jazzahead.de
Observed Aug 16, 2026, 06:40 UTC (9h 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 bySendGrid
Secured byLet's Encrypt
Let's EncryptAlso usesMicrosoft 365
Microsoft 3651 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jazzahead.de actually stands on - every host below is a signed observation
jazzahead.de
A / AAAA
188.245.51.51
unattributedserves the site
NS
ns05.vege.netns1.y4i.de
vege.net + y4i.deanswers its DNS
MX
mail.m3b-bremen.de
SendGridreceives its email
TLS
live.m3b-bremen.de
Let's Encryptissued its certificate
DNS Records
A 1
188.245.51.51
MX 1
10mail.m3b-bremen.de
TXT 2
v=spf1 a mx a:mail2.wfb-bremen.de ip4:82.198.215.0/24 ip4:82.198.214.0/24 ip4:176.9.15.244 ip4:188.245.51.51 ip4:5.9.102.242 ip4:5.9.108.214 ip4:46.252.18.239 ip4:54.246.220.150 ip4:54.246.224.90 a:smtp.sendgrid.net include:vege.net include:spf.protection.outlook.com -allMS=ms23069540
NS 2
ns05.vege.netns1.y4i.de
SOA 1
ns05.vege.net root.ns05.vege.net
DMARC_RECORDS 1
v=DMARC1;p=none;pct=100;rua=mailto:security@jazzahead.de;ruf=mailto:security@jazzahead.de;ri=86400;aspf=s;adkim=s;fo=0:1;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
live.m3b-bremen.de |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 04 Nov 2026 10:04:20 +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 (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_70d529663564881f- Output Hash
e65edee95fb67f1916a07ec41b80878aa6798c80b5c6c89ee73dae7100148162- Signature
ed25519:883cc7a82569bb3e2d3bff3dd53559e64ad94d91af321aa577b5b3636480a51008d0d4a3eeed89160ab81174baa526f5e68f2af57baeaccfbb864f27561ab30c- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast