Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

cern.ch

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

DNS Check HTTP Check Run Full Scan .ch TLD

Run a live full scan of cern.ch

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
—
A/AAAA targets
Subdomains
—
CT + scan + body
Record Types
—
seen in DNS
Observed Certs
—
in our scans

DNS Records

A
—
AAAA
—
MX
—
NS
—
TXT
—
CNAME
—
CAA
—

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain Resolves to Last seen
autodiscover.cern.ch
40.104.162.248 2603:1026:c11:914::8 2603:1026:900:29::5f 2603:1026:c11:c54::8 +64
2026-07-31 02:23:46.063
s3.cern.ch
188.185.19.171 2001:1458:d00:65::100:32a 2001:1458:d00:3f::100:2d9 2001:1458:d00:63::100:39a +32
2026-07-31 02:23:46.063
s3-website.cern.ch
188.185.19.171 2001:1458:d00:65::100:32a 2001:1458:d00:18::1ee 2001:1458:d00:12::3e0 +16
2026-07-26 11:12:24.617
pandaserver.cern.ch
188.185.64.45 2001:1458:d00:1::100:296 2001:1458:d00:62::100:493 2001:1458:d00:65::100:475 +14
2026-07-21 00:38:37.564
pandaserverlb.cern.ch
188.185.64.19 2001:1458:d00:62::100:493 2001:1458:d00:1::100:592 2001:1458:201:e4::100:322 +14
2026-07-21 00:38:37.564
linuxsoft.cern.ch
137.138.55.108 2001:1458:d00:24::100:356 2001:1458:d00:17::100:24e 2001:1458:d00:61::100:3d6 +12
2026-07-28 17:34:09.807
wowza.cern.ch
188.184.94.155 188.184.106.37 188.185.75.114 188.184.95.48 +11
2026-07-22 18:38:07.226
wowzalb.cern.ch
188.185.75.114 188.184.103.132 188.185.86.29 137.138.63.173 +11
2026-07-22 18:38:07.226
s3-fr-prevessin-1.cern.ch
188.184.51.16 2001:1458:d00:59::100:8 2001:1458:d00:5a::100:15 2001:1458:d00:5a::100:18 +10
2026-07-26 11:12:24.617
gitlab-pages-backend.cern.ch
137.138.155.161 188.185.50.215 2001:1458:d00:3a::100:100 2001:1458:d00:3a::100:332 +8
2026-07-24 00:57:54.709
gitlab-registry.cern.ch
188.184.99.158 188.184.99.238 2001:1458:d00:61::100:205 2001:1458:d00:13::100:109 +8
2026-07-24 00:57:54.709
gitlab.cern.ch
188.184.99.158 2001:1458:d00:3a::100:332 2001:1458:d00:13::100:109 2001:1458:d00:24::100:1b +8
2026-07-31 02:23:46.063
monit-grafana.cern.ch
188.185.138.191 2001:1458:d03:2::100:31b 2001:1458:d00:6a::100:3c1 2001:1458:d00:66::100:217 +8
2026-07-27 22:09:31.292
pages.cern.ch
188.185.43.149 188.184.99.158 2001:1458:d00:3a::100:100 2001:1458:d00:24::100:1b +8
2026-07-24 00:57:54.709
rog.cern.ch
188.185.119.226 188.185.127.73 188.185.39.189 188.185.25.61 +6
2026-07-26 12:57:18.631
cds.cern.ch
188.185.6.133 2001:1458:d00:14::100:240 2001:1458:d00:62::100:4cf 2001:1458:d00:14::100:16f +4
2026-07-21 08:54:38.970
groups.cern.ch
188.185.41.108 2001:1458:d00:61::100:48d 2001:1458:d00:24::100:2e1 2001:1458:d00:3a::100:20d +4
