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Total

DNS

Email

Security

Network

100

Availability

Domainmtsu.edu

IPv42

IPv60

MX records1

StatusActive

Domain technical report

MTSU - Middle Tennessee State University

mtsu.edu

MTSU is the most affordable public university in Tennessee, serving first-gen students and vets. #1 producer of greater Nashville grads.

Generated: 2026-08-09T12:53:25-05:00 · Cached result

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IPv42

IPv60

MX1

NS3

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 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

69 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 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/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

141.193.213.21
141.193.213.20

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

0 mtsu-edu.mail.protection.outlook.com.

TXT

27 record(s)

"e2ma-verification=2ghib"
"e2ma-verification=9ni3"
"logmein-verification-code=81521953-721b-44ae-a2da-f6d98627016b"
"google-site-verification=soGqm8LTSNDatcnlvLt6C_jkVewfdJFuwS-2ZoAl6WE"
"jamf-site-verification=47s57IVACeL13E40o3ExwQ"
"canva-site-verification=kf4pfvxGaL5oMuop3lNnzA"
"google-site-verification=Vg3xbz_GE0Ct5xoLjs4Xa4KS-uzkqAQ3Nfy_xS14giY"
"google-site-verification=xCsEHi1XPGUDyJtUl3G-tch4e58n44qIS2hzU6Bnqm4\194\160"
"apple-domain-verification=4pNgcpJ6dS3HCz0s"
"google-gws-recovery-domain-verification=40279580"
"google-site-verification=Moip_cnf9SziX8AOJZo7WPZ030zlI8tGJVDpXEur2Uw"
"anthropic-domain-verification-hr6wn0=6Y2QhuS408I0wICSC50kR3Lio"
"ms-domain-verification=6399cb48-af75-4c5b-ab5e-f1ce2255d134"
"autodesk-domain-verification=XEuTyhS1FqyqUxKtwXQe"
"e2ma-verification=r4h"
"v=spf1 mx ip4:161.45.193.155 ip4:161.45.193.156 ip4:128.242.118.200 ip4:198.72.112.160 ip4:98.118.152.30 ip4:98.118.152.29 ip4:98.118.152.28 ip4:98.118.152.27 ip4:98.118.152.26 ip4:108.166.188.163 ip4:108.166.188.162 ip4:50.56.120.52 ip4:38.72.98.48 ip4:5" "0.56.244.157 ip4:209.73.26.208 ip4:209.73.26.210 ip4:209.73.26.219 ip4:24.73.102.138 ip4:161.45.193.157 ip4:161.45.193.154 ip4:198.37.152.49 ip4:12.228.6.215 ip4:139.60.0.0/22 ip4:207.178.216.32/27 ip4:169.54.207.235 ip4:206.107.42.254 ip4:206.107.42.249 " "ip4:216.146.32.161 ip4:216.146.32.188 ip4:216.146.32.187 ip4:216.146.32.186 ip4:216.146.32.185 ip4:81.93.173.201 ip4:81.93.164.103 ip4:199.231.134.73/32 ip4:66.45.4.80 ip4:199.244.78.223 ip4:199.244.78.224 ip4:74.122.104.0/22 ip4:64.128.160.11 ip4:64.128." "160.12 ip4:66.45.4.73 ip4:66.45.4.68 ip4:66.45.4.69 ip4:198.187.196.100 ip4:198.187.196.130 ip4:161.45.193.182 ip4:209.96.218.6 ip4:70.85.145.107 ip4:70.85.145.98 ip4:66.151.109.0/24 ip4:64.72.147.23 ip4:66.219.32.120 ip4:167.181.33.37 ip4:64.15.252.10 ip" "4:216.74.147.22 ip4:167.181.46.91 ip4:161.181.46.72 ip4:161.45.193.81 ip4:161.45.193.86 ip4:161.45.157.30 ip4:161.45.162.49 ip4:161.45.157.40 ip4:161.45.157.41 ip4:161.45.157.42 include:spf.protection.outlook.com include:sendgrid.net include:emsd1.com inc" "lude:amazonses.com include:e2ma.net include:spf_.watermarkinsights.com -all"
"smartsheet-site-validation=7wp2J-EzdOFw7BRNz2diCFnmWLsZPomh"
"facebook-domain-verification=1mifdmrdx1uc8sqw4942wdzl5125mf"
"e2ma-verification=xx8eb"
"V62xjH1/tGkPWpjRan/uoE4ilHPlbIlpPS4zCqNtr+y0ySj2tTOWe5IIev7KGhkogJJVq64YeNzYEjZLitHCew=="
"e2ma-verification=essgb"
"autodesk-domain-verification=TSW4T0u7AeaST8t557J7"
"e2ma-verification=5vqab"
"ZOOM_verify_UMfxiJWpRayUaVj8jcuvIQ"
"e2ma-verification=1khib"
"e2ma-verification=rbd4"
"adobe-idp-site-verification=27396e4cfcb932227936e5417af1dcb814332f34e375f9e0b930b36e51bba213"

NS

3 record(s)

DNS-DMZ1.mtsu.edu.
mtextdns01.mtsu.edu.
DNS-DMZ2.mtsu.edu.

