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) · 447 ms

HostCertsFirst seenLast seenDNS
nd.edu 8 2025-12-16 2026-09-28 ok
*.nd.edu 29 2025-08-10 2026-09-28 —
ndpd-rodcnps1.nd.edu 1 2026-06-22 2026-06-22 nxdomain
adrodc-nps-05.nd.edu 1 2026-06-22 2026-06-22 nxdomain
adrodc-nps-06.nd.edu 1 2026-06-22 2026-06-22 nxdomain
forum2006.nd.edu 5 2026-05-28 2026-09-25 ok
adrodc-nps-07.nd.edu 1 2026-06-22 2026-06-22 nxdomain
forum2007.nd.edu 5 2026-05-14 2026-09-13 ok
adrodc-nps-08.nd.edu 1 2026-06-22 2026-06-22 nxdomain
gain-uaa.nd.edu 1 2025-09-08 2025-09-08 ok
valt-media.nd.edu 1 2026-04-08 2026-04-08 nxdomain
ra.nd.edu 4 2025-09-18 2026-09-14 nxdomain
www.ra.nd.edu 3 2026-09-11 2026-09-14 nxdomain
cassandra.nd.edu 1 2026-04-08 2026-04-08 ok
ndi-sa.nd.edu 5 2026-04-28 2026-08-14 ok
okta.nd.edu 9 2026-04-15 2026-09-17 ok
delta.nd.edu 6 2026-08-05 2026-10-03 ok
mendoza.nd.edu 13 2026-05-27 2026-09-23 ok
*.mendoza.nd.edu 1 2025-11-03 2025-11-03 —
e287.mendoza.nd.edu 2 2026-05-29 2026-06-03 ok
myexchange-preprod.mendoza.nd.edu 2 2026-01-07 2026-05-29 ok
exchange.mendoza.nd.edu 2 2025-09-22 2026-08-19 ok
www.exchange.mendoza.nd.edu 1 2026-08-19 2026-08-19 nxdomain
myexchange.mendoza.nd.edu 2 2026-01-07 2026-05-25 ok
explore.mendoza.nd.edu 11 2026-05-02 2026-08-28 ok
mcob-bi.mendoza.nd.edu 1 2026-01-12 2026-01-12 nxdomain
www.mcob-bi.mendoza.nd.edu 1 2026-01-12 2026-01-12 nxdomain
mail.mendoza.nd.edu 7 2026-05-28 2026-09-25 ok
marcom.mendoza.nd.edu 2 2025-09-22 2026-09-24 ok
www.marcom.mendoza.nd.edu 1 2026-09-24 2026-09-24 nxdomain
dev.admin.mendoza.nd.edu 6 2026-07-01 2026-07-01 ok
go.mendoza.nd.edu 5 2026-05-11 2026-09-07 ok
mcob-apis.mendoza.nd.edu 5 2026-01-05 2026-06-12 ok
interact.mendoza.nd.edu 10 2026-04-20 2026-09-17 ok
content.mendoza.nd.edu 2 2025-06-23 2026-05-24 ok
dev.mendoza.nd.edu 12 2026-07-01 2026-07-02 ok
myexchange-dev.mendoza.nd.edu 2 2026-01-07 2026-05-25 ok
directory.mendoza.nd.edu 1 2025-11-24 2025-11-24 ok
recruitmendoza.nd.edu 2 2025-10-02 2026-09-02 ok
*.recruitmendoza.nd.edu 2 2025-10-02 2026-09-02 —
schnell-lab.nd.edu 6 2026-04-10 2026-09-23 ok
www.schnell-lab.nd.edu 6 2026-04-10 2026-09-23 ok
halab.nd.edu 7 2025-06-27 2026-08-17 ok
*.halab.nd.edu 3 2025-06-27 2025-06-27 —
hopelab.nd.edu 3 2025-06-27 2026-05-28 ok
*.hopelab.nd.edu 3 2025-06-27 2026-05-28 —
reellab.nd.edu 2 2025-07-02 2026-06-02 ok
*.reellab.nd.edu 2 2025-07-02 2026-06-02 —
academicweb.nd.edu 2 2025-06-10 2026-05-11 ok
*.academicweb.nd.edu 2 2025-06-10 2026-05-11 —
clubhub.nd.edu 21 2026-05-11 2026-09-30 ok