2026-07-28 01:38:51.183
account.cern.ch
188.184.98.92 2001:1458:d00:61::100:48d 2001:1458:d00:3a::100:20d 2001:1458:d00:24::100:2e1 +2
2026-07-31 02:23:46.063
atlas.web.cern.ch
137.138.55.232 2001:1458:d00:17::100:9e 2001:1458:d00:39::100:130 2001:1458:d00:2c::100:32c +2
2026-07-26 22:38:01.264
atlasdqm.web.cern.ch
137.138.55.232 2001:1458:d00:2c::100:32c 2001:1458:d00:39::100:130 2001:1458:d00:17::100:9e +2
2026-06-16 07:28:31.576
cds-blog.web.cern.ch
188.185.47.135 188.185.41.38 188.185.48.154 2001:1458:d00:61::100:5d3 +2
2026-05-27 06:31:58.948
cern60.web.cern.ch
188.184.111.229 137.138.55.232 188.184.96.45 2001:1458:d00:17::100:9e +2
2026-05-27 06:31:58.948
cernbox.docs.cern.ch
188.184.111.229 137.138.55.232 188.184.96.45 2001:1458:d00:2c::100:32c +2
2026-07-28 07:09:20.615
cerngt.cern.ch
188.184.64.163 2001:1458:201:a4::100:2a2 2001:1458:d00:6f::100:3f0 2001:1458:d00:6f::100:266 +2
2026-06-14 23:52:20.226
cerngtnew.cern.ch
188.184.79.186 188.184.79.203 2001:1458:d00:6f::100:266 2001:1458:d00:6f::100:3f0 +2
2026-06-14 23:52:20.226
cernts-homeless.cern.ch
188.184.79.55 188.184.100.27 188.184.100.54 2001:1458:d00:6f::100:120 +2
2026-06-14 23:52:20.226
cernvm-forum.cern.ch
188.185.47.135 188.185.41.38 188.185.48.154 2001:1458:d00:25::100:5c4 +2
2026-06-18 09:35:06.119
clouddocs.web.cern.ch
188.184.111.229 2001:1458:d00:39::100:130 2001:1458:d00:2c::100:32c 2001:1458:d00:17::100:9e +2
2026-05-27 01:58:07.151
cms-hepcdn.web.cern.ch
188.185.49.163 188.184.98.92 188.185.41.108 2001:1458:d00:24::100:2e1 +2
2026-06-19 10:48:48.591
cmshcalweb01.cern.ch
188.185.46.121 188.185.42.119 188.185.48.40 2001:1458:d00:61::100:103 +2
2026-06-18 06:06:08.648
cmsweb-testbed.cern.ch
188.185.25.202 188.185.29.242 188.185.31.221 137.138.54.240 +2
2026-07-24 00:17:08.323
cmsweb.cern.ch
188.185.89.194 188.184.75.82 188.184.89.113 188.185.101.116 +2
2026-07-26 14:36:44.369
directory.web.cern.ch
188.185.46.121 2001:1458:d00:24::100:281 2001:1458:d00:61::100:103 2001:1458:d00:25::100:1f8 +2
2026-07-26 11:52:50.016
e-publishing.cern.ch
188.185.46.121 188.185.42.119 188.185.48.40 2001:1458:d00:61::100:103 +2
2026-06-19 06:40:30.157
educational-resources.web.cern.ch
188.185.43.245 188.185.51.218 137.138.52.182 2001:1458:d00:17::100:205 +2
2026-07-24 09:50:09.036
gis-next-prod.cern.ch
188.185.49.163 188.184.98.92 188.185.41.108 2001:1458:d00:24::100:2e1 +2
2026-06-23 16:45:28.491
gis-next-qa.cern.ch
188.185.41.108 188.184.98.92 188.185.49.163 2001:1458:d00:3a::100:20d +2
2026-06-21 13:47:23.286
gitlab-dev.cern.ch
188.185.51.81 2001:1458:d00:2d::100:467 2001:1458:d00:61::100:209 2001:1458:d00:3a::100:364 +2
2026-07-24 00:57:54.709
gitlab-mdc.cern.ch
137.138.123.4 188.184.97.179 188.185.47.19 2001:1458:d00:25::100:4b0 +2
2026-06-01 14:21:44.811
gitlab-okd.cern.ch
137.138.120.112 2001:1458:d00:32::100:260 188.184.116.224 188.185.43.140 +2
2026-07-24 09:41:21.052
gitlab-pages-backend-dev.cern.ch
188.184.98.52 2001:1458:d00:61::100:209 2001:1458:d00:3a::100:364 2001:1458:d00:2d::100:467 +2
2026-07-24 00:57:54.709
gitlab-pdc.cern.ch
188.185.145.20 188.185.133.166 188.185.128.95 2001:1458:d03:1::100:ca +2
2026-06-01 14:21:44.811
gitlab-registry-dev.cern.ch
188.185.51.81 2001:1458:d00:3a::100:364 2001:1458:d00:2d::100:467 2001:1458:d00:61::100:209 +2
2026-07-24 00:57:54.709
hgcalfibermap.app.cern.ch
188.185.49.163 188.185.41.108 188.184.98.92 2001:1458:d00:24::100:2e1 +2
2026-06-16 20:10:30.102
hypernews.cern.ch
188.185.48.40 2001:1458:d00:25::100:1f8 2001:1458:d00:24::100:281 2001:1458:d00:61::100:103 +2
2026-06-03 21:41:11.104
invenio-talk.web.cern.ch
188.185.41.38 188.185.47.135 2001:1458:d00:24::100:28a 2001:1458:d00:61::100:5d3 +2
2026-07-24 03:12:47.996
inveniordm.docs.cern.ch
188.184.96.45 137.138.55.232 2001:1458:d00:39::100:130 2001:1458:d00:2c::100:32c +2
2026-07-24 03:12:47.996
inveniordm.web.cern.ch
188.185.42.119 188.185.46.121 2001:1458:d00:61::100:103 2001:1458:d00:25::100:1f8 +2
2026-07-24 03:12:47.996
keystone.cern.ch
188.184.21.228 2001:1458:d00:34::100:b5 2001:1458:d00:3b::100:2c2 2001:1458:d00:3f::100:15c +2
2026-07-27 08:31:52.430
lhcathome.web.cern.ch
188.185.51.218 137.138.52.182 188.185.43.245 2001:1458:d00:17::100:205 +2
2026-05-26 04:02:49.330
lhcb.web.cern.ch
188.184.111.229 137.138.55.232 188.184.96.45 2001:1458:d00:39::100:130 +2
2026-07-24 19:10:21.723
line-mode.cern.ch
188.185.48.40 2001:1458:d00:24::100:281 2001:1458:d00:25::100:1f8 2001:1458:d00:61::100:103 +2
2026-06-16 12:42:33.876
linux.web.cern.ch
188.185.48.40 2001:1458:d00:24::100:281 2001:1458:d00:25::100:1f8 188.185.46.121 +2
2026-07-28 17:34:09.807
mattermost.web.cern.ch
188.184.96.81 2001:1458:d00:61::100:397 2001:1458:d00:39::100:2e0 2001:1458:d00:3a::100:f0 +2
2026-07-26 08:02:32.921
monit-prom-lts.cern.ch
188.185.40.239 188.185.40.60 188.185.48.115 188.185.48.244 +2
2026-07-18 11:15:56.410
monit.cern.ch
137.138.55.232 2001:1458:d00:17::100:9e 2001:1458:d00:2c::100:32c 2001:1458:d00:39::100:130 +2
2026-05-27 14:49:12.821
na62.web.cern.ch
188.184.111.229 137.138.55.232 2001:1458:d00:39::100:130 2001:1458:d00:17::100:9e +2
2026-07-25 06:45:44.816
new-cds-project.docs.cern.ch
137.138.55.232 188.184.96.45 188.184.111.229 2001:1458:d00:17::100:9e +2
2026-05-27 06:31:58.948
opendata-forum.cern.ch
188.185.41.38 188.185.47.135 188.185.48.154 2001:1458:d00:24::100:28a +2
2026-06-18 09:35:06.119
opendata-qa.cern.ch
188.185.48.40 188.185.42.119 188.185.46.121 2001:1458:d00:24::100:281 +2
2026-06-21 04:43:06.971
os-alicecs.cern.ch
137.138.129.167 137.138.130.67 137.138.128.33 2001:1458:201:1c::100:18 +2
2026-05-26 10:48:48.499
os-alicecs2.cern.ch
137.138.129.167 137.138.128.33 137.138.130.67 2001:1458:201:1e::100:1e +2
2026-05-26 10:48:48.499
os-atlas.cern.ch
137.138.129.168 2001:1458:201:1c::100:16 2001:1458:201:1f::100:1d 2001:1458:201:1e::100:1f +2
2026-05-26 23:32:52.982
os-atlas2.cern.ch
137.138.129.168 2001:1458:201:1c::100:16 2001:1458:201:1e::100:1f 2001:1458:201:1f::100:1d +2
2026-05-26 23:32:52.982
os-cms.cern.ch
137.138.130.66 2001:1458:201:1e::100:3a 2001:1458:201:1f::100:3a 2001:1458:201:1c::100:1b +2
2026-05-27 11:54:09.352
os-cms1.cern.ch
137.138.130.66 2001:1458:201:1c::100:1b 2001:1458:201:1f::100:3a 2001:1458:201:1e::100:3a +2
2026-05-27 11:54:09.352
os-icsgpt.cern.ch
137.138.130.70 2001:1458:201:1f::100:3e 2001:1458:201:1c::100:15 2001:1458:201:1e::100:1b +2
2026-07-19 04:34:07.585
os-icsgpt1.cern.ch
137.138.128.30 2001:1458:201:1c::100:15 2001:1458:201:1e::100:1b 2001:1458:201:1f::100:3e +2
2026-07-19 04:34:07.585
os-lhcb-dirac.cern.ch
137.138.130.31 137.138.129.203 137.138.128.56 2001:1458:201:1f::100:17 +2
2026-07-26 09:45:40.174
os-lhcb-dirac2.cern.ch
137.138.128.56 137.138.129.203 137.138.130.31 2001:1458:201:1e::100:42 +2
2026-07-26 09:45:40.174
os-perfmon.cern.ch
137.138.130.62 2001:1458:201:1e::100:16 2001:1458:201:1c::100:41 2001:1458:201:1f::100:36 +2
2026-05-26 03:41:45.201
os-perfmon1.cern.ch
137.138.129.159 2001:1458:201:1c::100:41 2001:1458:201:1e::100:16 2001:1458:201:1f::100:36 +2
2026-05-26 03:41:45.201
os-plm.cern.ch
137.138.130.67 137.138.129.167 137.138.128.33 2001:1458:201:1f::100:3b +2
2026-05-26 10:48:48.499
os-plm1.cern.ch
137.138.130.67 137.138.128.33 137.138.129.167 2001:1458:201:1e::100:1e +2
2026-05-26 10:48:48.499
os-sis-monitoring.cern.ch
137.138.130.49 2001:1458:201:1f::100:29 2001:1458:201:1e::100:23 2001:1458:201:1c::100:35 +2
2026-06-18 14:34:10.399
os-sis-monitoring1.cern.ch
137.138.128.62 137.138.129.172 2001:1458:201:1f::100:29 2001:1458:201:1e::100:23 +2
2026-06-18 14:34:10.399
os-sis-vector.cern.ch
137.138.129.164 2001:1458:201:1c::100:15 2001:1458:201:1f::100:3e 2001:1458:201:1e::100:1b +2
2026-07-19 04:34:07.585
os-sis-vector1.cern.ch
137.138.130.70 2001:1458:201:1c::100:15 2001:1458:201:1e::100:1b 2001:1458:201:1f::100:3e +2
2026-07-19 04:34:07.585
pages-dev.cern.ch
188.184.98.52 2001:1458:d00:2d::100:467 2001:1458:d00:3a::100:364 2001:1458:d00:61::100:209 +2
