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.

21 hosts · 488 ms

HostCertsFirst seenLast seenDNS
nbcn.ca 4 2026-02-25 2026-08-24 ok
netrep2.nbcn.ca 2 2026-02-17 2026-03-31 ok
netrepPM.nbcn.ca 1 2026-02-19 2026-02-19 —
appa.nbcn.ca 6 2025-09-09 2026-08-25 ok
tisales-h65fcb.nbcn.ca 2 2026-02-17 2026-03-31 nxdomain
tisales.h65nbc.nbcn.ca 1 2026-01-13 2026-01-13 nxdomain
prod.nbcn.ca 3 2026-05-15 2026-08-24 ok
appa.pprod.nbcn.ca 10 2025-09-09 2026-08-25 ok
mig.nbcn.ca 3 2026-05-15 2026-08-24 nxdomain
assantecapital.nbcn.ca 2 2026-02-17 2026-03-31 ok
cticapital.nbcn.ca 1 2026-02-19 2026-02-19 ok
metrics-pp.nbcn.ca 10 2025-06-11 2026-08-24 ok
metrics.nbcn.ca 6 2025-06-11 2026-08-24 ok
trades.nbcn.ca 1 2025-12-18 2025-12-18 ok
uat.nbcn.ca 7 2025-09-10 2026-08-24 ok
filecabinet.nbcn.ca 2 2026-02-17 2026-03-31 ok
appa.test.nbcn.ca 10 2025-06-09 2026-08-24 ok
openadv.test.nbcn.ca 1 2025-09-10 2025-09-10 nxdomain
openadv.nbcn.ca 3 2026-05-15 2026-08-24 nxdomain
tisales.h65hsw.nbcn.ca 1 2025-12-18 2025-12-18 ok
www.nbcn.ca 4 2026-02-25 2026-08-24 ok

Programmatic access, with DNS A records: API GET /v1/hosts/nbcn.ca (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/nbcn.ca.