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74
Total
70
DNS
90
Email
65
Security
20
Network
100
Availability
Domainpurdue.edu
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Purdue University

purdue.edu

Purdue University is a world-renowned, public research university that advances discoveries in science, technology, engineering and math.

Generated: 2026-08-08T18:42:50-05:00 · Cached result

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IPv41
IPv60
MX1
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

3 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

!
DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

✓
DMARC25 / 25 pts · Mail

DMARC policy published.

✓
DKIM20 / 20 pts · Mail

A DKIM selector was verified.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

173 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

!
HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

!
IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/1.1 200 OK

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
128.210.7.200

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
0 purdue-edu.mail.protection.outlook.com.

TXT

27 record(s)
"google-site-verification=en6dTnGVvW0yFBlNPxKv5aSBsJNG9XTRlJLx5xzkEGE"
"jamf-site-verification=VaeBGvW_vGEVdXlQmlspfQ"
"8c707d78-2dc6-4bac-b4f9-4f2ff625f327"
"MS=6F64A1C5D9A24164AA0A7E59CC8C1E7758DE8E88"
"atlassian-domain-verification=YwCJ4gAdGrIy4Trr5Fq2mBW41Vo4HOdkqNXNFssajAgT0sPIhkb7hiXXG8gCVzrz"
"n98pbk2retfsg11ronqr8158mu"
"00D3h000007QZV0=1TBVR00000009BN"
"apple-domain-verification=PR5U9BqX66R0APG8"
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all"
"airtable-verification=532cf661a9f1ce7337e69babb11917de"
"coursera-domain-verification=7YtVTrT8qPN5I6TM4j0JTlG1J8oUVTHHIirDRrvnyBZsqTD5suAZAxEC9V71BoAL"
"1B5A432253C00589C3C303313C798F60"
"bw=ukH9x7TrdldFT0SuYfXZ8aOBpFT8H6VI3GtpDr5RdXfU"
"_globalsign-domain-verification=LBGN_PGPzs-K_ugvlmQc5pBRof3QCVximyhc9hNKsU"
"998371A6F52AFE55605E99B34E3987A1"
"brevo-code:231c553f8bfc20a63e4de939455f5991"
"airtable-verification=b01c1d3515c017805e817e21360a0506"
"canva-site-verification=_ZOGZ-ChIB3VnGbHx8zCLg"
"atlassian-domain-verification=rwaaUqSzGwq84NSUvMqT86CCHDKF7TMyoaPiQVgP6sQUY3/aeaNsTmHVDEBNmFQ9"
"webexdomainverification.GDSP=4bd98732-2799-47d1-bbd3-66e6149d1cad"
"00DE0000000bl8X=1TBRd00000009GD"
"facebook-domain-verification=izc7cwx7c6ynlbzt3bvcasz2natro9"
"adobe-idp-site-verification=82aaf4b4-e1ab-4a7d-bea2-10f5820faec9"
"#^0zq4LIZZq&CRglVz*@h6QFrQYfE%r9YPjtMugJ!pfYMDS%Y&PYMB0@TDM@R%fbcn#ZZZDfrpH2qO#@1CW2rhspOp8HVd0IU7l"
"cisco-ci-domain-verification=5e16bdfb5c92c6d57a381bafa4689d833ce3fed29b3c973bfaba11f146732613"
"oysmqwNak8YGUW3sLWwJg1feIr+RzjS3GAjdI6bSHjLGftS6HmMqoAUagGXLrjogVk4ptcEPz+5oyrWQeCkXKw=="
"autodesk-domain-verification=0mpL8cXJsDjFqdB61_oM"

NS

3 record(s)
ns3.purdue.edu.
ns4.purdue.edu.
ns5.purdue.edu.

SOA

1 record(s)
ns3.purdue.edu. hostmaster.purdue.edu. 799544815 1200 180 1209600 3600

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all

DMARC

Configured
v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email,mailto:dmarc-reports@purdue.edu; fo=1

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDRLSZ7lFd6tuD2v6SVo0SW2EW9exN/+LXRjKDG2TEQr/EV0X4tWuSenO/X+1d6h0xWc0fI4TEEKDLnR1jMsRRuzrWTwjkluMyRNKqLB4Rsi73F4JhlHdpbxR+6h5jasRWYcOdFxDQ6se9EgCYkuJJ/MklacfXhUDmeioGVGV7pgQIDAQAB; n=1024,1453155081,1468879881

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Purdue University
Description
Purdue University is a world-renowned, public research university that advances discoveries in science, technology, engineering and math.
Final URL
https://purdue.edu/
HTTP status
206

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://purdue.edu/
Version
2
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
InCommon, LLC
CN
www.purdue.edu
Valid from
2026-07-13T19:00:00-05:00
Valid until
2027-01-28T17:59:59-06:00
Days remaining
173
Protocol
TLSv1.3
Cipher
TLS_CHACHA20_POLY1305_SHA256

Security headers

0 active
—
HSTSNot detected
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
—
X-Frame-OptionsNot detected
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
128.210.7.200
24,71 ms
Cloudflare
1.1.1.1
128.210.7.200
22,62 ms
Quad9
9.9.9.9
128.210.7.200
46,58 ms
OpenDNS
208.67.222.222
128.210.7.200
65,60 ms
AdGuard
94.140.14.14
128.210.7.200
75,55 ms

IP, geolocation and ASNAssociated network information

128.210.7.200

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

purdue-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 27.4 ms - 
Port 465: Closed/unreachable - 4043.7 ms - 
Port 587: Closed/unreachable - 4036 ms -

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