grinnell.edu
Observed Jul 21, 2026, 19:41 UTC (19h 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 onGrinnell College
Email byProofpoint
Secured byInternet2
Also usesFacebook/MetaDocuSignGoogle Search ConsoleZoom
push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat grinnell.edu actually stands on - every host below is a signed observation
grinnell.edu
A / AAAA
132.161.157.120
Grinnell Collegeserves the site
NS
ns3.grinnell.eduns1.netins.net
grinnell.edu + netins.netanswers its DNS
MX
mxa-001c8a01.gslb.pphosted.commxb-001c8a01.gslb.pphosted.com
Proofpointreceives its email
TLS
grinnell.edu
Internet2issued its certificate
DNS Records
A 1
132.161.157.120
MX 2
10mxa-001c8a01.gslb.pphosted.com10mxb-001c8a01.gslb.pphosted.com
TXT 22
xx9wg0wwvj5bs2t764jqh7kw590pflwdadobe-idp-site-verification=9ee0a16d32655fecb5241f1dbefe817b4c26d5e4c6ea9473569dab730bfdbb6800D6g000000D5IV=1TBNu0000000CE569K2BV9d38UJ9RtgXyVpdazrW4RvwFgea+Zm4eHVoh6p85d88d/g7jjdgVqDAOag6tI5ec6EAFtmMnURLW/B6g==8FC631DEA3A5A357B2D0A19F22144909facebook-domain-verification=0gv73hgnuopw76zo2sb04v87n8qgd692754436EF0FAF37C4B260E8B2D52EB5289AFAE3apple-domain-verification=y4Irun78dKl8OPUz7v8358rvpg337c1ps55qprfh9xg6hz7zdocusign=fca67405-e72a-429e-863e-b8510fdef99e
NS 2
ns3.grinnell.eduns1.netins.net
SOA 1
ns3.grinnell.edu noc.grinnell.edu
SRV 5
expy-e.grinnell.edu:5060 p10expy-e.grinnell.edu:5061 p10conference-3-StandAloneClusterab47b.grinnell.edu:5269 p10conference-2-StandAloneClusterab47b.grinnell.edu:5269 p10expy-e.grinnell.edu:5269 p10
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
grinnell.edu |
C=US, O=Internet2, CN=InCommon RSA Server CA 2 | Wed, 07 Oct 2026 23:59:59 +0000 |
InCommon RSA Server CA 2 |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 15 Nov 2032 23:59:59 +0000 |
USERTrust RSA Certification Authority |
C=GB, ST=Greater Manchester, L=Salford, O=Comodo CA Limited, CN=AAA Certificate Services | Sun, 31 Dec 2028 23:59:59 +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_0c927ae801b63147- Output Hash
c8a20e918edac0053881178d885f86f65cef623580c34a3c6d8c16db7e73e3c8- Signature
ed25519:d53ba2b90020590981d293cb7a71bd38cdac4a2545d283fe84c49321098c4ada59daf67773bf660e1894d3a69cc6aedba90026f2f70ed70160542b6f47e9cb0b- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast