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.

11 hosts · 226 ms

HostCertsFirst seenLast seen
kop-kande.dk 19 2026-04-15 2026-10-09
*.kop-kande.dk 19 2026-04-15 2026-10-09
kundeservice.kop-kande.dk 4 2026-06-12 2026-10-10
umbraco-netcore.kop-kande.dk 8 2026-05-15 2026-09-10
katalog.kop-kande.dk 52 2026-04-20 2026-08-14
link.kop-kande.dk 3 2026-05-27 2026-08-04
ssgtm.kop-kande.dk 3 2026-05-02 2026-08-20
on.kop-kande.dk 5 2026-05-24 2026-09-21
webshop.kop-kande.dk 3 2026-05-31 2026-08-09
mit.kop-kande.dk 4 2026-04-21 2026-09-08
nav.kop-kande.dk 3 2025-09-03 2026-09-15

Programmatic access: API GET /v1/hosts/kop-kande.dk (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/kop-kande.dk.