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.

8 hosts · 357 ms

HostCertsFirst seenLast seen
kaufland-marketplace.com 5 2026-04-17 2026-09-28
email.kaufland-marketplace.com 5 2026-05-30 2026-09-27
email.reports.kaufland-marketplace.com 4 2026-04-12 2026-08-10
mta-sts.reports.kaufland-marketplace.com 5 2026-05-26 2026-09-21
mta-sts.kaufland-marketplace.com 5 2026-05-24 2026-09-19
email.sit.kaufland-marketplace.com 5 2026-04-22 2026-08-20
mta-sts.sit.kaufland-marketplace.com 5 2026-05-26 2026-09-21
www.kaufland-marketplace.com 5 2026-04-22 2026-10-04

Programmatic access: API GET /v1/hosts/kaufland-marketplace.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/kaufland-marketplace.com.