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.

42 hosts · 325 ms

HostCertsFirst seenLast seen
signaturgruppen.dk 8 2026-02-20 2026-09-21
*.signaturgruppen.dk 8 2026-02-20 2026-09-21
elastic.signaturgruppen.dk 5 2026-05-31 2026-09-28
status-prod.signaturgruppen.dk 6 2026-06-08 2026-10-04
pingpong.signaturgruppen.dk 5 2026-05-27 2026-09-24
dashboard.opensearch.signaturgruppen.dk 5 2026-05-05 2026-09-02
api.opensearch.signaturgruppen.dk 5 2026-05-05 2026-09-02
prom.opensearch.signaturgruppen.dk 5 2026-05-26 2026-09-23
lab-vpn.signaturgruppen.dk 2 2026-08-11 2026-08-11
unicorn.signaturgruppen.dk 5 2026-05-06 2026-09-03
brokerdemo.signaturgruppen.dk 5 2026-05-08 2026-09-05
brokerdemo-pp.signaturgruppen.dk 5 2026-05-08 2026-09-05
status-pp.signaturgruppen.dk 5 2026-06-08 2026-10-04
brokerdemo-test.signaturgruppen.dk 5 2026-05-08 2026-09-05
ext.signaturgruppen.dk 5 2026-05-18 2026-09-21
grafana.test-ext.signaturgruppen.dk 5 2026-05-30 2026-09-27
dashboard.test-ext.signaturgruppen.dk 5 2026-05-30 2026-09-27
me.test-ext.signaturgruppen.dk 5 2026-05-30 2026-09-27
api.opensearch.test-ext.signaturgruppen.dk 5 2026-05-30 2026-09-27
prom.test-ext.signaturgruppen.dk 5 2026-05-30 2026-09-27
*.ext.signaturgruppen.dk 5 2026-05-18 2026-09-21
grafana.ext.signaturgruppen.dk 4 2026-06-01 2026-07-31
prom-stack-grafana.ext.signaturgruppen.dk 4 2026-05-31 2026-07-30
static.ext.signaturgruppen.dk 5 2026-05-22 2026-09-19
testpipe.prod.ext.signaturgruppen.dk 5 2026-05-17 2026-09-14
minio-console.ext.signaturgruppen.dk 5 2026-05-07 2026-09-04
metrics-sg.ext.signaturgruppen.dk 5 2026-05-16 2026-09-13
whoami.ext.signaturgruppen.dk 5 2026-05-18 2026-09-15
minio-api.ext.signaturgruppen.dk 5 2026-05-08 2026-09-05
request-uri.ext.signaturgruppen.dk 4 2026-06-02 2026-08-01
proxycontrol.ext.signaturgruppen.dk 5 2026-05-15 2026-09-12
prom.ext.signaturgruppen.dk 5 2026-05-18 2026-09-15
oidcecho.ext.signaturgruppen.dk 5 2026-05-14 2026-09-11
lokalidp-demo.ext.signaturgruppen.dk 4 2026-04-18 2026-08-16
metrics.ext.signaturgruppen.dk 4 2026-05-30 2026-07-29
bubbles.ext.signaturgruppen.dk 5 2026-04-23 2026-08-21
push-bubbles.ext.signaturgruppen.dk 5 2026-04-24 2026-08-22
mitid-test-users.ext.signaturgruppen.dk 3 2026-06-13 2026-08-12
testpipe.default.ext.signaturgruppen.dk 4 2026-04-20 2026-08-18
passkeyid-demo-test.ext.signaturgruppen.dk 2 2026-06-04 2026-06-04
testpipe.test.ext.signaturgruppen.dk 4 2026-04-17 2026-08-15
localdev.signaturgruppen.dk 4 2026-05-28 2026-07-27

Programmatic access: API GET /v1/hosts/signaturgruppen.dk (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/signaturgruppen.dk.