SOA

1 record(s)

DNS-DMZ1.mtsu.edu. abuse.mtsu.edu. 684518170 3600 1800 3600000 10800

SPF

Configured

v=spf1 mx ip4:161.45.193.155 ip4:161.45.193.156 ip4:128.242.118.200 ip4:198.72.112.160 ip4:98.118.152.30 ip4:98.118.152.29 ip4:98.118.152.28 ip4:98.118.152.27 ip4:98.118.152.26 ip4:108.166.188.163 ip4:108.166.188.162 ip4:50.56.120.52 ip4:38.72.98.48 ip4:50.56.244.157 ip4:209.73.26.208 ip4:209.73.26.210 ip4:209.73.26.219 ip4:24.73.102.138 ip4:161.45.193.157 ip4:161.45.193.154 ip4:198.37.152.49 ip4:12.228.6.215 ip4:139.60.0.0/22 ip4:207.178.216.32/27 ip4:169.54.207.235 ip4:206.107.42.254 ip4:206.107.42.249 ip4:216.146.32.161 ip4:216.146.32.188 ip4:216.146.32.187 ip4:216.146.32.186 ip4:216.146.32.185 ip4:81.93.173.201 ip4:81.93.164.103 ip4:199.231.134.73/32 ip4:66.45.4.80 ip4:199.244.78.223 ip4:199.244.78.224 ip4:74.122.104.0/22 ip4:64.128.160.11 ip4:64.128.160.12 ip4:66.45.4.73 ip4:66.45.4.68 ip4:66.45.4.69 ip4:198.187.196.100 ip4:198.187.196.130 ip4:161.45.193.182 ip4:209.96.218.6 ip4:70.85.145.107 ip4:70.85.145.98 ip4:66.151.109.0/24 ip4:64.72.147.23 ip4:66.219.32.120 ip4:167.181.33.37 ip4:64.15.252.10 ip4:216.74.147.22 ip4:167.181.46.91 ip4:161.181.46.72 ip4:161.45.193.81 ip4:161.45.193.86 ip4:161.45.157.30 ip4:161.45.162.49 ip4:161.45.157.40 ip4:161.45.157.41 ip4:161.45.157.42 include:spf.protection.outlook.com include:sendgrid.net include:emsd1.com include:amazonses.com include:e2ma.net include:spf_.watermarkinsights.com -all

DMARC

Configured

v=DMARC1; p=none; rua=mailto:dmarc@mtsu.edu

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/jEknW0liR8n4rEidTApyhVoqmmpCV3gghi7cmEdUMGWYSEb+OhVEhjAXiICnAswbbTVxDVqlrKSx4HJ2Vy2PJ8RNLvLjmQ6TUi+U7oc/aeXA324EpzoEVmE/v/8ZhUVJ/obmKNg26Nmn2cLA3seaDj1LKt/VZiwxuGD22AbZ1QIDAQAB; n=1024,1450862344,1466673544

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

MTSU - Middle Tennessee State University

Description

MTSU is the most affordable public university in Tennessee, serving first-gen students and vets. #1 producer of greater Nashville grads.

Final URL

https://www.mtsu.edu/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.mtsu.edu/

Version

Server

cloudflare

X-Powered-By

WP Engine

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

mtsu.edu

Valid from

2026-07-19T15:50:05-05:00

Valid until

2026-10-17T16:49:58-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

5 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

✓

Permissions PolicyImplemented

—

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

141.193.213.20, 141.193.213.21

76,06 ms

Cloudflare

1.1.1.1

141.193.213.20, 141.193.213.21

83,89 ms

Quad9

9.9.9.9

141.193.213.20, 141.193.213.21

84,36 ms

OpenDNS

208.67.222.222

141.193.213.20, 141.193.213.21

67,25 ms

AdGuard

94.140.14.14

141.193.213.20, 141.193.213.21

116,34 ms

IP, geolocation and ASNAssociated network information

141.193.213.21

No data

success

country

region

city

asn

organization

isp

141.193.213.20

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mtsu-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 24.4 ms - 
Port 465: Closed/unreachable - 4037.1 ms - 
Port 587: Closed/unreachable - 4041.4 ms -

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