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 · 255 ms

HostCertsFirst seenLast seen
brd.no 33 2026-03-09 2026-10-02
*.brd.no 24 2026-05-23 2026-10-02
collab.brd.no 2 2026-05-11 2026-06-16
bli-superhelten-i-styret-med.brd.no 11 2026-04-24 2026-10-06
brdfd.brd.no 2 2026-05-12 2026-09-25
devtestfd.brd.no 1 2026-06-02 2026-06-02
id.brd.no 4 2026-03-10 2026-08-10
hoxrud.brd.no 8 2026-05-11 2026-09-20
prodsite.brd.no 4 2026-05-18 2026-07-18
sanity-live.brd.no 6 2026-04-24 2026-09-04
preview-staging.brd.no 3 2026-05-11 2026-09-23
sanity-staging.brd.no 6 2026-04-26 2026-09-04
status.brd.no 5 2026-05-24 2026-09-20
snart.brd.no 4 2026-05-27 2026-07-28
devtest.brd.no 7 2026-03-04 2026-09-21
collab.devtest.brd.no 4 2026-04-28 2026-09-28
preview.brd.no 1 2026-09-03 2026-09-03

Programmatic access: API GET /v1/hosts/brd.no (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/brd.no.