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.

29 hosts · 378 ms

HostCertsFirst seenLast seenDNS
ncm20.com 59 2025-06-24 2026-10-05 ok
*.ncm20.com 37 2025-06-24 2026-09-14 —
kcpve01.ncm20.com 1 2026-04-13 2026-04-13 nxdomain
lezbxp01.ncm20.com 4 2026-06-02 2026-06-02 nxdomain
levcenter01.ncm20.com 1 2026-05-04 2026-05-04 nxdomain
kcpve02.ncm20.com 1 2026-04-13 2026-04-13 nxdomain
bi-db.ncm20.com 2 2026-08-13 2026-08-13 ok
dsc.ncm20.com 16 2026-05-20 2026-09-15 ok
secure.ncm20.com 22 2026-05-19 2026-09-14 ok
inf.ncm20.com 6 2026-05-28 2026-08-24 nodata
*.inf.ncm20.com 6 2026-05-28 2026-08-24 —
letsdbp01.inf.ncm20.com 2 2026-06-02 2026-06-02 nxdomain
lelogsp01.inf.ncm20.com 2 2026-06-02 2026-06-02 nxdomain
lezbxp01.inf.ncm20.com 2 2026-06-02 2026-06-02 nxdomain
openfaas.inf.ncm20.com 4 2026-05-26 2026-07-25 nxdomain
zabbix.inf.ncm20.com 4 2026-06-02 2026-06-02 nxdomain
blog.ncm20.com 16 2026-05-18 2026-09-14 ok
info.ncm20.com 18 2026-05-20 2026-09-15 ok
go.ncm20.com 20 2026-05-20 2026-10-05 ok
*.go.ncm20.com 4 2026-08-07 2026-10-05 —
demo.ncm20.com 4 2026-08-12 2026-08-12 ok
*.demo.ncm20.com 2 2026-08-12 2026-08-12 —
bi-mcp.ncm20.com 4 2026-08-13 2026-08-13 ok
*.bi-mcp.ncm20.com 2 2026-08-13 2026-08-13 —
ncmperspectives.ncm20.com 20 2026-05-19 2026-09-15 ok
dev.ncm20.com 1 2026-09-29 2026-09-29 nodata
*.dev.ncm20.com 1 2026-09-29 2026-09-29 —
mail.listserv.ncm20.com 3 2026-06-18 2026-09-04 ok
www.ncm20.com 14 2026-05-18 2026-09-13 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ncm20.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/ncm20.com.