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.

23 hosts · 293 ms

HostCertsFirst seenLast seenDNS
intellectability.com 23 2026-05-05 2026-09-23 ok
*.intellectability.com 20 2026-05-05 2026-09-23 —
gadd.intellectability.com 3 2026-06-18 2026-08-18 ok
scdd.intellectability.com 5 2026-05-08 2026-09-07 ok
mddd.intellectability.com 5 2026-05-08 2026-09-07 ok
store.intellectability.com 4 2026-09-01 2026-09-29 ok
blog.intellectability.com 2 2026-09-01 2026-09-01 ok
msdmh.intellectability.com 7 2026-04-15 2026-09-07 ok
info.intellectability.com 2 2026-09-01 2026-09-01 ok
nhbds.intellectability.com 3 2026-08-03 2026-10-03 ok
hidhs.intellectability.com 6 2026-04-07 2026-09-29 ok
mail.hidhs.intellectability.com 3 2026-04-07 2026-05-03 nxdomain
www.hidhs.intellectability.com 3 2026-04-07 2026-05-03 nxdomain
lms.intellectability.com 5 2026-05-08 2026-09-07 ok
qalms.intellectability.com 3 2026-06-12 2026-08-12 ok
mikelms.intellectability.com 3 2026-06-12 2026-08-12 ok
backlms.intellectability.com 5 2026-05-12 2026-09-11 ok
press.intellectability.com 2 2026-09-01 2026-09-01 ok
lmstest.intellectability.com 5 2026-05-04 2026-09-29 ok
mail.lmstest.intellectability.com 2 2026-05-04 2026-05-04 nxdomain
www.lmstest.intellectability.com 2 2026-05-04 2026-05-04 nxdomain
lmsdev.intellectability.com 3 2026-06-13 2026-08-13 ok
www.intellectability.com 2 2026-08-31 2026-08-31 ok

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