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) · 396 ms

HostCertsFirst seenLast seenDNS
towson.edu 17 2025-06-09 2026-10-06 ok
*.towson.edu 2 2025-07-11 2026-07-08 —
cam-cdc-dir01.towson.edu 1 2025-10-31 2025-10-31 nxdomain
infocloudproda1.towson.edu 2 2026-03-06 2026-07-19 ok
infocloudqa1.towson.edu 2 2026-03-02 2026-07-15 ok
infoclouddeva1.towson.edu 2 2026-03-02 2026-07-15 ok
cucm-sub1.towson.edu 2 2026-06-09 2026-06-09 nxdomain
infoblox-cdc1.towson.edu 1 2026-02-26 2026-02-26 nxdomain
infoblox-udc1.towson.edu 1 2026-02-26 2026-02-26 nxdomain
vcsexpc1.towson.edu 5 2026-03-24 2026-10-06 nxdomain
infocloudprod1.towson.edu 2 2026-03-03 2026-07-15 ok
lglprod1.towson.edu 2 2025-07-09 2026-07-09 nxdomain
vcsexpe1.towson.edu 4 2026-03-23 2026-10-06 ok
ise-cdc-pan1.towson.edu 1 2026-06-15 2026-06-15 nxdomain
ise-udc-pan1.towson.edu 1 2026-06-15 2026-06-15 nxdomain
ise-cdc-psn1.towson.edu 1 2026-06-15 2026-06-15 nxdomain
ise-udc-psn1.towson.edu 1 2026-06-15 2026-06-15 nxdomain
hcmsp1.towson.edu 2 2026-06-10 2026-07-09 nxdomain
cssp1.towson.edu 1 2026-07-09 2026-07-09 ok
vcsexpc-cluster1.towson.edu 5 2026-03-24 2026-10-06 nxdomain
vcsexpe-cluster1.towson.edu 4 2026-03-23 2026-10-06 nxdomain
ise-cdc-mnt1.towson.edu 1 2026-06-15 2026-06-15 nxdomain
ise-udc-mnt1.towson.edu 1 2026-06-15 2026-06-15 nxdomain
ets-test1.towson.edu 1 2026-03-04 2026-03-04 nxdomain
infoclouddev1.towson.edu 2 2026-03-03 2026-07-15 ok
stratusdev1.towson.edu 2 2026-03-02 2026-07-15 ok
cam-udc-dir02.towson.edu 1 2025-10-31 2025-10-31 nxdomain
cucm-sub2.towson.edu 2 2026-06-09 2026-06-09 nxdomain
eoc2.towson.edu 1 2026-01-12 2026-01-12 nxdomain
vcsexpc2.towson.edu 5 2026-03-24 2026-10-06 nxdomain
infoprod2.towson.edu 1 2026-01-29 2026-01-29 nxdomain
vcsexpe2.towson.edu 4 2026-03-23 2026-10-06 ok
idf2.towson.edu 1 2026-05-12 2026-05-12 nxdomain
crestron2.towson.edu 3 2025-10-08 2026-09-16 nxdomain
aldevzoo2.towson.edu 1 2026-01-12 2026-01-12 nxdomain
printcenter2.towson.edu 1 2026-03-31 2026-03-31 ok
ets-test2.towson.edu 1 2026-03-04 2026-03-04 nxdomain
stratusdev2.towson.edu 2 2026-03-02 2026-07-15 ok
athlfmweb3.towson.edu 5 2025-07-29 2026-07-31 nxdomain
cucm-sub3.towson.edu 2 2026-06-09 2026-06-09 nxdomain
infoprod3.towson.edu 1 2026-01-29 2026-01-29 nxdomain
crestron3.towson.edu 5 2026-03-05 2026-09-16 nxdomain
ets-test3.towson.edu 1 2026-03-04 2026-03-04 nxdomain
stratusdev3.towson.edu 2 2026-03-06 2026-07-19 ok
cucm-sub4.towson.edu 2 2026-06-09 2026-06-09 nxdomain
stratusdev4.towson.edu 2 2026-03-02 2026-07-15 ok
365.towson.edu 2 2026-03-03 2026-07-15 ok
m365.towson.edu 2 2026-02-17 2026-06-27 ok
cucm-sub5.towson.edu 2 2026-06-09 2026-06-09 nxdomain
cucm-sub6.towson.edu 2 2026-06-09 2026-06-09 nxdomain
ets-test7.towson.edu 1 2026-01-22 2026-01-22 nxdomain
hcmqa.towson.edu 2 2025-10-09 2026-07-09 nxdomain
csqa.towson.edu 2 2025-10-09 2026-07-09 ok
sera.towson.edu 2 2026-03-06 2026-07-18 ok
cssaua.towson.edu 1 2026-07-09 2026-07-09 nxdomain
hcmua.towson.edu 1 2026-07-09 2026-07-09 nxdomain
crabilab.towson.edu 4 2026-06-08 2026-10-06 ok
www.crabilab.towson.edu 4 2026-06-08 2026-10-06 ok
maplab.towson.edu 5 2026-05-19 2026-09-16 ok
www.maplab.towson.edu 5 2026-05-19 2026-09-16 ok
ccweb.towson.edu 1 2025-08-25 2025-08-25 nxdomain
athlfmweb.towson.edu 5 2025-07-29 2026-07-31 nxdomain
tigerweb.towson.edu 1 2026-04-23 2026-04-23 ok
armsweb.towson.edu 1 2026-04-16 2026-04-16 ok
inowweb.towson.edu 3 2025-07-09 2026-07-08 ok
shib.towson.edu 2 2025-08-05 2026-07-06 ok
pb.towson.edu 1 2026-06-22 2026-06-22 nxdomain
ub.towson.edu 2 2026-03-06 2026-07-19 ok
cucm-pub.towson.edu 2 2026-06-09 2026-06-09 nxdomain
scom-web1-cdc.towson.edu 2 2025-07-09 2026-07-09 nxdomain
scom-web2-udc.towson.edu 2 2025-07-09 2026-07-09 nxdomain
cer-sec.towson.edu 1 2025-12-08 2025-12-08 nxdomain
uccx-sec.towson.edu 3 2025-10-06 2026-10-06 nxdomain
unity-sec.towson.edu 2 2025-07-15 2026-07-14 nxdomain
mc.towson.edu 2 2026-03-03 2026-07-15 ok
vpnc.towson.edu 1 2026-05-15 2026-05-15 ok
eoc.towson.edu 1 2026-01-12 2026-01-12 nxdomain
lead.towson.edu 2 2026-03-03 2026-07-15 ok
grad.towson.edu 2 2026-03-03 2026-07-15 ok
involved.towson.edu 5 2026-05-10 2026-09-07 ok
netid.towson.edu 2 2025-09-03 2025-11-10 ok
brand.towson.edu 5 2025-08-21 2026-08-19 ok
pbcsprod.towson.edu 2 2026-03-02 2026-07-15 ok
arcsprod.towson.edu 2 2026-03-02 2026-07-15 ok
stratusprod.towson.edu 2 2026-03-06 2026-07-19 ok
onecard.towson.edu 20 2026-04-22 2026-09-19 ok
dashboard.towson.edu 4 2025-08-27 2026-07-29 ok
blackboard.towson.edu 3 2025-08-11 2026-08-12 ok
cgprd.towson.edu 4 2025-08-21 2026-07-09 ok
hcmprd.towson.edu 2 2025-10-09 2026-07-09 ok
csprd.towson.edu 3 2025-09-24 2026-07-09 ok
awsprd.towson.edu 1 2026-03-03 2026-03-03 nxdomain
td.towson.edu 5 2025-08-21 2026-08-19 ok
marketingcloud.towson.edu 2 2026-03-02 2026-07-15 ok
archivesspace.towson.edu 3 2025-08-25 2026-08-19 ok
office.towson.edu 2 2026-03-03 2026-07-15 ok
inside.towson.edu 2 2026-04-16 2026-04-16 ok
test-inside.towson.edu 3 2026-03-12 2026-09-21 nxdomain
blackboard-stage.towson.edu 3 2025-08-11 2026-08-20 ok
libraries-stage.towson.edu 2 2025-10-02 2026-10-03 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/towson.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/towson.edu.