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.

11 hosts · 286 ms

HostCertsFirst seenLast seenDNS
swift.com.br 9 2025-08-26 2026-10-03 ok
*.swift.com.br 5 2025-08-26 2026-09-11 —
loja.swift.com.br 3 2026-05-29 2026-08-12 ok
link.qa.swift.com.br 4 2026-04-19 2026-08-16 ok
respeitoaoplaneta.swift.com.br 4 2026-06-06 2026-08-22 ok
assistente.swift.com.br 3 2025-10-31 2026-10-01 ok
teste.swift.com.br 2 2026-07-05 2026-07-05 ok
link.mail.swift.com.br 4 2026-04-12 2026-08-09 ok
autodiscover.swift.com.br 1 2026-06-03 2026-06-03 ok
link.mkt.swift.com.br 4 2026-04-10 2026-08-08 ok
www.swift.com.br 1 2026-02-16 2026-02-16 ok

Programmatic access, with DNS A records: API GET /v1/hosts/swift.com.br (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/swift.com.br.