2026-07-24 00:57:54.709
pensionfund.cern.ch
188.185.47.135 2001:1458:d00:24::100:28a 2001:1458:d00:61::100:5d3 2001:1458:d00:25::100:5c4 +2
2026-07-28 01:38:51.183
smcs-unosat.app.cern.ch
188.185.42.119 188.185.46.121 188.185.48.40 2001:1458:d00:61::100:103 +2
2026-06-19 12:18:00.250
test-redir-paas2.cern.ch
188.185.41.108 2001:1458:d00:24::100:2e1 2001:1458:d00:3a::100:20d 2001:1458:d00:61::100:48d +2
2026-07-26 14:44:39.795
twiki.cern.ch
188.184.78.57 2001:1458:d00:6f::100:28b 2001:1458:d00:6f::100:2c7 2001:1458:d00:6f::100:2ae +2
2026-07-26 08:02:32.921
videos.cern.ch
188.185.48.40 188.185.46.121 188.185.42.119 2001:1458:d00:61::100:103 +2
2026-05-27 06:31:58.948
webanalytics.web.cern.ch
188.185.48.40 2001:1458:d00:61::100:103 2001:1458:d00:25::100:1f8 2001:1458:d00:24::100:281 +2
2026-07-28 17:34:09.807
webservices-portal.web.cern.ch
188.185.48.40 2001:1458:d00:24::100:281 2001:1458:d00:61::100:103 2001:1458:d00:25::100:1f8 +2
2026-07-26 11:52:50.016
wlcg.web.cern.ch
188.185.51.218 2001:1458:d00:17::100:205 2001:1458:d00:24::100:53 2001:1458:d00:61::100:3f +2
2026-07-26 08:02:32.921
worldwideweb.cern.ch
188.185.46.121 2001:1458:d00:24::100:281 188.185.48.40 188.185.42.119 +2
2026-07-17 10:35:32.134
pypi-itdcim.cern.ch
188.184.78.196 188.184.79.40 188.184.78.73 188.184.66.159 +1
2026-06-01 01:15:40.218
api.drupal-stg.okd.cern.ch
137.138.153.154 188.185.45.61 2001:1458:d00:25::100:d 2001:1458:d00:13::100:3e2
2026-06-21 19:50:45.585
api.drupal.okd.cern.ch
188.185.40.183 137.138.159.226 2001:1458:d00:14::100:3ab 2001:1458:d00:24::100:1f8
2026-06-20 02:34:56.305
api.paas-pdc.okd.cern.ch
188.185.136.17 188.185.133.200 2001:1458:d03:3::100:15d 2001:1458:d03:2::100:3ea
2026-06-23 17:22:53.461
api.webeos-stg.okd.cern.ch
188.185.44.23 188.185.42.28 2001:1458:d00:24::100:29c 2001:1458:d00:25::100:5ca
2026-06-23 01:48:26.040
app-cat-stg.cern.ch
188.184.98.53 188.184.97.180 2001:1458:d00:39::100:2bd 2001:1458:d00:3a::100:78
2026-07-21 01:15:52.816
app-catalogue.cern.ch
188.184.96.113 188.185.46.27 2001:1458:d00:25::100:455 2001:1458:d00:39::100:65
2026-06-20 02:34:56.305
cernbox.cern.ch
188.185.200.39 137.138.120.151 188.184.19.133 128.142.53.28
2026-07-28 07:09:20.615
cms-cric-lb.cern.ch
188.185.86.114 188.184.94.115 2001:1458:d00:3f::100:1a2 2001:1458:201:e4::100:b
2026-05-27 06:31:58.948
cms-cric.cern.ch
188.184.94.115 188.185.86.114 2001:1458:201:e4::100:b 2001:1458:d00:3f::100:1a2
2026-05-27 06:31:58.948
confluence.cern.ch
137.138.152.192 2001:1458:d00:3a::100:434 2001:1458:d00:13::100:1d7 188.184.98.200
2026-07-31 02:23:46.063
drupal-stg.cern.ch
