viessmann.cz
Observed Jul 26, 2026, 09:05 UTC (7d 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
Email byProofpoint
Secured byLet's Encrypt
Also usesFacebook/MetaGoogle Search Console
majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat viessmann.cz actually stands on - every host below is a signed observation
viessmann.cz
A / AAAA
93.122.86.52
unattributedserves the site
NS
b.ns14.netc.ns14.netd.ns14.neta.ns14.net
ns14.netanswers its DNS
MX
mxa-0065c301.gslb.pphosted.commxb-0065c301.gslb.pphosted.com
Proofpointreceives its email
TLS
viessmann.cz
Let's Encryptissued its certificate
DNS Records
A 1
93.122.86.52
MX 2
10mxa-0065c301.gslb.pphosted.com10mxb-0065c301.gslb.pphosted.com
TXT 8
MS=ms4584744300D58000000HYrR=1TBSd00000002xygoogle-site-verification=d8XY_XriNalElYYIMWFlDCXnjpCWLwcKYI3k8daBLHQv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.mailjet.com -allgoogle-site-verification=Xbbg5OsGKODa8-QPhRleSzI4E6TCvWRVAwZYqYN-EuYgoogle-site-verification=25Puz7GliZbuRk746OpBqsiKEpFIF0T3awxIRYeWq6kfacebook-domain-verification=c8zpcmjvxc0gg26gdpecqnoib3oryzv=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;
NS 4
b.ns14.netc.ns14.netd.ns14.neta.ns14.net
SOA 1
a.ns14.net do-not-reply.viessmann.cz
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
viessmann.cz |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 21 Sep 2026 20:57:49 +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_46a90f7659058e8e- Output Hash
815dbda9a8009d2751f3afc66dade12ad9b0be8f2dd50321a05325eca244ed8f- Signature
ed25519:59b05099f5087248a279c35e514a7ce1a6b10d5cfdd8ea8e4a3a3a85af8c2e85ddbe7243efdb057428fa3b5612f63ac16210d90c1620d0b0169fe01db3da7805- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast