web4u.cz
Observed 2026-06-14T19:26:53.174Z (22h ago). Every field below was attested with an Ed25519 signature at scan time.
Don't trust this page — check the math. Verification runs entirely in your browser. Nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
bf140d41-ca37-4af6-9e62-6353af1abda2- Output Hash
ec11db4ec3f6a077b2aae394c226d22c101b41dd536d2b0d9c82ad0c1546281d- Signature
ed25519:7166d6200bdd893890e2c08a54e36ad61589a4f0a381f734db846781a3dc4c869a5eea0b902bd2c5570d36a09480f5006173a4c5fa25d017f24c2a6d7eae6e03- Public Key
ed25519:1aafb422ddb6beba51f7cabe4ce1c400d51da23b2ec829bd74c9f89bb99801da- Parent
(genesis)- Plane
- fast
DNS Records
A 1
81.91.86.19
AAAA 1
2001:1568::19
MX 1
{"priority":10,"exchange":"mx.web4u.cz"}
TXT 7
MS=0394720CC11BB6E64FFED5064A40D0401C20807Esmv=9d9c9b062c03b840zoho-verification=zb27107936.zmverify.zoho.euv=spf1 ip4:81.91.87.150 ip4:81.91.87.80 ip4:81.91.87.60 ip4:81.91.87.250 ip4:81.91.87.34/31 ip4:81.91.87.249 ip4:81.91.87.236 ip6:2001:1568:502:1::/64 ip6:2001:1568:502:2::/64 ip6:2001:1568:502:3::/64 ip6:2001:1568::7060 ip6:2001:1568::7236 ip4:77.78.104.121 ip6:2001:1528:137::a include:_spf.jupiter.salesmanago.pl -allv=DMARC1;p=reject;sp=none;pct=100;adkim=s;aspf=r;rua=mailto:dmarc@web4u.cz;ruf=mailto:ruf@web4u.czv=DKIM1; (detected)v=DNSSEC1; (detected)
NS 2
ns.web4u.czns2.web4u.cz
SOA 1
{"mname":"ns.web4u.cz","rname":"admin.web4u.cz","serial":2026061100}
CAA 1
{"flags":0,"tag":"issue","value":"letsencrypt.org"}
TLS Certificates (0)
None.