Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

86 hosts · 393 ms

HostCertsFirst seenLast seenDNS
apc.dk 12 2025-10-21 2026-09-21 ok
*.apc.dk 3 2025-10-20 2026-09-19 —
timeline-db0.apc.dk 5 2026-06-04 2026-09-30 nxdomain
nipss-stage0.apc.dk 5 2026-06-05 2026-10-03 ok
container-repo0.apc.dk 5 2026-05-06 2026-09-01 nxdomain
nipss0.apc.dk 5 2026-04-25 2026-08-21 ok
print0.apc.dk 5 2026-05-02 2026-08-28 ok
nipss-test0.apc.dk 4 2026-06-06 2026-10-04 ok
mitid-gw0.apc.dk 5 2026-05-25 2026-09-21 ok
fp2.apc.dk 1 2026-10-05 2026-10-05 ok
v2.apc.dk 1 2026-08-07 2026-08-07 ok
fs-hel1dc10-0.s3.apc.dk 4 2026-06-08 2026-10-04 nxdomain
fs-fsn1dc1-0.s3.apc.dk 4 2026-06-08 2026-10-04 nxdomain
fs-fsn1dc22-0.s3.apc.dk 5 2026-06-07 2026-10-03 nxdomain
nas-apcstr-backup.apc-0.s3.apc.dk 13 2026-06-07 2026-10-04 ok
hel0.s3.apc.dk 4 2026-06-08 2026-10-04 ok
fsn0.s3.apc.dk 4 2026-06-08 2026-10-04 ok
main.s3.apc.dk 13 2026-06-07 2026-10-04 nxdomain
ollama.apc.dk 1 2026-09-26 2026-09-26 nxdomain
grafana.apc.dk 7 2026-06-03 2026-09-29 ok
argocd-grpc.apc.dk 5 2026-05-07 2026-09-04 nxdomain
argocd.apc.dk 5 2026-05-07 2026-09-04 ok
document-service.apc.dk 5 2026-05-09 2026-09-06 ok
docservice.apc.dk 6 2026-06-06 2026-10-05 ok
worklife.apc.dk 5 2026-05-26 2026-09-23 ok
apc-stage.apc.dk 5 2026-05-28 2026-09-25 ok
lldap-stage.apc.dk 5 2026-04-25 2026-08-23 nxdomain
nipss-stage.apc.dk 5 2026-06-05 2026-10-03 ok
mitid-gw-stage.apc.dk 5 2026-05-22 2026-09-17 ok
payroll-gateway-stage.apc.dk 6 2026-05-06 2026-09-01 ok
forge.apc.dk 4 2026-04-21 2026-08-18 ok
hubble.apc.dk 4 2026-04-13 2026-08-11 ok
auth.apc.dk 5 2026-05-30 2026-09-27 ok
webapi.apc.dk 1 2026-08-21 2026-08-21 ok
keycloak.apc.dk 5 2026-05-30 2026-09-27 ok
sip.main.apc.dk 5 2026-04-28 2026-08-26 nxdomain
test.nipss.main.apc.dk 4 2026-04-18 2026-08-16 ok
openbao.apc.dk 5 2026-05-13 2026-09-10 ok
epinio.apc.dk 1 2026-08-26 2026-08-26 ok
auth.epinio.apc.dk 1 2026-08-26 2026-08-26 ok
ldap.apc.dk 7 2026-04-26 2026-09-13 ok
lldap.apc.dk 7 2026-04-26 2026-09-13 nxdomain
fp.apc.dk 3 2026-10-05 2026-10-05 nxdomain
hub.app.apc.dk 2 2026-09-08 2026-09-17 ok
cpr-service.app.apc.dk 1 2026-09-19 2026-09-19 ok
raadgiverportal.app.apc.dk 5 2026-08-27 2026-09-04 ok
payroll-system.app.apc.dk 1 2026-09-12 2026-09-12 ok
fm.app.apc.dk 1 2026-08-20 2026-08-20 ok
pensionbroker.app.apc.dk 1 2026-09-20 2026-09-20 ok
hr.app.apc.dk 2 2026-09-16 2026-09-20 ok
rancher.apc.dk 5 2026-05-13 2026-09-10 ok
alertmgr.apc.dk 5 2026-05-29 2026-09-24 ok
gh.mirror.apc.dk 1 2026-09-01 2026-09-01 ok
gh-raw.mirror.apc.dk 1 2026-09-01 2026-09-01 ok
metrics.apc.dk 5 2026-05-24 2026-09-19 ok
docs.apc.dk 4 2026-06-06 2026-09-21 nxdomain
nipss.apc.dk 5 2026-04-25 2026-08-21 nxdomain
chat.apc.dk 1 2026-09-26 2026-09-26 nxdomain
git.apc.dk 5 2026-04-20 2026-08-18 ok
vault.apc.dk 5 2026-04-29 2026-08-26 ok
print.apc.dk 5 2026-05-02 2026-08-28 ok
nipss-test.apc.dk 4 2026-06-06 2026-10-04 ok
ftt.apc.dk 5 2026-05-25 2026-09-20 ok
payroll-gateway-dev.apc.dk 5 2026-05-07 2026-09-03 ok
docserv.apc.dk 3 2026-09-14 2026-10-05 ok
mitid-gw.apc.dk 5 2026-05-25 2026-09-21 ok
www.apc.dk 11 2026-04-25 2026-09-21 ok
obex.apc.dk 4 2026-04-15 2026-08-13 ok
identity-idp-admin-api.obex.apc.dk 4 2026-04-15 2026-08-13 ok
platform.obex.apc.dk 4 2026-04-15 2026-08-13 ok
identity-idp-admin.obex.apc.dk 4 2026-04-15 2026-08-13 ok
identity-idp-server.obex.apc.dk 4 2026-04-15 2026-08-13 ok
argocd-grpc.sandbox.apc.dk 5 2026-05-05 2026-09-02 nxdomain
argocd.sandbox.apc.dk 5 2026-05-05 2026-09-02 ok
app-hub-backend.sandbox.apc.dk 1 2026-09-08 2026-09-08 ok
app-raadgiverportal-backend.sandbox.apc.dk 1 2026-08-27 2026-08-27 ok
hubble.sandbox.apc.dk 5 2026-05-05 2026-09-02 ok
nemlogin-shared-auth.sandbox.apc.dk 1 2026-08-13 2026-08-13 ok
n8n.sandbox.apc.dk 5 2026-05-11 2026-09-08 ok
webhook.n8n.sandbox.apc.dk 5 2026-05-15 2026-09-12 ok
epinio.sandbox.apc.dk 1 2026-08-11 2026-08-11 ok
auth.epinio.sandbox.apc.dk 1 2026-08-12 2026-08-12 ok
epinio.epinio.sandbox.apc.dk 1 2026-08-11 2026-08-11 ok
apc-document-service-vbow6u.sandbox.apc.dk 1 2026-10-05 2026-10-05 ok
apc-document-service-4j3a1z.sandbox.apc.dk 1 2026-08-11 2026-08-11 ok
payroll-gateway.apc.dk 5 2026-05-07 2026-09-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/apc.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/apc.dk.