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83
Total
80
DNS
90
Email
77
Security
55
Network
100
Availability
Domaincsuohio.edu
IPv41
IPv62
MX records1
StatusActive
Domain technical report

Cleveland State University Home | Cleveland State University

csuohio.edu

Cleveland State University is a public research university in Cleveland, Ohio, established in 1964. CSU offers over 200 programs across eight colleges emphasizing engaged learning through partnerships through local industries.

Generated: 2026-08-10T05:18:24-05:00 · Cached result

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IPv41
IPv62
MX1
NS6

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

2 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

6 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

72 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers12 / 35 pts · Security

3 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 connectivity35 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
23.185.0.4

AAAA

2 record(s)
2620:12a:8001::4
2620:12a:8000::4

CNAME

0 record(s)
—

Not configured

MX

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

TXT

11 record(s)
"d365mktkey=uo9aj48MkkXpERkJ7tG3Szo13Mha0W0H28MHBINWSa4x"
"facebook-domain-verification=91uea4q79wdcxnq2jpgsil6d227jbj"
"v=spf1 include:_spf.mlsend.com include:spf.protection.outlook.com include:spf1.csuohio.edu exists:%{i}._spf.mta.salesforce.com -all"
"cisco-ci-domain-verification=2f35bde62eb6dc5efe770e637cd1f5e4417870a4ceb2c816e30ad831c1f30cde"
"teamviewer-sso-verification=3a80b02769554732a1e4acfb047b0db5"
"mailerlite-domain-verification=aed22a9cc3b339c08299f8939e2c4924555b9499"
"apple-domain-verification=akNONhqcg9Z0MvSX"
"d365mktkey=st4vrLAcxouppc3UAt6zhgmm2LjjfxqWSDzRifEyFEUx"
"DF5F9B7CC853E7554783F1DFF6F2B296"
"google-site-verification=6maR6FMS2CvoMAzRrhoWiGrzUUqWsVG32R8y01xK09M"
"brevo-code:aef9d214f146eb6c7093e5c4e1f1de34"

NS

6 record(s)
ns4.oar.net.
ns1.csuohio.edu.
ns7.oar.net.
ns6.oar.net.
ns5.oar.net.
ns2.csuohio.edu.

SOA

1 record(s)
ns1.csuohio.edu. helpdesk.csuohio.edu. 1409 14400 3600 2419200 180

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:_spf.mlsend.com include:spf.protection.outlook.com include:spf1.csuohio.edu exists:%{i}._spf.mta.salesforce.com -all

DMARC

Configured
v=DMARC1; p=reject; rua=mailto:x8oy0vuu@ag.us.dmarcian.com, mailto:dmarc.reporting@csuohio.onmicrosoft.com; ruf=mailto:x8oy0vuu@fr.us.dmarcian.com; fo=1

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsxWIhGinhuX6G+W77ADhx0cZj3UxMIqRwEYmoCnJSxJVWzSCLTkL1tnaheyWZAXF7IEfDkjuizLuuMAyEuD/YxH1P09RvxQiWy7mLy/+ljaOGAW90Gish9eisDqx6Kzx1/F/3CWg3hDNgk9xQCV2CV3RTa45z5s0RSEj9FEUHbtGA9JUq9fTbyqtgrR+Fo7wsrca3gLT06zyb0LojvukL86D4YT2PBrRAIHkWXur28RCx78rSJB37uYHmZpbVVg99B1i5hmU6cwaVkDpIFvKQHRQvMAohhODXpIF7aOBhWZgK8crYDz5TPXzS13bX8PyfiF6TvMvsyuteIr/6ZqV5QIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Cleveland State University Home | Cleveland State University
Description
Cleveland State University is a public research university in Cleveland, Ohio, established in 1964. CSU offers over 200 programs across eight colleges emphasizing engaged learning through partnerships through local industries.
Final URL
https://csuohio.edu/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://csuohio.edu/
Version
3
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
csu2.0.csuohio.edu
Valid from
2026-07-24T03:21:14-05:00
Valid until
2026-10-22T03:21:13-05:00
Days remaining
72
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

3 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
—
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
23.185.0.4
76,74 ms
Cloudflare
1.1.1.1
23.185.0.4
84,50 ms
Quad9
9.9.9.9
23.185.0.4
80,56 ms
OpenDNS
208.67.222.222
23.185.0.4
114,22 ms
AdGuard
94.140.14.14
23.185.0.4
104,99 ms

IP, geolocation and ASNAssociated network information

23.185.0.4

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

csuohio-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 24.6 ms - 
Port 465: Closed/unreachable - 4039.6 ms - 
Port 587: Closed/unreachable - 4002 ms -

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