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 · 215 ms

HostCertsFirst seenLast seenDNS
paypal-experience.com 4 2025-10-01 2026-09-24 nodata
feedback.paypal-experience.com 1 2025-10-09 2025-10-09 nxdomain
www.paypal-experience.com 1 2025-10-01 2025-10-01 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/paypal-experience.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/paypal-experience.com.