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.

22 hosts · 372 ms

HostCertsFirst seenLast seenDNS
paypal.cn 1 2026-04-29 2026-04-29 ok
mx1.paypal.cn 2 2025-06-23 2026-06-22 ok
api.e2e2.paypal.cn 1 2026-05-21 2026-05-21 ok
www.e2e2.paypal.cn 1 2026-05-21 2026-05-21 ok
api.e2e.paypal.cn 1 2026-05-21 2026-05-21 ok
www.e2e.paypal.cn 1 2026-05-21 2026-05-21 ok
staging.paypal.cn 8 2025-08-13 2026-05-21 ok
api.staging.paypal.cn 1 2026-05-21 2026-05-21 ok
www.staging.paypal.cn 1 2026-05-21 2026-05-21 ok
api.paypal.cn 1 2026-04-29 2026-04-29 ok
open.paypal.cn 1 2026-04-29 2026-04-29 ok
api.integration.paypal.cn 1 2026-05-21 2026-05-21 ok
www.integration.paypal.cn 1 2026-05-21 2026-05-21 ok
api.pre-production.paypal.cn 1 2026-05-21 2026-05-21 ok
www.pre-production.paypal.cn 1 2026-05-21 2026-05-21 ok
api.post-production.paypal.cn 1 2026-05-21 2026-05-21 ok
www.post-production.paypal.cn 1 2026-05-21 2026-05-21 ok
services.paypal.cn 1 2026-04-29 2026-04-29 ok
objects.paypal.cn 3 2025-09-29 2026-09-04 ok
t.paypal.cn 1 2026-04-29 2026-04-29 ok
cpstest.paypal.cn 1 2025-12-17 2025-12-17 nxdomain
www.paypal.cn 1 2026-04-29 2026-04-29 ok

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