 2 2026-02-26 2026-07-14
*.server.uat.ownid.com 2 2026-03-08 2026-07-24
passkeystest.ownid.com 2 2026-05-03 2026-10-03
dev.ownid.com 2 2025-09-29 2026-08-30
*.dev.ownid.com 2 2025-10-08 2026-09-08
s.c.dev.ownid.com 2 2026-03-27 2026-08-27
danny-firebase-integ-exrc.dev.ownid.com 2 2025-09-26 2026-08-27
console.dev.ownid.com 1 2026-02-13 2026-02-13
cdn.marketing.dev.ownid.com 2 2025-06-22 2026-05-23
api.dev.ownid.com 1 2025-11-28 2025-11-28
i18n.dev.ownid.com 1 2025-12-15 2025-12-15
cdn.dev.ownid.com 1 2026-02-13 2026-02-13
demo.dev.ownid.com 2 2025-10-12 2026-09-12
*.custom.demo.dev.ownid.com 2 2025-10-23 2026-09-23
passwordless.demo.dev.ownid.com 4 2025-10-20 2026-09-20
app.dev.ownid.com 1 2026-02-13 2026-02-13
*.server.dev.ownid.com 4 2026-02-15 2026-09-13
docs.dev.ownid.com 1 2026-02-13 2026-02-13
passwordless.dev.ownid.com 4 2025-09-07 2026-08-21
www.ownid.com 5 2026-05-21 2026-09-24

Programmatic access: API GET /v1/hosts/ownid.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/ownid.com.