188.185.45.61 137.138.153.154 2001:1458:d00:13::100:3e2 2001:1458:d00:25::100:d
2026-07-21 06:54:34.791
drupal.cern.ch
137.138.159.226 188.185.40.183 2001:1458:d00:24::100:1f8 2001:1458:d00:14::100:3ab
2026-05-27 00:08:10.042
eduvpn.cern.ch
128.141.17.52 128.141.17.68 2001:1458:201:6::100:2 2001:1458:201:d::100:2
2026-06-19 14:32:43.375
framework.web.cern.ch
137.138.152.192 188.184.98.200 2001:1458:d00:13::100:1d7 2001:1458:d00:3a::100:434
2026-07-16 21:09:10.192
frontiermondev.cern.ch
188.184.31.81 2001:1458:d00:30::100:61 188.185.137.18 2001:1458:d03:3::100:1ba
2026-07-26 19:32:25.567
gitlab-dev-pdc.cern.ch
188.185.135.223 188.185.139.109 2001:1458:d03:2::100:7e 2001:1458:d03:3::100:8
2026-07-24 00:57:54.709
indico.cern.ch
188.185.77.15 2001:1458:d00:34::100:aa 2001:1458:d00:9::100:109 188.184.23.103
2026-07-27 20:07:00.564
lhcathome.cern.ch
188.184.75.179 2001:1458:d00:4e::100:73 188.184.93.91 2001:1458:201:e4::100:158
2026-07-24 00:48:30.253
maps.cern.ch
188.184.78.30 188.184.79.57 2001:1458:d00:6f::100:255 2001:1458:d00:6f::100:2b5
2026-05-27 01:53:31.573
monit-grafana-open.cern.ch
188.185.150.167 2001:1458:d03:6::100:98 2001:1458:d00:4e::100:64f 188.184.73.17
2026-07-27 22:09:31.292
os-io1-alias.cern.ch
188.184.106.80 137.138.124.186 188.185.49.79 188.185.45.224
2026-06-22 06:24:52.312
os-io1-cluster-alias.cern.ch
188.184.106.80 137.138.124.186 188.185.49.79 188.185.45.224
2026-06-18 19:50:24.427
os-io1-cluster.cern.ch
188.184.106.80 188.185.45.224 188.185.49.79 137.138.124.186
2026-06-18 19:50:24.427
os-io1.cern.ch
188.184.106.80 137.138.124.186 188.185.45.224 188.185.49.79
2026-06-22 06:24:52.312
paas-pdc.cern.ch
188.185.136.17 188.185.133.200 2001:1458:d03:2::100:3ea 2001:1458:d03:3::100:15d
2026-06-21 14:01:40.297
paas-stg.cern.ch
188.184.98.201 137.138.155.29 2001:1458:d00:3a::100:466 2001:1458:d00:13::100:32f
2026-07-21 01:15:52.816
paas.cern.ch
188.185.47.134 2001:1458:d00:24::100:462 188.185.41.91 2001:1458:d00:25::100:39f
2026-07-25 11:02:59.011
pandacache.cern.ch
188.184.107.190 2001:1458:d00:2d::100:3f9 2001:1458:d00:62::100:af 188.185.6.186
2026-07-21 00:38:37.564
s3-mu-website.cern.ch
188.185.138.101 188.184.103.136 2001:1458:d00:3b::100:13 2001:1458:d03:3::100:2c8
2026-07-26 11:12:24.617
s3-mu.cern.ch
188.184.103.136 188.185.138.101 2001:1458:d00:3b::100:13 2001:1458:d03:3::100:2c8
2026-07-26 11:12:24.617
sonarqube.cern.ch
188.185.7.31 2001:1458:d00:66::100:1d3 2001:1458:d00:62::100:1f 188.185.22.134
2026-07-31 02:23:46.063

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Domain timeline pending

Passive-DNS history accumulates as our forward-DNS crawler observes A/AAAA/MX/NS/TXT records over time.