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.

9 hosts · 232 ms

HostCertsFirst seenLast seen
vpnnederland.nl 37 2026-04-14 2026-10-04
*.vpnnederland.nl 16 2026-04-14 2026-08-11
ssa.vpnnederland.nl 5 2026-05-29 2026-09-26
update.vpnnederland.nl 12 2026-05-20 2026-09-15
email.mg.vpnnederland.nl 4 2026-06-10 2026-10-08
wp-widget-dataleak.vpnnederland.nl 9 2026-05-02 2026-08-28
static-app.vpnnederland.nl 8 2026-05-12 2026-09-07
partner.vpnnederland.nl 5 2026-06-10 2026-09-05
review.vpnnederland.nl 12 2026-06-08 2026-10-04

Programmatic access: API GET /v1/hosts/vpnnederland.nl (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/vpnnederland.nl.