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.

14 hosts · 324 ms

HostCertsFirst seenLast seenDNS
tropitop.com 15 2026-04-22 2026-09-17 ok
*.tropitop.com 9 2026-04-22 2026-09-17 —
horeca.tropitop.com 4 2026-04-13 2026-08-17 ok
devhoreca.tropitop.com 4 2026-04-11 2026-08-09 ok
apadrina.tropitop.com 1 2026-09-01 2026-09-01 ok
pre.tropitop.com 5 2026-04-27 2026-08-31 ok
ftp.pre.tropitop.com 5 2026-05-18 2026-09-21 ok
signature.tropitop.com 4 2026-04-13 2026-08-17 ok
landing.tropitop.com 4 2026-04-15 2026-08-13 ok
trk.tropitop.com 5 2026-05-05 2026-09-08 ok
ftp.pro.tropitop.com 5 2026-05-18 2026-09-21 ok
partner.tropitop.com 5 2026-05-11 2026-09-05 ok
dev.tropitop.com 6 2026-05-07 2026-09-08 ok
www.tropitop.com 7 2026-05-02 2026-09-07 ok

Programmatic access, with DNS A records: API GET /v1/hosts/tropitop.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/tropitop.com.