sub.nd.edu 5 2026-06-04 2026-09-16 ok
www.sub.nd.edu 5 2026-04-22 2026-08-15 ok
sibc.nd.edu 3 2026-06-17 2026-08-25 ok
www.sibc.nd.edu 3 2026-06-17 2026-08-25 ok
*.cc.nd.edu 1 2025-12-11 2025-12-11 —
expressway-edge2.cc.nd.edu 4 2026-01-20 2026-03-05 ok
print2.cc.nd.edu 3 2025-07-24 2026-07-21 nxdomain
www.print2.cc.nd.edu 1 2026-07-21 2026-07-21 nxdomain
blackpearl-data.cc.nd.edu 1 2026-01-15 2026-01-15 nxdomain
nps11-prod.cc.nd.edu 1 2026-06-22 2026-06-22 nxdomain
cctvapp1-prod.cc.nd.edu 1 2025-12-12 2025-12-12 nxdomain
nps12-prod.cc.nd.edu 1 2026-06-22 2026-06-22 nxdomain
nps13-prod.cc.nd.edu 1 2026-06-22 2026-06-22 nxdomain
nps14-prod.cc.nd.edu 1 2026-06-22 2026-06-22 nxdomain
onbase-prod.cc.nd.edu 3 2025-10-25 2026-09-25 ok
obforms-prod.cc.nd.edu 5 2025-10-25 2026-09-25 ok
expressway-edge.cc.nd.edu 4 2026-01-20 2026-03-05 ok
web-auth.cc.nd.edu 1 2026-01-05 2026-01-05 ok
macdtm.cc.nd.edu 1 2025-12-22 2025-12-22 ok
macdtmdp.cc.nd.edu 1 2025-12-16 2025-12-16 ok
mprint.cc.nd.edu 2 2025-07-23 2026-07-21 nxdomain
www.mprint.cc.nd.edu 1 2026-07-21 2026-07-21 nxdomain
cctvapp1-test.cc.nd.edu 1 2026-01-22 2026-01-22 nxdomain
keyserv1-test.cc.nd.edu 1 2026-03-16 2026-03-16 nxdomain
nps-test.cc.nd.edu 1 2026-06-22 2026-06-22 nxdomain
print-test.cc.nd.edu 1 2026-03-02 2026-03-02 nxdomain
keyserv.cc.nd.edu 2 2025-07-14 2026-07-06 ok
rview.cc.nd.edu 2 2026-02-11 2026-03-02 ok
vpn-dc.nd.edu 1 2026-05-27 2026-05-27 ok
uhsxray1-prod.dc.nd.edu 3 2026-04-27 2026-06-29 nxdomain
ecdc.nd.edu 5 2026-04-23 2026-08-05 ok
loveethic.nd.edu 10 2026-06-09 2026-10-05 ok
static.nd.edu 1 2025-11-12 2025-11-12 ok
lc.nd.edu 1 2026-02-11 2026-02-11 nxdomain
*.lc.nd.edu 1 2026-02-11 2026-02-11 —
aalc.nd.edu 18 2026-05-16 2026-09-30 ok
elc.nd.edu 5 2026-05-24 2026-09-21 ok
*.poc.nd.edu 1 2025-07-02 2025-07-02 —
superior-01.crc.nd.edu 2 2025-08-08 2026-07-16 nxdomain
gh200-001.crc.nd.edu 2 2025-10-31 2026-07-16 nxdomain
crcfe01.crc.nd.edu 2 2026-05-07 2026-07-16 nxdomain
fayfe01.crc.nd.edu 2 2025-10-15 2026-07-16 nxdomain
osdfcache01.crc.nd.edu 3 2026-04-09 2026-07-16 ok
www.osdfcache01.crc.nd.edu 1 2026-06-04 2026-06-04 nxdomain
ldap01.crc.nd.edu 1 2026-01-11 2026-01-11 nxdomain
hactar01.crc.nd.edu 1 2025-09-25 2025-09-25 ok
bels01.crc.nd.edu 1 2026-09-17 2026-09-17 nxdomain
primeradiant01.crc.nd.edu 1 2025-09-25 2025-09-25 ok
crcrest01.crc.nd.edu 1 2026-05-17 2026-05-17 nxdomain

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/nd.edu.

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/nd.edu.