rpi.edu

Observed Jul 18, 2026, 12:09 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onFastly

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · 4 subdomains · education_expanded

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat rpi.edu actually stands on - every host below is a signed observation

rpi.edu

A / AAAA

23.185.0.32620:12a:8001::32620:12a:8000::3

Fastlyserves the site

dns11.rpi.edudns3.rpi.edudns2.rpi.edu

rpi.eduanswers its DNS

mail.rpi.edu

rpi.edureceives its email

TLS

rensselaer.edu

Let's Encryptissued its certificate

DNS Records

A 1

23.185.0.3

AAAA 2

2620:12a:8001::3
2620:12a:8000::3

MX 1

1mail.rpi.edu

TXT 19

42E5E711E86CB0F6FC35672C5920A3D8
smartsheet-site-validation=zVnG5_eYRtqMKCyoGPb7m2BsQhR9qHMs
google-site-verification=-F7MdHVAGhjx_VyONSJfPwSCxoac1YYKe4JHD55PGHQ
abuseipdb-verification=fsZcG391
openai-domain-verification=dv-B3JOUs2DCTFCLMTKbnLTYsuV
v=spf1 ip4:128.113.1.200/29 ip4:128.113.1.208 ip4:128.113.26.109 ip4:159.112.250.171 include:spf.protection.outlook.com -all
;;;;;v=spf1 ip4:128.113.1.200/29 ip4:128.113.1.208 ip4:128.113.26.109 ip4:159.112.250.171 -all
F0472EB1EF6CB354E3B704AD04EC28CF
A9140ED1C4EBAFF89C070B8BB1702560
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDiQDOpEjcaKLrR1/ppMLxbvkuWcZGnghzy81W02qAfvkcznzal6J1Kcjax32XEvC9T5xerWBlXdJsBBkJJN9H+/KwBksrfFLr5xhIk50zrB3NxM9vkw1bHE15I37HymjiPtGf+mjXx0/t3/Fd5EFQrGQBwdlA22vMPJ9kXhww+7QIDAQAB

NS 3

dns11.rpi.edu
dns3.rpi.edu
dns2.rpi.edu

SOA 1

dns2.rpi.edu hostmaster.rpi.edu

SRV 2

cup.voip.rpi.edu:5222 p0
cup.voip.rpi.edu:5269 p0

TLS Certificates (2)

Common Name	Issuer	Expires
`rensselaer.edu`	C=US, O=Let's Encrypt, CN=R13	Fri, 21 Aug 2026 18:29:03 +0000
`R13`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Fri, 12 Mar 2027 23:59:59 +0000

Subdomains (4)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for rpi.edu. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/rpi.edu">
  <img src="https://domaindrift.io/badge/rpi.edu.svg"
       width="300" height="64" alt="DomainDrift signed observations for rpi.edu">
</a>

Ed25519 Receipt

Receipt ID: 492852d3-fc43-4143-8564-3817c712a1bf
Output Hash: 72128caacdfaea7873c650427af53d7260f5df86d44ace987f338ba2cb57d6f9
Signature: ed25519:6c580981851077723e726402a23b1f5d0236e2cb575c276b7074656239606c067f6ad1103de469d67dd8bc8a0b8e05fa065388244a96aec6e36dcc130f81b809
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/rpi.edu