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.

16 hosts · 242 ms

HostCertsFirst seenLast seenDNS
baited.io 23 2026-04-28 2026-08-25 ok
*.baited.io 20 2026-04-28 2026-08-24 —
api-dev-v2.baited.io 1 2026-04-10 2026-04-10 nxdomain
app-dev-v2.baited.io 1 2026-04-10 2026-04-10 nxdomain
api-staging.baited.io 5 2026-05-04 2026-09-01 ok
app-staging.baited.io 4 2026-05-04 2026-08-31 ok
edu-staging.baited.io 3 2026-08-25 2026-08-25 ok
*.edu-staging.baited.io 5 2026-08-24 2026-08-25 —
monitoring.baited.io 5 2026-05-17 2026-09-14 nxdomain
bimi.baited.io 12 2026-04-25 2026-08-22 ok
api.baited.io 5 2026-05-17 2026-09-14 ok
app.baited.io 4 2026-05-17 2026-09-14 ok
edu.baited.io 4 2026-04-30 2026-09-08 ok
*.edu.baited.io 1 2026-07-15 2026-07-15 —
api-dev.baited.io 4 2026-04-17 2026-08-15 ok
app-dev.baited.io 4 2026-04-17 2026-08-15 ok

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