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.

16 hosts · 347 ms

HostCertsFirst seenLast seenDNS
ai-suite.com 2 2025-11-30 2026-01-15 ok
console.ai-suite.com 1 2025-11-02 2025-11-02 servfail
stg.ai-suite.com 13 2025-10-30 2026-09-16 ok
roleplay-api.ai-suite.com 1 2026-01-15 2026-01-15 ok
stg.roleplay-api.ai-suite.com 4 2025-08-01 2026-09-30 ok
reh.roleplay-api.ai-suite.com 1 2026-02-04 2026-02-04 ok
tran.roleplay-api.ai-suite.com 2 2026-09-30 2026-09-30 nodata
dev.roleplay-api.ai-suite.com 3 2025-10-30 2026-09-30 ok
v2.dev.roleplay-api.ai-suite.com 3 2025-09-10 2026-09-30 ok
ds.dev.roleplay-api.ai-suite.com 3 2025-10-30 2026-09-30 ok
dev.ai-suite.com 2 2025-10-16 2025-10-30 ok
roleplay.ai-suite.com 2 2025-06-23 2026-01-15 ok
stg.roleplay.ai-suite.com 4 2025-06-23 2026-09-30 ok
reh.roleplay.ai-suite.com 1 2026-02-04 2026-02-04 ok
tran.roleplay.ai-suite.com 1 2026-09-30 2026-09-30 nodata
dev.roleplay.ai-suite.com 4 2025-06-23 2026-09-30 ok

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