home.cern
Observed Jul 18, 2026, 13:10 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCERN - European Organization for Nuclear Research
Secured bySectigo
Registered withCSC Corporate Domains, Inc.
IPv6 · 1 subdomain · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat home.cern actually stands on - every host below is a signed observation
home.cern
A / AAAA
188.184.76.402001:1458:d00:3c::100:1ff
CERN - European Organization for Nuclear Researchserves the site
NS
ext-dns-1.cern.chext-dns-2.cern.ch
cern.chanswers its DNS
TLS
www.cern.ch
Sectigo Limitedissued its certificate
DNS Records
A 1
188.184.76.40
AAAA 1
2001:1458:d00:3c::100:1ff
NS 2
ext-dns-1.cern.chext-dns-2.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
67cf1608-77c7-4a58-813f-4da035bdd883- Output Hash
80af68e70d7019ae71816a5ceeb749e71cb5643873ac39bafdda917fef89ce07- Signature
ed25519:b7759c59791a837b8f197efe2431a7cc64919b584155e6fa55d32a796103d5979aaf0c63b7670f8e09e7882675ff63913be2935cfdcadfa4e0c67295c2109605- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast