arc2020.eu
Observed Jul 23, 2026, 05:12 UTC (2d 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
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat arc2020.eu actually stands on - every host below is a signed observation
arc2020.eu
A / AAAA
193.19.92.130
unattributedserves the site
NS
ns4.alldomains.hostingns3.alldomains.hostingns1.alldomains.hostingns2.alldomains.hosting
alldomains.hostinganswers its DNS
MX
mail.arc2020.eu
arc2020.eureceives its email
TLS
www.arc2020.eu
Let's Encryptissued its certificate
DNS Records
A 1
193.19.92.130
MX 1
10mail.arc2020.eu
TXT 1
v=DMARC1; p=none;
NS 4
ns4.alldomains.hostingns3.alldomains.hostingns1.alldomains.hostingns2.alldomains.hosting
SOA 1
ns1.alldomains.hosting support.alldomains.hosting
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
www.arc2020.eu |
C=US, O=Let's Encrypt, CN=YE1 | Tue, 29 Sep 2026 02:04:01 +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 (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_87a4fd5dcc67a12c- Output Hash
f8dfa0d9aa07d7ec502d4dbf20faa685686452139f46f3dba0b549a03d73fef1- Signature
ed25519:725bea3631d6e96dd55790d4866edfd5647d8e08f73f51b6a82c99f8dfd360f2588423ec110831f9c73f936de72610bce9064e14e846dd5f8d6d50c68bbe4507- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast