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.

13 hosts · 329 ms

HostCertsFirst seenLast seenDNS
ai.aixdesign-ocn.com 1 2026-01-20 2026-01-20 ok
integ.pro.ai.aixdesign-ocn.com 2 2025-09-19 2026-01-20 ok
integ.dev.ai.aixdesign-ocn.com 2 2025-08-04 2026-01-20 ok
api.aixdesign-ocn.com 1 2026-01-20 2026-01-20 ok
dev.api.aixdesign-ocn.com 1 2026-01-20 2026-01-20 ok
integ.operation.aixdesign-ocn.com 3 2025-09-16 2026-01-20 ok
integ.dev.operation.aixdesign-ocn.com 3 2025-08-15 2026-01-20 ok
shop.aixdesign-ocn.com 2 2025-10-03 2026-01-19 nodata
api.shop.aixdesign-ocn.com 2 2025-10-03 2026-01-19 nodata
dev.api.shop.aixdesign-ocn.com 2 2025-10-03 2026-01-19 nodata
operation.shop.aixdesign-ocn.com 2 2025-10-01 2026-01-19 ok
dev.operation.shop.aixdesign-ocn.com 1 2025-10-01 2025-10-01 nxdomain
dev.shop.aixdesign-ocn.com 2 2025-10-03 2026-01-19 nodata

Programmatic access, with DNS A records: API GET /v1/hosts/aixdesign-ocn.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/aixdesign-ocn.com.