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.

30 hosts · 542 ms

HostCertsFirst seenLast seenDNS
ai-build.com 10 2026-06-23 2026-10-07 ok
*.ai-build.com 1 2025-12-20 2025-12-20 —
www.aisync-tmp-prod.ai-build.com 4 2026-06-07 2026-10-07 ok
store.ai-build.com 6 2026-06-01 2026-10-01 ok
www.store.ai-build.com 6 2026-06-01 2026-10-01 ok
autoconfig.ai-build.com 1 2026-08-08 2026-08-08 ok
aisync-api.ai-build.com 1 2025-12-23 2025-12-23 ok
www.aisync-api.ai-build.com 6 2025-12-23 2026-08-27 ok
os-api.ai-build.com 1 2026-02-12 2026-02-12 ok
webdisk.ai-build.com 5 2026-05-17 2026-08-08 ok
rapidmouldsuk.ai-build.com 6 2026-04-26 2026-10-06 ok
www.rapidmouldsuk.ai-build.com 6 2026-04-26 2026-10-06 ok
cpanel.ai-build.com 5 2026-05-17 2026-08-08 ok
mail.ai-build.com 5 2026-05-17 2026-08-08 ok
webmail.ai-build.com 5 2026-05-17 2026-08-08 ok
3dp.ai-build.com 6 2026-06-01 2026-10-01 ok
www.3dp.ai-build.com 6 2026-06-01 2026-10-01 ok
autodiscover.ai-build.com 5 2026-05-17 2026-08-08 ok
docs.ai-build.com 4 2026-04-15 2026-08-15 ok
www.docs.ai-build.com 4 2026-04-15 2026-08-15 ok
rapidmoulds.ai-build.com 6 2026-04-26 2026-10-07 ok
www.rapidmoulds.ai-build.com 6 2026-04-26 2026-10-07 ok
fe-events.ai-build.com 2 2025-07-22 2026-06-22 ok
mta-sts.ai-build.com 5 2026-05-30 2026-09-29 ok
aiport.ai-build.com 6 2026-06-01 2026-10-01 ok
www.aiport.ai-build.com 6 2026-06-01 2026-10-01 ok
aisync-api-test.ai-build.com 1 2026-02-16 2026-02-16 ok
www.aisync-api-test.ai-build.com 6 2026-02-16 2026-10-03 ok
os-api-test.ai-build.com 1 2026-02-12 2026-02-12 ok
www.ai-build.com 10 2026-06-23 2026-10-07 ok

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