itu.ch
Observed Jul 18, 2026, 13:06 UTC (8h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onInternational Telecommunication Union
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesGoogle Search ConsoleAtlassian
IPv6 · 2 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat itu.ch actually stands on - every host below is a signed observation
itu.ch
A / AAAA
156.106.253.2502a00:7580:60:a252::3250
International Telecommunication Unionserves the site
NS
ns7.itu.chns3.itu.chns8.itu.chns5.itu.ch+3 more
itu.chanswers its DNS
MX
itu-ch.mail.protection.outlook.com
Microsoft 365receives its email
TLS
itu.int
Let's Encryptissued its certificate
DNS Records
A 1
156.106.253.250
AAAA 1
2a00:7580:60:a252::3250
MX 1
28itu-ch.mail.protection.outlook.com
TXT 13
adobe-idp-site-verification=45cc586968520745b7c4a80da26402a4e93b36523cb57fe997f15d0104ab55c8google-site-verification=KnjD3vfQw6QzV-Tdi1DYB-vruU1LRfcoZa3hpu_6DmwMS=ms10801744cisco-ci-domain-verification=65b81f5e5cbb148bc6ecf3dbbe8a12c57a775321fb55e5b19be6595c0a1c06d0v=spf1 ip4:156.106.192.20/30 ip4:156.106.192.38/31 include:spf.protection.outlook.com -allapple-domain-verification=8k1jFouBaGXq2Vu4google-site-verification=Mt2O1S2bdYkwzokESyNQlj-W_krcAAnJpKXW8YQBPZMgoogle-site-verification=OAL7V9LOPx_KZ3pTK2B89gxf9-tpX4SuWsujyfFxo5Mmentimeter-bb606de2-ad90-431c-b513-af27acaf0fc1google-site-verification=H4hEnSrSL9A-LU_zr1GB86qJ9TNwO5QQ62yVPDGxtQU
NS 7
ns7.itu.chns3.itu.chns8.itu.chns5.itu.chns2.itu.chns6.itu.chns.itu.ch
SOA 1
ns.itu.ch hostmaster.itu.ch
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
itu.int |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 09 Sep 2026 00:50:38 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (2)
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
6d6613fb-a8eb-4257-b515-5c2e7ecf9881- Output Hash
d3c116778d5612dd7901c1f5cb50a9c16589a1b6dcd7bb7e7171b7b3611332fb- Signature
ed25519:e7f75046e22865a81ac6dddfaf78dfa5956c14e9b211bed0baef7b870080a80cca2d801d7feffee8180b03b4a69694b9b831ec6b5538f7c841f108cf057c8b0f- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast