sanderblue.com
Observed Aug 16, 2026, 07:55 UTC (1h 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 byGoogle Workspace
Google WorkspaceSecured byLet's Encrypt
Let's Encrypt1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat sanderblue.com actually stands on - every host below is a signed observation
sanderblue.com
A / AAAA
64.23.155.87
unattributedserves the site
NS
ns2.digitalocean.comns1.digitalocean.comns3.digitalocean.com
digitalocean.comanswers its DNS
MX
aspmx.l.google.comalt4.aspmx.l.google.comalt2.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
sanderblue.com
Let's Encryptissued its certificate
DNS Records
A 1
64.23.155.87
MX 5
1aspmx.l.google.com10alt4.aspmx.l.google.com5alt2.aspmx.l.google.com5alt1.aspmx.l.google.com10alt3.aspmx.l.google.com
NS 3
ns2.digitalocean.comns1.digitalocean.comns3.digitalocean.com
SOA 1
ns1.digitalocean.com hostmaster.sanderblue.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
sanderblue.com |
C=US, O=Let's Encrypt, CN=YE2 | Tue, 29 Sep 2026 21:29:53 +0000 |
YE2 |
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_31e85cfadfed55e5- Output Hash
b07de41be592fe8c65cf6e9cf737a1780f80caaaa8378b7b655d953572bdcad7- Signature
ed25519:4c994d4828befb2b1bbe8db112152991f1b29b21b03f1adf49358b447d2a806111e52fc739343bd1f39963277d62200ebf07cc1c7d377e7b37f3ccdd74609909- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast