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.

26 hosts · 322 ms

HostCertsFirst seenLast seenDNS
bimicertifications.com 13 2026-05-04 2026-10-02 ok
*.bimicertifications.com 7 2026-05-10 2026-10-02 —
ca.bimicertifications.com 6 2026-05-05 2026-08-31 ok
ua.bimicertifications.com 6 2026-05-03 2026-08-29 ok
id.bimicertifications.com 10 2026-05-04 2026-08-30 ok
ee.bimicertifications.com 8 2026-05-03 2026-08-30 ok
knowledge.bimicertifications.com 6 2026-05-04 2026-08-30 ok
bg.bimicertifications.com 6 2026-05-03 2026-08-29 ok
check.bimicertifications.com 4 2026-04-17 2026-08-15 ok
cn.bimicertifications.com 8 2026-05-03 2026-08-30 ok
ko.bimicertifications.com 10 2026-05-04 2026-08-30 ok
no.bimicertifications.com 12 2026-05-04 2026-08-30 ok
jp.bimicertifications.com 10 2026-05-04 2026-08-30 ok
ar.bimicertifications.com 8 2026-05-05 2026-08-31 ok
br.bimicertifications.com 8 2026-05-04 2026-08-30 ok
kr.bimicertifications.com 14 2026-04-19 2026-08-16 ok
mta-sts.bimicertifications.com 2 2026-05-22 2026-08-01 ok
it.bimicertifications.com 8 2026-05-02 2026-08-28 ok
lt.bimicertifications.com 8 2026-05-08 2026-09-03 ok
support.bimicertifications.com 10 2026-05-05 2026-09-01 ok
podcast.bimicertifications.com 10 2026-05-05 2026-08-31 ok
inst.bimicertifications.com 5 2026-05-11 2026-09-12 ok
ru.bimicertifications.com 8 2026-05-03 2026-08-29 ok
lv.bimicertifications.com 10 2026-05-03 2026-08-29 ok
www.bimicertifications.com 10 2026-05-05 2026-08-31 ok
mx.bimicertifications.com 8 2026-05-05 2026-08-31 ok

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