vandercook.edu
Observed Aug 2, 2026, 19:29 UTC (11h 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 onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Also usesHubSpot
majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat vandercook.edu actually stands on - every host below is a signed observation
vandercook.edu
A / AAAA
141.193.213.20141.193.213.21
Cloudflareserves the site
NS
dns1.p02.nsone.netdns2.p02.nsone.netdns3.p02.nsone.netdns4.p02.nsone.net
nsone.netanswers its DNS
MX
alt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
vandercook.edu
Google Trust Servicesissued its certificate
DNS Records
A 2
141.193.213.20141.193.213.21
MX 5
5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com1aspmx.l.google.com10aspmx2.googlemail.com10aspmx3.googlemail.com
TXT 2
MS=B3D530024937EA7161E1806AF93345998B8863B7v=spf1 ip4:192.41.245.78 include:_spf.google.com include:7851903.spf08.hubspotemail.net include:sendgrid.net include:spf.hosting.americaneagle.com ip4:35.231.106.246 ip4:141.193.213.20 ip4:141.193.213.21 ~all
NS 4
dns1.p02.nsone.netdns2.p02.nsone.netdns3.p02.nsone.netdns4.p02.nsone.net
SOA 1
dns1.p02.nsone.net hostmaster.nsone.net
DMARC_RECORDS 1
v=DMARC1; p=none
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
vandercook.edu |
C=US, O=Google Trust Services, CN=WE1 | Mon, 14 Sep 2026 09:04:58 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +0000 |
Subdomains (0)
None observed.
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_e1a79e8a631e8999- Output Hash
d3368f56e584e6f26b720b677ad4017e9eb4c18e37cd00d064035ff06bb0cd18- Signature
ed25519:915ea4c2960bce2277f4c8b9b83c2ed68b37c84ce4e84753208ece6c79151d21a3ae835f32af10245fa500cd5f02c5a453c3c913b7daa03f1c86afe4e4332a05- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast