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.

17 hosts · 233 ms

HostCertsFirst seenLast seen
variomedia.de 13 2025-09-15 2026-09-23
*.variomedia.de 6 2026-03-31 2026-08-25
vertrag.variomedia.de 5 2026-05-26 2026-09-23
blog.variomedia.de 4 2026-04-20 2026-08-18
www.blog.variomedia.de 4 2026-04-20 2026-08-18
blog-ai.variomedia.de 4 2026-04-17 2026-08-24
www.blog-ai.variomedia.de 4 2026-04-17 2026-08-24
ox8-ui.variomedia.de 4 2026-05-23 2026-07-22
faq.variomedia.de 5 2026-05-26 2026-09-23
ntlds.variomedia.de 4 2026-04-20 2026-08-18
www.ntlds.variomedia.de 4 2026-04-20 2026-08-18
domains.variomedia.de 5 2026-05-26 2026-09-23
stats.variomedia.de 5 2026-05-26 2026-09-23
netzhaus.variomedia.de 5 2026-05-26 2026-09-23
checkout.variomedia.de 5 2026-05-26 2026-09-23
new.variomedia.de 5 2026-05-26 2026-09-23
www.variomedia.de 2 2025-09-15 2026-09-01

Programmatic access: API GET /v1/hosts/variomedia.de (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/variomedia.de.