atlas.cern
Observed Jul 24, 2026, 04:11 UTC (18h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Up right now
Secured bySectigo
IPv6 · 1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat atlas.cern actually stands on - every host below is a signed observation
atlas.cern
A / AAAA
188.184.76.1462001:1458:d00:3c::100:d7
2001serves the site
NS
ext-dns-2.cern.chext-dns-1.cern.ch
cern.chanswers its DNS
TLS
www.cern.ch
Sectigo Limitedissued its certificate
DNS Records
A 1
188.184.76.146
AAAA 1
2001:1458:d00:3c::100:d7
NS 2
ext-dns-2.cern.chext-dns-1.cern.ch
SOA 1
ext-dns-1.cern.ch external-dns.cern.ch
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.cern.ch |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA OV R36 | Tue, 24 Nov 2026 23:59:59 +0000 |
Sectigo Public Server Authentication CA OV R36 |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 | Fri, 21 Mar 2036 23:59:59 +0000 |
Sectigo Public Server Authentication Root R46 |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 18 Jan 2038 23:59:59 +0000 |
Subdomains (1)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_ac0e388c8279ea93- Output Hash
c6efe5ead21750a0dabbc3f388576775249c3447693c41a73f8f5c900aa52a98- Signature
ed25519:4b0bf5f4bc01b83ab33087c8f4617692fff730631a4c45139f908fe36723e5707f6a4df284dfa83d349a53c2822e74f267270a40f0f84ff096b7ec2c06960e0d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast