zero-k.info
Observed Aug 2, 2026, 09:49 UTC (2h 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 byLet's Encrypt
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zero-k.info actually stands on - every host below is a signed observation
zero-k.info
A / AAAA
149.56.22.68
unattributedserves the site
NS
ns.web4u.czns2.web4u.cz
web4u.czanswers its DNS
MX
zero-k.info
zero-k.inforeceives its email
TLS
zero-k.info
Let's Encryptissued its certificate
DNS Records
A 1
149.56.22.68
MX 1
10zero-k.info
TXT 1
v=spf1 ip4:149.56.22.68 -all
NS 2
ns.web4u.czns2.web4u.cz
SOA 1
ns.web4u.cz admin.web4u.cz
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
zero-k.info |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 09 Sep 2026 17:40:27 +0000 |
YR1 |
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 (0)
None observed.
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_2074ca861c37cbfc- Output Hash
c28645ff1614291412ca9b89d7fb5f04e5525a8904466f58b4dc393d29c5c490- Signature
ed25519:440193e30cfb571976ede88d9dc68aa4da54da1b9d7aacb025327ad6714ab862687e12334aff9fdd482b098eb870ac66452b6b6f43327b9d0fb56a50f83cac04- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast