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.

100 hosts (first page) · 239 ms

HostCertsFirst seenLast seen
usd.edu 25 2025-07-07 2026-10-05
*.usd.edu 21 2025-07-06 2026-10-05
expressway-c-01.usd.edu 4 2025-07-07 2026-06-24
expressway-e-01.usd.edu 3 2025-07-07 2026-06-24
usd-aimsweb01.usd.edu 1 2026-05-05 2026-05-05
usd-verde01.usd.edu 1 2025-08-04 2025-08-04
usd-pf01.usd.edu 1 2026-06-08 2026-06-08
usd-uportal01.usd.edu 1 2025-09-09 2025-09-09
usd-vsql01.usd.edu 2 2025-08-06 2026-09-02
dev-vsql01.usd.edu 2 2025-08-06 2026-09-01
usd-ucxn01.usd.edu 6 2025-08-29 2025-11-03
usd-aimsapp01.usd.edu 1 2026-01-07 2026-01-07
uc-cup01.usd.edu 2 2025-08-05 2025-08-05
usd-cup01.usd.edu 2 2025-08-05 2025-08-05
usd-nessus01.usd.edu 1 2026-04-24 2026-04-24
usd-jitterbit01.usd.edu 1 2025-12-23 2025-12-23
usd-uccx01.usd.edu 1 2025-07-10 2025-07-10
uc-unity01.usd.edu 6 2025-08-29 2025-11-03
usd-ise1.usd.edu 27 2026-05-12 2026-09-30
www.usd-ise1.usd.edu 20 2026-07-02 2026-09-30
usd-uportal1.usd.edu 1 2025-09-09 2025-09-09
expressway-c-02.usd.edu 4 2025-07-07 2026-06-24
expressway-e-02.usd.edu 3 2025-07-07 2026-06-24
media02.usd.edu 24 2026-04-30 2026-08-28
usd-pf02.usd.edu 1 2026-06-08 2026-06-08
usd-uportal02.usd.edu 1 2025-09-09 2025-09-09
sdgs02.usd.edu 1 2026-02-18 2026-02-18
usd-ise2.usd.edu 2 2026-08-05 2026-08-05
usd-uportal2.usd.edu 1 2025-09-09 2025-09-09
apps2.usd.edu 1 2025-09-08 2025-09-08
test-apps2.usd.edu 3 2025-07-01 2026-07-03
usd-pf03.usd.edu 1 2026-06-08 2026-06-08
stingray4.usd.edu 1 2025-08-07 2025-08-07
stingray5.usd.edu 1 2025-08-07 2025-08-07
rcg-data.usd.edu 1 2025-08-05 2025-08-05
*.rcg-data.usd.edu 1 2025-08-05 2025-08-05
aimsweb.usd.edu 19 2026-04-30 2026-08-27
expressway-c.usd.edu 6 2025-07-07 2026-06-24
nac.usd.edu 2 2026-01-19 2026-06-08
usd-dnac.usd.edu 5 2025-09-08 2025-10-10
pnpserver.usd-dnac.usd.edu 3 2025-09-08 2025-10-08
ccc.usd.edu 5 2025-10-08 2025-10-10
valt-hsc.usd.edu 3 2025-06-29 2026-07-14
valt-psyc.usd.edu 2 2025-08-04 2026-07-14
usdinvolved.usd.edu 5 2026-05-09 2026-09-06
cfd.usd.edu 4 2026-05-18 2026-10-03
www.cfd.usd.edu 4 2026-05-18 2026-10-03
hybrid.usd.edu 2 2025-08-25 2026-09-28
valt-csd.usd.edu 2 2026-03-30 2026-07-14
sdsd.usd.edu 28 2026-05-21 2026-09-25
td.usd.edu 5 2026-05-10 2026-09-05
expressway-e.usd.edu 6 2025-07-07 2026-06-24
smartdevice.usd.edu 1 2026-06-08 2026-06-08
experience.usd.edu 8 2026-05-07 2026-07-21
exchange.usd.edu 3 2025-08-25 2026-09-28
aceware.usd.edu 18 2025-09-15 2026-09-22
sourcefire.usd.edu 1 2025-08-05 2025-08-05
rcg.usd.edu 5 2026-04-23 2026-08-22
landing.usd.edu 12 2026-05-13 2026-09-08
parking.usd.edu 3 2025-09-05 2026-09-30
cme-training.usd.edu 14 2026-05-29 2026-09-23
catalog.usd.edu 1 2026-05-21 2026-05-21
m.catalog.usd.edu 1 2026-05-21 2026-05-21
usd-shibboleth.usd.edu 2 2026-03-31 2026-08-31
sd-redi.usd.edu 3 2026-05-06 2026-08-11
mri.usd.edu 1 2026-02-18 2026-02-18
link.usd.edu 32 2026-05-27 2026-09-25
dev-portal.usd.edu 10 2026-05-06 2026-09-01
voicemail.usd.edu 6 2025-08-29 2025-11-03
readingroom.usd.edu 3 2026-07-09 2026-09-17
www.readingroom.usd.edu 3 2026-07-09 2026-09-17
archivesadmin.usd.edu 5 2026-05-20 2026-09-21
usd-fusion.usd.edu 1 2026-02-20 2026-02-20
usd-medstation.usd.edu 1 2025-12-31 2025-12-31
test-sso.usd.edu 14 2026-05-30 2026-09-25
map.usd.edu 1 2026-01-06 2026-01-06
iloamp.usd.edu 1 2025-08-04 2025-08-04
usd-asp.usd.edu 24 2026-05-05 2026-09-25
calendar.usd.edu 26 2026-05-27 2026-09-23
autodiscover.usd.edu 2 2025-08-25 2026-09-28
pnpserver.usd.edu 4 2025-10-08 2025-10-10
careeraccelerator.usd.edu 4 2026-05-04 2026-07-26
www.careeraccelerator.usd.edu 4 2026-05-04 2026-07-26
tour.usd.edu 23 2026-05-28 2026-09-26
cas.usd.edu 2 2026-04-01 2026-09-01
solarwinds.usd.edu 1 2026-05-15 2026-05-15
smart-devices.usd.edu 1 2026-06-08 2026-06-08
smartdevices.usd.edu 3 2026-06-08 2026-08-05
libguides.usd.edu 5 2026-04-26 2026-08-24
coyotes.usd.edu 4 2025-08-05 2026-09-28
autodiscover.coyotes.usd.edu 2 2025-08-25 2026-09-28
cloud.goyotes.usd.edu 3 2025-09-08 2026-08-26
image.goyotes.usd.edu 2 2025-08-04 2026-07-13
click.goyotes.usd.edu 1 2025-09-08 2025-09-08
view.goyotes.usd.edu 1 2025-09-08 2025-09-08
archives.usd.edu 4 2026-04-16 2026-08-18
adfs.usd.edu 24 2026-05-01 2026-09-22
www.sdgs.usd.edu 21 2026-01-29 2026-09-03
gis.usd.edu 17 2026-02-18 2026-08-23
usd-ucxn01-ms.usd.edu 2 2025-11-03 2025-11-03

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/usd.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/usd.edu.