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.

3 hosts · 241 ms

HostCertsFirst seenLast seenDNS
paypal.de 3 2026-05-11 2026-09-24 ok
safetyhub.paypal.de 4 2025-09-16 2026-07-07 ok
www.paypal.de 1 2026-02-12 2026-02-12 ok

Programmatic access, with DNS A records: API GET /v1/hosts/paypal.de (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/paypal.de.