chop.edu

Observed Jul 18, 2026, 13:06 UTC (9h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onFastly

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesDocuSignAtlassian

IPv6 · 5 subdomains · tranco_20k

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

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

chop.edu

A / AAAA

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

Fastlyserves the site

extdns1.chop.eduze2plecns001.chop.eduextdns2.chop.eduextdns3.chop.edu+1 more

chop.eduanswers its DNS

chop-edu.mail.protection.outlook.com

Microsoft 365receives its email

TLS

chop.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

10chop-edu.mail.protection.outlook.com

TXT 23

hcp-domain-verification=2903e6258474d07b5760cd6962a1a927a2f45fe459730da583fcd2af545d4acc
00DDF00000XRCOG=1TBDF0000004CA;00Dj0000001omsQ=1TBKi000000blKM
v=spf1 include:_u.chop.edu._spf.smart.ondmarc.com include:spf.protection.outlook.com -all
854e6ab1-dba5-45d4-9f66-24805682df0f
cisco-ci-domain-verification=4204fca293f1aa4ea778951076f37654ec285dfbc6fbe1f64bc9a599efa13b01
docusign=3738c455-4a3d-4699-997a-48b9717efdfe
/XGPSCHC7I0HKtJiWo6BSGltoGFtJiqqKhRll2iV/aq08dUPOr1VONoI4qPmkljEzHE4nkRbhDHEiFIk91eMAA==
6BKWMdNTxKezm6vZ8EQa5uA8Ljsz0sC8zfcHzLR6NBadZC/CZ50CXwdzpiH4458hBK8T/xXCnHz0Icd49hgkdg==
434A-D677-CC9F-8ABA-0258-EC99-9282-844A
MS=ms22618234

NS 5

extdns1.chop.edu
ze2plecns001.chop.edu
extdns2.chop.edu
extdns3.chop.edu
zcnplecns001.chop.edu

SOA 1

extdns1.chop.edu hayess.email.chop.edu

SRV 4

cntmraexpevf1.chop.edu:5060 p10
cntmraexpetp1.chop.edu:5060 p10
cntmraexpevf1.chop.edu:5061 p10
cntmraexpetp1.chop.edu:5061 p10

TLS Certificates (3)

Common Name	Issuer	Expires
`chop.edu`	C=US, O=Let's Encrypt, CN=YR1	Sun, 13 Sep 2026 19:13:45 +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 (5)

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 chop.edu. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: d094b969-429a-4080-aac0-0241d47ba300
Output Hash: 5452b5195fb7d9923a35529d9a2052f981526cd5d21a93acfec61e0738887baf
Signature: ed25519:1927a4f398eed00342cbc6d8c249c4f0cf3980b29debf5d932cab150ae9a9938a21a2f05bd3d8ba99ca4f3b3275e11c2dfa6b5a35a45ea660f211fd1306b5d07
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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