Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

10 hosts · 273 ms

HostCertsFirst seenLast seen
pcloud.com 1 2026-02-11 2026-02-11
*.pcloud.com 1 2026-02-11 2026-02-11
edocsqa1.pcloud.com 5 2026-05-01 2026-08-29
en1docsrvqa1.pcloud.com 5 2026-05-08 2026-09-04
page.pcloud.com 5 2026-05-01 2026-08-29
blog.pcloud.com 5 2026-04-29 2026-08-27
transfer.pcloud.com 1 2026-01-19 2026-01-19
www.transfer.pcloud.com 1 2026-01-19 2026-01-19
edocs.pcloud.com 5 2026-05-01 2026-08-29
en1docsrv.pcloud.com 10 2026-05-02 2026-09-01

Programmatic access: API GET /v1/hosts/pcloud.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/pcloud.com.