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 · 394 ms

HostCertsFirst seenLast seenDNS
clarity.io 10 2025-08-09 2026-09-13 ok
*.clarity.io 2 2025-08-09 2026-07-10 —
dust-ace.clarity.io 1 2026-04-16 2026-04-16 nxdomain
dd-api.clarity.io 1 2026-01-23 2026-01-23 ok
dd-ace-api.clarity.io 1 2026-04-16 2026-04-16 nxdomain
dd-dmo-api.clarity.io 2 2026-02-07 2026-02-07 ok
dd-dev-api.clarity.io 7 2026-01-23 2026-09-07 ok
click.clarity.io 12 2026-04-22 2026-08-20 ok
dust-dmo.clarity.io 1 2026-02-07 2026-02-07 ok
map.clarity.io 2 2025-07-17 2026-06-17 ok
*.map.clarity.io 2 2025-07-17 2026-06-17 —
auth.map.clarity.io 3 2026-04-19 2026-08-11 ok
auth-dev.map.clarity.io 3 2026-04-28 2026-08-22 ok
help.clarity.io 1 2026-06-26 2026-06-26 ok
investor.clarity.io 10 2026-04-27 2026-08-27 ok
stories.clarity.io 1 2026-06-24 2026-06-24 ok
proposals.clarity.io 5 2026-05-06 2026-09-10 ok
apps.clarity.io 4 2025-09-03 2026-08-04 ok
status.clarity.io 3 2026-07-30 2026-09-30 ok
support.clarity.io 6 2026-10-01 2026-10-01 ok
dust.clarity.io 1 2026-01-23 2026-01-23 ok
apps-dev.clarity.io 17 2025-07-31 2026-07-26 ok
dust-dev.clarity.io 2 2026-01-23 2026-01-23 ok
www.clarity.io 8 2026-04-30 2026-08-26 ok

Programmatic access, with DNS A records: API GET /v1/hosts/clarity.io (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/clarity.io.