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 · 267 ms

HostCertsFirst seenLast seenDNS
alpaca.nri-secure.co.jp 2 2026-06-11 2026-07-02 nodata
*.alpaca.nri-secure.co.jp 3 2026-06-11 2026-10-05 —
assessa.alpaca.nri-secure.co.jp 1 2026-06-29 2026-06-29 ok
spin.alpaca.nri-secure.co.jp 4 2026-08-26 2026-08-26 ok
resourcemap-api-dev.alpaca.nri-secure.co.jp 2 2026-08-28 2026-08-28 ok
resourcemap-dev.alpaca.nri-secure.co.jp 2 2026-08-23 2026-08-23 ok
langfuse.001.llmgw.alpaca.nri-secure.co.jp 2 2026-06-29 2026-06-30 ok
litellm.001.llmgw.alpaca.nri-secure.co.jp 2 2026-06-29 2026-06-30 ok
litellm.001.api.llmgw.alpaca.nri-secure.co.jp 2 2026-06-29 2026-06-30 nxdomain
traffic.nri-secure.co.jp 3 2025-09-16 2026-09-14 ok
confluence.nri-secure.co.jp 1 2026-02-16 2026-02-16 ok
*.confluence.nri-secure.co.jp 1 2026-02-16 2026-02-16 —
secure-scope.nri-secure.co.jp 5 2026-04-27 2026-09-27 ok
*.secure-scope.nri-secure.co.jp 6 2026-04-27 2026-09-27 —
o2.remote.nri-secure.co.jp 3 2026-05-25 2026-08-27 ok
y2.remote.nri-secure.co.jp 1 2026-06-19 2026-06-19 ok
video.nri-secure.co.jp 5 2026-05-16 2026-09-18 ok
www.nri-secure.co.jp 10 2026-04-23 2026-08-19 ok

Programmatic access, with DNS A records: API GET /v1/hosts/nri-secure.co.jp (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/nri-secure.co.jp.