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 · 294 ms

HostCertsFirst seenLast seenDNS
prodigypromos.com 3 2026-04-22 2026-08-24 ok
selfservice.prodigypromos.com 9 2026-05-04 2026-10-01 ok
search.prodigypromos.com 7 2026-04-29 2026-09-26 ok
coresearch.prodigypromos.com 5 2026-05-14 2026-08-12 ok
track.prodigypromos.com 14 2026-05-27 2026-09-22 ok
desk.prodigypromos.com 12 2026-05-05 2026-09-04 ok
team.prodigypromos.com 7 2026-06-20 2026-09-28 ok
learn.prodigypromos.com 12 2026-05-11 2026-09-08 ok
help.prodigypromos.com 6 2026-06-12 2026-09-20 ok
shop.prodigypromos.com 9 2026-05-04 2026-10-01 ok
docs.prodigypromos.com 5 2026-05-05 2026-09-02 ok
clicks.prodigypromos.com 12 2026-04-26 2026-09-15 ok
books.prodigypromos.com 63 2026-07-08 2026-10-04 ok
forms.prodigypromos.com 12 2026-05-07 2026-09-05 ok
connect.prodigypromos.com 5 2026-05-06 2026-09-03 ok
www.prodigypromos.com 4 2026-04-22 2026-08-24 ok

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