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.

13 hosts · 204 ms

HostCertsFirst seenLast seen
backmarket.nl 33 2026-05-10 2026-10-06
*.backmarket.nl 33 2026-05-10 2026-10-06
preprod.backmarket.nl 11 2026-05-20 2026-09-15
*.preprod.backmarket.nl 11 2026-05-20 2026-09-15
clicks.pro-e.backmarket.nl 6 2026-05-11 2026-09-06
dse.backmarket.nl 10 2026-04-19 2026-08-15
*.dse.backmarket.nl 10 2026-04-19 2026-08-15
ppr.backmarket.nl 11 2026-05-20 2026-09-15
tr.backmarket.nl 11 2026-05-20 2026-09-15
*.int.backmarket.nl 11 2026-05-20 2026-09-15
*.dev.backmarket.nl 11 2026-05-20 2026-09-15
story.backmarket.nl 11 2026-05-20 2026-09-15
staging.story.backmarket.nl 11 2026-05-20 2026-09-15

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