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.

100 hosts (first page) · 610 ms

HostCertsFirst seenLast seenDNS
kpn.com 2 2025-08-18 2026-08-28 ok
cloud-backup-01.kpn.com 1 2026-04-16 2026-04-16 ok
quarantaine-a1.kpn.com 1 2026-01-08 2026-01-08 ok
quarantaine-p1.kpn.com 2 2025-07-14 2026-07-09 ok
bue-cv1.kpn.com 2 2025-08-06 2026-07-21 ok
kms-2.kpn.com 2 2026-08-25 2026-09-03 ok
cloud-backup-02.kpn.com 1 2026-05-07 2026-05-07 ok
quarantaine-a2.kpn.com 1 2026-01-08 2026-01-08 ok
gcapps-api2.kpn.com 1 2026-07-15 2026-07-15 ok
email2.kpn.com 2 2026-04-28 2026-04-28 nxdomain
quarantaine-p2.kpn.com 2 2025-07-14 2026-07-09 ok
antiddos2.kpn.com 2 2025-09-16 2026-09-04 ok
gcapps2.kpn.com 1 2026-09-23 2026-09-23 ok
verifai-v2.kpn.com 2 2025-10-10 2026-10-05 ok
mijnbestelling-test3.kpn.com 1 2026-01-19 2026-01-19 ok
www.mijnbestelling-test3.kpn.com 1 2026-01-19 2026-01-19 nxdomain
pca.kpn.com 5 2026-05-21 2026-09-14 ok
dev.pca.kpn.com 5 2026-06-02 2026-09-27 ok
smarttv.pca.kpn.com 5 2026-06-02 2026-09-27 ok
pizza.kpn.com 29 2026-09-29 2026-10-05 nodata
eid-lab.kpn.com 1 2026-02-25 2026-02-25 ok
disc.eid-lab.kpn.com 1 2026-02-25 2026-02-25 ok
brk.eid-lab.kpn.com 1 2026-02-25 2026-02-25 ok
idp.eid-lab.kpn.com 1 2026-02-25 2026-02-25 ok
cert.idp.eid-lab.kpn.com 1 2026-02-25 2026-02-25 ok
pdp.eid-lab.kpn.com 1 2026-02-25 2026-02-25 ok
b2b-portal-acc.sympac.kpn.com 2 2026-03-02 2026-08-24 ok
b2b-portal.sympac.kpn.com 2 2026-03-17 2026-08-24 ok
test-b2b-portal.sympac.kpn.com 3 2026-01-29 2026-09-15 ok
b2b-portal-int.sympac.kpn.com 1 2026-01-23 2026-01-23 ok
eid-acc.kpn.com 2 2025-12-15 2026-04-14 ok
disc.eid-acc.kpn.com 2 2025-09-30 2026-04-14 ok
brk.eid-acc.kpn.com 2 2025-12-15 2026-04-14 ok
idp.eid-acc.kpn.com 2 2025-12-15 2026-04-14 ok
cert.idp.eid-acc.kpn.com 2 2025-12-15 2026-04-14 ok
aip.eid-acc.kpn.com 2 2025-12-15 2026-04-14 ok
serviscope-acc.kpn.com 1 2026-01-23 2026-01-23 ok
onlineselfcare-acc.kpn.com 1 2026-01-29 2026-01-29 ok
solve-acc.kpn.com 1 2025-12-08 2025-12-08 ok
gcapps-api-acc.kpn.com 2 2026-05-08 2026-06-05 ok
gcapps-callback-acc.kpn.com 2 2026-05-16 2026-06-05 ok
gcapps-portal-acc.kpn.com 2 2026-05-24 2026-06-05 ok
klassecontact-app-acc.kpn.com 1 2026-01-16 2026-01-16 ok
fiber-acc.kpn.com 1 2026-02-02 2026-02-02 ok
gcapps-scheduler-acc.kpn.com 1 2026-05-15 2026-05-15 nxdomain
antares-acc.kpn.com 3 2025-11-13 2026-09-23 ok
gcapps-tools-acc.kpn.com 2 2026-05-12 2026-06-05 ok
gcapps-sessions-acc.kpn.com 1 2026-06-02 2026-06-02 ok
talos-acc.kpn.com 1 2025-11-12 2025-11-12 ok
gcapps-acc.kpn.com 2 2026-05-17 2026-06-05 ok
