dumont.de
Observed Jul 25, 2026, 03:45 UTC (8d 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
Also usesGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat dumont.de actually stands on - every host below is a signed observation
dumont.de
A / AAAA
91.107.239.148
unattributedserves the site
NS
ns.udag.dens.udag.netns.udag.org
udag.de + udag.net + moreanswers its DNS
MX
mail1.mds.demail2.mds.demail.mds.de
mds.dereceives its email
TLS
dumont.de
Let's Encryptissued its certificate
DNS Records
A 1
91.107.239.148
MX 3
10mail1.mds.de10mail2.mds.de10mail.mds.de
TXT 12
google-site-verification=BSqKbrbbRHRDULgPeq5DK7v913zVUlv1bmt0HqFIx4gapple-domain-verification=cLRocnEatvKgdUM3swisssign-check=oFHYKJckbjialxv3zDlK7cBGwgg_globalsign-domain-verification=a6vtClpSnhtilC7kKWN5_z05oTKf7cJrlJly1U1O6Ogoogle-site-verification=wDGkUcM5h2eaBRpbYK50KJ9h4EEVo6jFi8f8GAP5_xAMS=ms94203028extensis-domain-verification=0eec3728-be9c-4002-ad90-9065bead5ae1v=spf1 mx ip4:81.173.214.0/24 ip4:130.180.4.118 ip4:134.119.225.33 ip4:194.195.3.64/27 ip4:78.35.144.232 a:c.spf.service-now.com include:spf.mailjet.com include:spf.agnitas.de include:spf.nl2go.com include:_spf.zimpel.de include:spf.crsend.com -allmindmanager-verification=0921dbeb56d02cd8d43d8c5d43c535a0813473449bcf46e94be3954ad2f4d714BV2S5gf8yddL0Z8dZJeXIqYrSuASwNAyR+QSIoGNygcRUbtjddxqqf3RjwZfeb7TDzbRbOs5oAj8G0uC3OH1kA==
NS 3
ns.udag.dens.udag.netns.udag.org
SOA 1
ns.udag.de hostmaster.united-domains.de
SRV 1
autodiscover.dumont.de:443 p0
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
dumont.de |
C=US, O=Let's Encrypt, CN=YR1 | Tue, 13 Oct 2026 02:06:33 +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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_d90d70d16ac208bd- Output Hash
6606af89e3857cd42258c1a1b132e74068a0e013c3fb8ed19968af0fcbe54a8e- Signature
ed25519:c6f65b83ce53f9407a386483264de3ee4e00f0a99338348a6b26a71b1473e0888d8f60214608da59c7767155eb09968e969504395755115588f0b2ec30a0e90a- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast