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.

30 hosts · 248 ms

HostCertsFirst seenLast seenDNS
clarius.com 22 2026-04-23 2026-08-20 ok
*.clarius.com 19 2026-04-23 2026-08-20 —
url4680.clarius.com 2 2026-09-09 2026-09-09 ok
ca.clarius.com 15 2026-05-17 2026-09-28 ok
cloud.clarius.com 5 2025-06-16 2026-09-20 ok
*.cloud.clarius.com 6 2025-06-16 2026-09-20 —
stage.clarius.com 5 2026-04-08 2026-09-20 ok
*.stage.clarius.com 5 2026-04-08 2026-09-20 —
store.clarius.com 11 2026-05-17 2026-09-25 ok
hi.clarius.com 6 2026-05-07 2026-09-02 ok
uk.clarius.com 17 2026-05-17 2026-09-25 ok
l.clarius.com 8 2026-05-04 2026-08-31 ok
classroom.clarius.com 4 2026-04-09 2026-08-23 ok
sgtm.clarius.com 5 2026-04-15 2026-09-23 ok
go.clarius.com 6 2026-05-06 2026-09-01 ok
membership.clarius.com 5 2026-04-26 2026-08-25 ok
lp.clarius.com 2 2026-10-02 2026-10-02 ok
metrics.clarius.com 2 2025-09-29 2026-08-30 ok
partners.clarius.com 5 2026-06-04 2026-10-02 ok
cloud-email-assets.clarius.com 1 2026-09-09 2026-09-09 nxdomain
cloud-clarius-email-assets.clarius.com 3 2026-09-09 2026-09-09 ok
status.clarius.com 5 2026-04-24 2026-08-24 ok
support.clarius.com 11 2026-04-19 2026-09-17 ok
test.clarius.com 5 2025-06-16 2026-09-20 ok
support-test.clarius.com 10 2026-06-08 2026-09-07 ok
*.test.clarius.com 5 2025-06-16 2026-09-20 —
dist.clarius.com 18 2026-05-20 2026-09-29 ok
au.clarius.com 15 2026-04-13 2026-09-25 ok
eu.clarius.com 15 2026-05-17 2026-09-27 ok
www.clarius.com 4 2026-04-09 2026-08-08 ok

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