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.

31 hosts · 290 ms

HostCertsFirst seenLast seenDNS
cradle.bio 21 2026-04-29 2026-08-26 ok
*.cradle.bio 31 2026-04-19 2026-09-22 —
static.cradle.bio 3 2026-05-16 2026-08-31 ok
auth.cradle.bio 10 2026-05-09 2026-09-04 ok
us.api.cradle.bio 18 2026-07-16 2026-09-22 ok
eu.api.cradle.bio 22 2026-07-16 2026-09-22 ok
signin.cradle.bio 10 2026-05-09 2026-09-04 ok
nn.cradle.bio 6 2026-04-15 2026-09-06 ok
*.nn.cradle.bio 18 2026-04-13 2026-10-02 —
auth.nn.cradle.bio 8 2026-04-29 2026-08-25 ok
api.nn.cradle.bio 10 2026-05-14 2026-07-13 ok
*.api.nn.cradle.bio 10 2026-07-23 2026-10-02 —
signin.nn.cradle.bio 10 2026-04-29 2026-08-25 ok
auth-setup.nn.cradle.bio 11 2026-04-29 2026-08-26 ok
go.cradle.bio 5 2026-05-05 2026-08-28 ok
hello.cradle.bio 12 2026-05-01 2026-08-28 ok
app.cradle.bio 5 2026-06-04 2026-09-06 ok
next-app.cradle.bio 2 2026-09-28 2026-09-30 ok
auth-setup.cradle.bio 9 2026-05-23 2026-09-19 ok
*.saas.cradle.bio 31 2026-04-19 2026-09-22 —
*.api.saas.cradle.bio 22 2026-07-16 2026-09-22 —
jobs.cradle.bio 5 2026-05-05 2026-08-28 ok
docs.cradle.bio 4 2026-08-05 2026-10-03 ok
*.saas-us.cradle.bio 26 2026-05-07 2026-09-22 —
*.api.saas-us.cradle.bio 18 2026-07-16 2026-09-22 —
status.cradle.bio 4 2026-04-09 2026-08-07 ok
trust.cradle.bio 8 2026-05-01 2026-08-28 ok
dev.cradle.bio 25 2026-06-04 2026-09-30 ok
*.saas-dev.cradle.bio 32 2026-05-06 2026-09-30 —
*.api.saas-dev.cradle.bio 16 2026-07-16 2026-09-30 —
www.cradle.bio 11 2026-04-23 2026-08-13 ok

Programmatic access, with DNS A records: API GET /v1/hosts/cradle.bio (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/cradle.bio.