bft-online.de
Observed Aug 16, 2026, 07:23 UTC (10h 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
Runs onNeue Medien Muennich
Email byMicrosoft 365
Microsoft 365Secured byLet's Encrypt
Let's Encrypt1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat bft-online.de actually stands on - every host below is a signed observation
bft-online.de
A / AAAA
85.13.130.104
Neue Medien Muennichserves the site
NS
ns81.domaincontrol.comns82.domaincontrol.com
domaincontrol.comanswers its DNS
MX
bftonline-de0i.mail.protection.outlook.com
Microsoft 365receives its email
TLS
bft-online.de
Let's Encryptissued its certificate
DNS Records
A 1
85.13.130.104
MX 1
100bftonline-de0i.mail.protection.outlook.com
TXT 3
ooiaf7423pfn1mnf4fktepvv53v=spf1 mx a include:ispgateway.de include:spf.protection.outlook.com include:spf.crsend.com -allMS=ms65757711
NS 2
ns81.domaincontrol.comns82.domaincontrol.com
SOA 1
ns81.domaincontrol.com dns.jomax.net
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
bft-online.de |
C=US, O=Let's Encrypt, CN=YE1 | Wed, 23 Sep 2026 21:54:51 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_94a5926af6d01d9c- Output Hash
4ff5203bb74f50f8d52e6b5d5c9492e33815c8469f0c3d2bef8e367c46edfa85- Signature
ed25519:15b7b63fa1981840702641f078f240704d2bb2cc00f39c5408331cb128e12e626c1dfa6d8cc0783c0f5eb55f02678b39af3cc60e943ef7df9eb0072465a0b90f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast