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Total

DNS

Email

Security

Network

Availability

Domainmemphis.edu

IPv42

IPv60

MX records1

StatusActive

Domain technical report

memphis.edu

Generated: 2026-08-09T16:45:50-05:00 · Cached result

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IPv42

IPv60

MX1

NS4

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

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

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

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

175 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: ec2-16-59-217-23.us-east-2.compute.amazonaws.com

✓

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 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

2 record(s)

16.59.217.23
18.217.17.93

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

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

TXT

20 record(s)

"docusign=dc4d1d36-1e55-4ce6-9519-61a6b13c1bb2"
"ih7ko977uq739ncghst3dqajc3"
"b1a4gnlovqd5nb19fu6dtqfr38"
"jamf-site-verification=nXEClMQESatL5V9UAuemjA"
"The University of Memphis, Memphis TN"
"d365mktkey=3ewwfvhkz1v2lanw8gak4a120"
"adobe-idp-site-verification=21873748adec522b150616ea1460eaae985bab7b71989da78547338cb121aa06"
"v=spf1 include:spf.protection.outlook.com ip4:141.225.119.21 ip4:141.225.119.12 ip4:141.225.248.108 include:_spf.salesforce.com include:spfa_1.memphis.edu include:spfb_1.memphis.edu include:spfc_1.memphis.edu" " include:spfd_1.memphis.edu include:_spf.academicworks.com -all"
"docusign=1a1c589a-608f-47ac-94ec-fab1aaaa12dd"
"apple-domain-verification=Kw12bTROmQzc5DTn"
"d365mktkey=6154zyle6hzdut22e5jbqyqpm"
"yahoo-verification-key=K5LE+SuIhhVr+lz98xZ9GMhRTTCs1+gcmw+VctJ5zNI=" "yahoo-verification-key=Mjrtf8FLqBH+8NL000JS3GMHbfvVQkOudxbHevOz70Q="
"e2ma-verification=bkteb"
"AppID=000000004C051610"
"google-site-verification=tnJPAomWuRjTKGt9ZX38sphUvOUwKk_O6t_aCM5UIAM"
"atlassian-domain-verification=vkph3haXJwHsyvE2BSa/uCTiCcONWUQkUSF0jE1PYGLjFq2D4K/JIOScgWiDrL5J"
"ZOOM_verify_tZRd_5_5R-STK4wraQkG9w"
"3E1EBCAC8817DAF304CC5D66D3662CF4"
"openai-domain-verification=dv-IJdb4oNxgxXackDfUngu38zO"
"0d26tyz3v726f69vzzbpjnlsqxsp1dvd"

NS

4 record(s)

ns4.memphis.edu.
ns1.memphis.edu.
ns3.memphis.edu.
ns2.memphis.edu.

SOA

1 record(s)

ns1.memphis.edu. dns-contact.memphis.edu. 1 7200 900 1209600 900

CAA

0 record(s)

—

Not configured

DS

1 record(s)

12121 13 2 FE7618C618241476BA5DC8A3074D855564996C9CA4F91C365161FF41 D4BEEF21

DNSKEY

3 record(s)

256 3 13 SCsHRfH/ekUr5KcndiLJa+XVNutHmp6dmqfs9TYp0/F0ai72YrLqQAmJ yDwfGl2Y06LXOwuqJfwlYSvwKXpVlw==
257 3 13 MHWpGISQX70MbC+bn+W/Wp12JV1MesDOqoYq5p5G22JuqwIkfvelWWb7 Xzi4sDi45Y9PwXs1R/nYfrp0gPNZ0A==
256 3 13 CTyZI5+Wtb6QyLuaHlRS3YrVsQWnGVXtfaS3C0Cg7D/8U/Hn6ZqP47Pd AzpC6ZjB5Ydcljzi7zRgeCwwnC6tUA==

RRSIG

4 record(s)

NS 13 2 28800 20260810064520 20260809204520 37539 memphis.edu. iSAzdexvQosh2fkIPZl4zoAg0hS0BQyWq4CRV0fEcZ3uRBg5PGgIz14g rRXOKE4CUQi2yF0tmZ0LL+H6DACmVg==
TXT 13 2 600 20260809225520 20260809204520 37539 memphis.edu. Raf0Zkat9qQcUU0TvNcHD4kukIxSOrplg2DIIX/Jaa0M91rz8ofiUdyP vFtf507Jtyh1fLd9FguGnJLMaKD6VA==
A 13 2 60 20260809224620 20260809204520 37539 memphis.edu. 46/QeWEqrPoWrVxv0wagmQZ5CDEmaucMbm5Xh345knqEgiB7QkkEXGWk vnOwlBeuq20DIMzdMsybMdKancDCtQ==
DS 13 2 86400 20260814033304 20260807022304 6705 edu. yWCNxhp+b88WXSYB4hkS2TOrQ6jai/GctAnuw7Ls1Eams1+ZyizxNTFL YzJby4tUiL67ANAOsJb6ZRKUS3G1yQ==

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.protection.outlook.com ip4:141.225.119.21 ip4:141.225.119.12 ip4:141.225.248.108 include:_spf.salesforce.com include:spfa_1.memphis.edu include:spfb_1.memphis.edu include:spfc_1.memphis.edu include:spfd_1.memphis.edu include:_spf.academicworks.com -all

DMARC

Configured

v=DMARC1; p=quarantine; rua=mailto:isst-logs@memphis.edu

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArD5TwQJ1iQzXSmRlcelldlxN3nLtjU6qaOQ9Q3DSj/ZKyg01xtYb8UWau3mXsXlZQV3hnn8NvXlQLsa6qde8o8Vt7zEa/oM453wu8uW5ZSQfV4pso5W8Kw/bGPcUUN7QG81APRUF2Jdtk0GaCBYVJ0bEvKukkhVNJ8WCCw4c7vCLQBKq2AawDQVITi6PDgCWJ0hjdsFcva38v9L7nhgoiUIyfeyka/63QLH0Jc9SLsu57P7uIUFbcIIJmsa+n2F5d39rQKuZ6q8Rg9PHOhthz2UbSeEeCUnCxRAyuf+s12RZ7s8gI9riWw/Vdw4kMCt+urwcc9gwcW+TfDIebzG3zQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

No data

Title

Description

Final URL

https://memphis.edu/

HTTP status

HTTP

Status

Final URL

https://www.memphis.edu/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Amazon

www.memphis.edu

Valid from

2026-07-17T19:00:00-05:00

Valid until

2027-01-31T17:59:59-06:00

Days remaining

175

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_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

16.59.217.23, 18.217.17.93

57,38 ms

Cloudflare

1.1.1.1

16.59.217.23, 18.217.17.93

39,40 ms

Quad9

9.9.9.9

16.59.217.23, 18.217.17.93

114,98 ms

OpenDNS

208.67.222.222

16.59.217.23, 18.217.17.93

83,99 ms

AdGuard

94.140.14.14

16.59.217.23, 18.217.17.93

72,11 ms

IP, geolocation and ASNAssociated network information

16.59.217.23

Identified

success

Yes

country

United States

country_code

region

Ohio

city

Columbus

latitude

39.9586885

longitude

-82.9986903

asn

16509

organization

Amazon.com, Inc.

isp

Amazon.com, Inc.

timezone

America/New_York

18.217.17.93

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

memphis-edu.mail.protection.outlook.com

Port 25: Closed/unreachable - 24.6 ms - 
Port 465: Closed/unreachable - 4055.6 ms - 
Port 587: Closed/unreachable - 4016.6 ms -

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