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.

12 hosts · 251 ms

HostCertsFirst seenLast seen
eredivisie.nl 5 2026-04-30 2026-08-31
top1000.eredivisie.nl 1 2026-09-01 2026-09-01
service.eredivisie.nl 5 2026-05-07 2026-09-05
esf.eredivisie.nl 5 2026-04-30 2026-08-31
staging.eredivisie.nl 8 2026-04-30 2026-09-30
login.staging.eredivisie.nl 2 2026-02-28 2026-07-10
api.eredivisie.nl 5 2026-04-30 2026-08-31
mail.eredivisie.nl 5 2026-05-12 2026-09-10
login.eredivisie.nl 2 2026-03-01 2026-07-10
sso.eredivisie.nl 5 2026-05-07 2026-09-05
acties.eredivisie.nl 5 2026-05-27 2026-09-24
www.eredivisie.nl 5 2026-04-30 2026-08-31

Programmatic access: API GET /v1/hosts/eredivisie.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/eredivisie.nl.