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.

20 hosts · 212 ms

HostCertsFirst seenLast seen
fior.digital 19 2026-04-30 2026-09-18
*.fior.digital 16 2026-04-30 2026-09-18
core-services-test-staging.fior.digital 1 2026-03-03 2026-03-03
21bitcoin.fior.digital 2 2026-07-05 2026-08-26
api.core-services.fior.digital 2 2026-03-05 2026-08-05
backoffice.aws.fior.digital 7 2026-05-10 2026-07-31
*.backoffice.aws.fior.digital 7 2026-05-10 2026-07-31
aml-fraud.services-staging.aws.fior.digital 1 2025-12-12 2025-12-12
*.aml-fraud.services-staging.aws.fior.digital 1 2025-12-12 2025-12-12
api.services-staging.aws.fior.digital 2 2025-07-15 2026-06-15
*.api.services-staging.aws.fior.digital 2 2025-07-15 2026-06-15
document.services-staging.aws.fior.digital 2 2025-09-14 2026-08-15
*.document.services-staging.aws.fior.digital 2 2025-09-14 2026-08-15
aml-fraud.services.aws.fior.digital 1 2025-12-16 2025-12-16
*.aml-fraud.services.aws.fior.digital 1 2025-12-16 2025-12-16
api.services.aws.fior.digital 2 2025-07-16 2026-06-16
*.api.services.aws.fior.digital 2 2025-07-16 2026-06-16
document.services.aws.fior.digital 2 2025-09-20 2026-08-21
*.document.services.aws.fior.digital 2 2025-09-20 2026-08-21
www.fior.digital 3 2026-06-09 2026-09-06

Programmatic access: API GET /v1/hosts/fior.digital (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/fior.digital.