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70
Total
75
DNS
90
Email
65
Security
50
Network
60
Availability
Domainsiue.edu
IPv41
IPv60
MX records1
StatusActive
Domain technical report

Southern Illinois University Edwardsville | SIUE

siue.edu

SIUE is a nationally recognized university that provides students with a high-quality, affordable education that prepares them for successful careers and lives of purpose to shape a changing world. Built on the foundation of a broad-based, high-quality education, and enhanced by hands-on research and real-world experiences, the academic preparation SIUE students receive equips them to thrive in the global marketplace and make our communities better places to live.

Generated: 2026-08-10T22:53:41-05:00 · Cached result

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IPv41
IPv60
MX1
NS8

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

8 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 policy5 / 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

87 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 DNS30 / 30 pts · Network

PTR: wwwlb.isg.siue.edu

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 response0 / 40 pts · Availability

No successful HTTP response.

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
146.163.252.208

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 siue-edu.mail.protection.outlook.com.

TXT

7 record(s)
"dell-technologies-domain-verification=siue.edu_07ddf736-7847-4ce1-b4df-f1f58042e4ec_1689187371"
"1password-site-verification=2JLGBEMYQBDGBAM7NKLDIODH5I"
"jamf-site-verification=K_ml6NYTYNevUqDrDT9dPQ"
"apple-domain-verification=j6CSROcZ8eELSE5I"
"autodesk-domain-verification=qt3kEMtS-j3KggQx8s_O"
"coursera-domain-verification=2KuOhLtVuGoNyySSlwJCTKpzOC9kqDQolxpBgiYGbAVKbXUR52vUEKa8SQXVp3fc"
"v=spf1 mx ip4:146.163.252.6 ip4:146.163.252.7 ip4:146.163.252.166 ip4:146.163.252.167 ip4:146.163.5.6 ip4:146.163.5.7 ip4:146.163.5.166 ip4:146.163.5.167 ip4:146.163.252.97 include:spf.protection.outlook.com include:spf2.siue.edu ~all"

NS

8 record(s)
indns2.isg.siue.edu.
exdns3.isg.siue.edu.
exdns1.isg.siue.edu.
smtpb2.isg.siue.edu.
smtpb1.isg.siue.edu.
exdns4.isg.siue.edu.
indns1.isg.siue.edu.
exdns2.isg.siue.edu.

SOA

1 record(s)
exdns3.isg.siue.edu. siue-dns.siue.edu. 30159 21600 3600 604800 3600

CAA

7 record(s)
0 issues "sectigo.com"
0 issues "letsencrypt.org"
0 issues "amazon.com"
0 issues "ssl.com"
0 iodef "mailto:caa-reports@siue.edu"
0 issues "www.digicert.com"
0 issues "pki.goog"

DS

0 record(s)
—

Not configured

DNSKEY

1 record(s)
;; communications error to 69.64.44.20#53: timed out

RRSIG

0 record(s)
—

Not configured

NSEC

1 record(s)
;; communications error to 69.64.44.20#53: timed out

NSEC3

1 record(s)
;; communications error to 69.64.44.20#53: timed out

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 mx ip4:146.163.252.6 ip4:146.163.252.7 ip4:146.163.252.166 ip4:146.163.252.167 ip4:146.163.5.6 ip4:146.163.5.7 ip4:146.163.5.166 ip4:146.163.5.167 ip4:146.163.252.97 include:spf.protection.outlook.com include:spf2.siue.edu ~all

DMARC

Configured
v=DMARC1; p=none; rua=mailto:dmarcreports@siue.edu

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD2q9JdInOGAdSJU/wj+7zjdK1QfS5AQi/BM425t9cyf7nBY9Xju2gF+QhK7D7BGZr0b/ePqmstoo2p0ggEbNLYVyoWqHLWkxFF0IvfdOEFR9XkTI4Wo8300qoGsuMP6cOoAfDA0qAvOb3eZzupqCfXFpn2fO8A2Gc9V9hJOrlDvQIDAQAB; n=1024,1456620477,1472345277

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Southern Illinois University Edwardsville | SIUE
Description
SIUE is a nationally recognized university that provides students with a high-quality, affordable education that prepares them for successful careers and lives of purpose to shape a changing world. Built on the foundation of a broad-based, high-quality education, and enhanced by hands-on research and real-world experiences, the academic preparation SIUE students receive equips them to thrive in the global marketplace and make our communities better places to live.
Final URL
https://www.siue.edu/
HTTP status
200

HTTP

Status
Final URL
https://www.siue.edu/
Version
2
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Internet2
CN
siue.edu
Valid from
2026-04-21T19:00:00-05:00
Valid until
2026-11-06T17:59:59-06:00
Days remaining
87
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

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
146.163.252.208
41,76 ms
Cloudflare
1.1.1.1
146.163.252.208
51,60 ms
Quad9
9.9.9.9
146.163.252.208
100,77 ms
OpenDNS
208.67.222.222
146.163.252.208
52,81 ms
AdGuard
94.140.14.14
146.163.252.208
63,11 ms

IP, geolocation and ASNAssociated network information

146.163.252.208

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

siue-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 34.8 ms - 
Port 465: Closed/unreachable - 4017.7 ms - 
Port 587: Closed/unreachable - 4044.1 ms -

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