vierkant.dev
Observed Aug 2, 2026, 10:57 UTC (12h 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 vierkant.dev actually stands on - every host below is a signed observation
vierkant.dev
A / AAAA
136.243.40.201
unattributedserves the site
NS
ns1.vierkant.devns2.vierkant.dev
vierkant.devanswers its DNS
TLS
vierkant.dev
Let's Encryptissued its certificate
DNS Records
A 1
136.243.40.201
NS 2
ns1.vierkant.devns2.vierkant.dev
SOA 1
ns1.vierkant.dev admin.vierkant-software.eu
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
vierkant.dev |
C=US, O=Let's Encrypt, CN=YE1 | Tue, 22 Sep 2026 15:20:27 +0000 |
YE1 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
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_740a3128d2ff3782- Output Hash
6c54a0e2fdabda0b06f90e9ec435dad78fb928150a92f614e91650997fd63da4- Signature
ed25519:bf3125bfc1522825627c01f2a087e36315e238231b571305c7c2ce6980319825a92e40d76e751f861343494a6dcc87ead2a0356c79a2f848340a0f8b6802a80d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast