roaldhoffmann.com
Observed Jul 26, 2026, 06:19 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
Secured byLet's Encrypt
IPv6 · 1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat roaldhoffmann.com actually stands on - every host below is a signed observation
roaldhoffmann.com
A / AAAA
23.185.0.12620:12a:8000::12620:12a:8001::1
2620serves the site
NS
ns6.esosoft.netns5.esosoft.netns7.esosoft.net
esosoft.netanswers its DNS
MX
mx.roaldhoffmann.com
roaldhoffmann.comreceives its email
TLS
roaldhoffmann.com
Let's Encryptissued its certificate
DNS Records
A 1
23.185.0.1
AAAA 2
2620:12a:8000::12620:12a:8001::1
MX 1
10mx.roaldhoffmann.com
TXT 2
v=spf1 include:spf.esosoft.net -allv=DMARC1; p=reject;
NS 3
ns6.esosoft.netns5.esosoft.netns7.esosoft.net
SOA 1
ns5.esosoft.net hostmaster.esosoft.net
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
roaldhoffmann.com |
C=US, O=Let's Encrypt, CN=YR1 | Tue, 29 Sep 2026 03:52:52 +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_026434a1e4bec30a- Output Hash
ac9baa31479418093442715b87737425f4d1f9da0ec02d2bbbaae111b9e8ea0c- Signature
ed25519:b8dcfbcf759b94df588ef29e1b53f39932024cc16ad9d1a5053b69bc772fe81ed2ecc4f76faf9fe23d719caec2571f5de82fd6235c06999ef98ae4ccb97b530a- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast