Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

17 hosts · 211 ms

HostCertsFirst seenLast seen
spreeai.com 13 2026-01-07 2026-09-01
*.spreeai.com 8 2026-01-07 2026-07-29
upload.spreeai.com 2 2026-03-02 2026-07-18
shared.spreeai.com 6 2025-06-23 2026-06-13
*.shared.spreeai.com 6 2025-06-23 2026-06-13
prod.spreeai.com 7 2025-09-07 2026-10-02
*.prod.spreeai.com 7 2025-09-07 2026-10-02
salesforce.spreeai.com 10 2026-05-07 2026-09-02
stage.spreeai.com 4 2026-03-03 2026-10-02
*.stage.spreeai.com 5 2026-02-17 2026-10-02
training.spreeai.com 3 2025-09-18 2026-08-19
*.training.spreeai.com 3 2025-09-18 2026-08-19
sso.spreeai.com 10 2026-05-02 2026-10-04
schemas.spreeai.com 4 2025-07-03 2026-06-14
dev.spreeai.com 4 2026-03-02 2026-08-02
*.dev.spreeai.com 5 2026-02-18 2026-08-02
www.spreeai.com 5 2026-05-04 2026-09-01

Programmatic access: API GET /v1/hosts/spreeai.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/spreeai.com.