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.

18 hosts · 233 ms

HostCertsFirst seenLast seenDNS
binalyze.com 27 2026-04-17 2026-09-18 ok
*.binalyze.com 15 2026-05-23 2026-09-18 —
kb.binalyze.com 10 2026-04-24 2026-08-21 ok
marketing.binalyze.com 8 2026-07-22 2026-09-19 ok
sebi.binalyze.com 16 2026-04-14 2026-08-11 ok
roi.binalyze.com 14 2026-04-27 2026-08-23 ok
enterprise-roi.binalyze.com 18 2026-04-27 2026-08-23 ok
mssp-roi.binalyze.com 14 2026-04-27 2026-08-24 ok
responder.cdn.binalyze.com 8 2026-04-15 2026-08-11 ok
images.cdn.binalyze.com 9 2026-05-27 2026-09-22 ok
mssp.binalyze.com 12 2026-05-02 2026-08-28 ok
docs.binalyze.com 6 2026-06-02 2026-09-30 ok
sales.binalyze.com 6 2026-07-22 2026-09-19 ok
partners.binalyze.com 9 2026-04-20 2026-08-13 ok
contracts.binalyze.com 6 2026-05-20 2026-09-16 ok
support.binalyze.com 5 2026-05-26 2026-09-23 ok
trust.binalyze.com 8 2026-05-17 2026-07-21 ok
www.binalyze.com 8 2026-04-17 2026-09-12 ok

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