gcapps-widgets-acc.kpn.com 1 2026-05-11 2026-05-11 nodata
email2.acc.kpn.com 2 2026-04-28 2026-04-28 nxdomain
mailencloud.acc.kpn.com 5 2026-07-16 2026-08-20 ok
share.mailencloud.acc.kpn.com 5 2026-07-16 2026-08-20 ok
instellingen.mailencloud.acc.kpn.com 5 2026-05-06 2026-08-26 ok
imap.mailencloud.acc.kpn.com 5 2026-07-16 2026-08-20 ok
pop.mailencloud.acc.kpn.com 3 2026-08-19 2026-08-20 ok
smtp.mailencloud.acc.kpn.com 3 2026-07-16 2026-08-20 ok
dav.mailencloud.acc.kpn.com 3 2026-08-19 2026-08-20 ok
kpncloud.acc.kpn.com 5 2026-04-14 2026-09-29 ok
esim-wearable.acc.kpn.com 1 2026-04-29 2026-04-29 ok
www.esim-wearable.acc.kpn.com 1 2026-04-29 2026-04-29 nxdomain
veilig.acc.kpn.com 5 2026-05-08 2026-08-28 ok
internet.veilig.acc.kpn.com 6 2026-04-10 2026-09-25 ok
api.acc.kpn.com 1 2025-11-27 2025-11-27 ok
ws.api.acc.kpn.com 3 2025-09-18 2026-10-01 ok
www.ws.api.acc.kpn.com 3 2025-09-18 2026-10-01 nxdomain
www.api.acc.kpn.com 1 2025-11-27 2025-11-27 nxdomain
email.acc.kpn.com 5 2026-06-02 2026-09-22 ok
freeler-api.email.acc.kpn.com 5 2026-04-14 2026-09-29 ok
freeler.email.acc.kpn.com 11 2026-04-10 2026-09-25 ok
inloggen.acc.kpn.com 4 2025-06-19 2026-06-19 ok
www.inloggen.acc.kpn.com 4 2025-06-19 2026-06-19 nxdomain
login.acc.kpn.com 10 2026-04-28 2026-08-19 ok
mijn.acc.kpn.com 2 2025-06-11 2025-12-17 nodata
www.mijn.acc.kpn.com 1 2025-06-11 2025-06-11 nxdomain
connect.acc.kpn.com 3 2026-07-10 2026-09-04 ok
netflix.vgw.acc.kpn.com 5 2026-05-01 2026-08-21 ok
xbox.acc.kpn.com 5 2026-04-30 2026-08-20 ok
viaplay.acc.kpn.com 7 2026-04-30 2026-08-21 ok
upacc.eherkenningacc.kpn.com 1 2026-09-01 2026-09-01 ok
geosservicesacc.kpn.com 2 2025-10-06 2026-09-25 ok
spoedzorgconnectacc.kpn.com 1 2025-12-05 2025-12-05 ok
prod.sfdc.kpn.com 1 2026-07-27 2026-07-27 nxdomain
test.sfdc.kpn.com 1 2026-07-21 2026-07-21 nxdomain
sat-lic.kpn.com 2 2026-03-04 2026-08-10 ok
static.kpn.com 2 2025-08-18 2026-08-28 ok
digiloc.kpn.com 3 2025-10-13 2026-09-30 ok
mmp.mpc.kpn.com 2 2025-10-14 2026-09-25 ok
omsc.kpn.com 1 2026-06-26 2026-06-26 ok
www.omsc.kpn.com 1 2026-06-26 2026-06-26 nxdomain
id.kpn.com 3 2025-09-05 2026-08-28 ok
prepaid.kpn.com 2 2025-07-28 2026-06-28 ok
eid.kpn.com 1 2025-12-15 2025-12-15 ok
disc.eid.kpn.com 1 2026-05-21 2026-05-21 ok
brk.eid.kpn.com 1 2025-12-15 2025-12-15 ok
idp.eid.kpn.com 1 2025-12-15 2025-12-15 ok
cert.idp.eid.kpn.com 1 2025-12-15 2025-12-15 ok
aip.eid.kpn.com 1 2025-12-15 2025-12-15 ok
inbeeld.kpn.com 3 2026-04-29 2026-09-29 ok

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/kpn.com.

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/kpn.com.