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Total

DNS

Email

Security

Network

100

Availability

Domainusna.edu

IPv41

IPv60

MX records5

StatusActive

Domain technical report

USNA Home :: Leaders to Serve the Nation :: USNA

usna.edu

Explore the United States Naval Academy: Discover recent news, events, academic programs, and the mission to develop leaders for the Navy and Marine Corps.

Generated: 2026-08-10T17:32:44-05:00 · Cached result

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IPv41

IPv60

MX5

NS2

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

2 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

5 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

137 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: www.usna.edu

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)

136.160.88.139

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

5 record(s)

1 aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
5 alt1.aspmx.l.google.com.

TXT

9 record(s)

"35sqcn21n6tpj8b7ss7kl8fpkqlgkqth"
"MS=FFA4BCA6F14EFD3DB476E2ED58EAB062063E83C0"
"apple-domain-verification=QSV7fEUU1klWtogk"
"google-site-verification=EdyTMfmIqs2ecfv3s36AmckvZ_nQiJp6HorNVXyoI_0"
"_88d63cb993o3d1elyoam6wlfxxcbrj0"
"google-site-verification=ne68o_3dtVn6fG2bIsUPeIDEViY0d8blB2E_Zvrg-wA"
"adobe-idp-site-verification=1d738a39f37f7e6c04c405c0eb083a3b174373eec242bcb22b7dd88aa71e3221"
"_oqy15nleng91ufwdq1mee56oqvgys7j"
"v=spf1 ip4:136.160.88.0/21 ip4:216.177.90.7/32 ip4:209.67.131.231/32 ip4:216.177.90.15/32 ip4:50.31.43.252/32 ip4:168.245.122.109/32 ip4:216.24.224.0/20 include:_spf.google.com" " include:_spf.salesforce.com include:mh.blackboard.com include:spf.constantcontact.com include:spf1.formassembly.com -all"

NS

2 record(s)

ns-a.usna.edu.
ns-b.usna.edu.

SOA

1 record(s)

ns-a.usna.edu. dns.usna.edu. 2015125005 21600 2160 1296000 900

CAA

0 record(s)

—

Not configured

DS

1 record(s)

31696 8 2 74A47B74B5F181F0F79D1B46A7D18C95491CAFD10C116626B5B40A6E 615A7125

DNSKEY

4 record(s)

256 3 8 AwEAAeSPgvjHjd+QufkozaXE9R5hPnVvFaCCSHMwG6MWxAYeGZYrI5zk VU/BlAJsQ89FcbBSlAVJbTHCIsdLwegKdGBsZhMJPlaGLh+ivWTyDdTO bqh8FNwEFdYTDz98tW44fmxgNpAOSvaWDsA1gG/PIloL6zUz3CjZOaYE REb2w2Kv
256 3 8 AwEAAaYIqisfDZL8xAgsP5u+ZI8gQmznUgECGfCUHHjvXUTGPaATYuGX FKpNBzuDc12lLibOGkhY7EPqhCoqst1PVhs0C86zF7tK+oY0RzVoiXNT VBE3q1zWDse2epqh0SRMzGxPvgXeKzoda809obsUZcGkVLqYXHPbtP9w P5dZe+Lr
257 3 8 AwEAAaulYMpeHTDuF+6zTIknV0oxZUJEnWNfyNry79M6ajQeHxyV2wOy euHN1lm9dlaEsch7B2A1qBMTOjgDM/fG8addhu/3P2DaeLAfad+hXLSH vdOV+9asHA/N5qmwmA4fqrXmExBGBZOeiHYWDm6TXBA1X2UMC5ijotQc vvSSCWgMdiNYFccd9P6e3iouSdJ9GOlDW0wjcQe4GAzsEuvKdqiS9Gwp CpCOPHEeEqdxqbbU/ClD+pRJ7rVoQo19YTeCFXmh3ErkIlt1/rJ04re8 N+bAnwF6ktcUOZ7neq2D3VnUuJBJKiCSbzW7F1ERSv0p5xz3kjsBzcL9 eOnPIJQpMVE=
256 3 8 AwEAAeYjZfYw8SlHwcgHC9pojACx2nrlePwGJ6QbC9+/yJ3ROu/N3kfR SJV5LOLdz75bYT6B+RnpRa9zTfBlRGtom5Y7ztNyBE1gmxvZTozXPY4A 4CRWHB2Mfx01DHLOp4QgqQVV5AwbgPIx8TOEaom+AimvQvUn+NSCfdHk 6SyXg7Qh

RRSIG

5 record(s)

TXT 8 2 600 20260814003746 20260809233746 31156 usna.edu. dkj4Jr4/x0MT9/NqA9BepqFgs7HpSzusPF6WqfUiGZp18yUS2pRLi/A3 Ap3S9YZ4yIdaD3a1c8VJX/Wlox1TjcgSUr+ZIe9UjCHGxbI8OXzISoxE sjvqg6jVItMzJGBjHrjcYUTD6VK36CLh1kqmwW3dtw9epOvsZ4dZBZZl rIk=
SOA 8 2 86400 20260814070830 20260810060830 31156 usna.edu. p26jAUH68bGui6qF35D0gWUmKglo/88o+qn5UcPT5A+VVvmrjXKxy229 BWoCNm+6h1ZLkTcfMFCDe5UNXklFNhZGtCsmTkzSgmXfzcm6ePo6TCYx 1vDjM5em1xsmwKENlB2tjizJQnt3Mu9nGUjDJErJdpNaq0ZGdRaGFn6j plo=
NS 8 2 86400 20260814003746 20260809233746 31156 usna.edu. RHBDdRKrBExCBZzK2Gg0IbtJyHmwgdaHg8Uc5VAchk/MNTnLlHEYIL3V ds/j3T/0P0+D5Zb4B/Vwo0611L5+bLL7HHW6gzq+hHJD0rcG8EbXmUPl 463LgZdGJKyG3EbyaXWrw3iiyAhipeHT/5LDTxMOlzReLRSwTuzbJoUV Vkg=
A 8 2 86400 20260814003746 20260809233746 31156 usna.edu. qrXswXQsVY0Nw8noCSNw1VjP+geCXEjzeOFQQaCfZnmldfhNQ08njH1G 8fXHhCuHh3K3W5fBVBiUKq4VgjA9C8qK/YaDev0kTRwuZ9nPv+NsamNg 0/5EdQkfT+JcF/nCt30AzjBa8NYcYMhDsO+1L2AfKBKy9uA5VwOBb+3t j5s=
DS 13 2 86400 20260817033459 20260810022459 6705 edu. Ul2q92VJDn1q8G+MbiuLbJuD9CDLNVTlT2qMV7GxQA/cwKwE9eCZeb6Q 2/ojL3fhM8j4JASrcCO1lpNGeIzC6A==

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 ip4:136.160.88.0/21 ip4:216.177.90.7/32 ip4:209.67.131.231/32 ip4:216.177.90.15/32 ip4:50.31.43.252/32 ip4:168.245.122.109/32 ip4:216.24.224.0/20 include:_spf.google.com include:_spf.salesforce.com include:mh.blackboard.com include:spf.constantcontact.com include:spf1.formassembly.com -all

DMARC

Configured

v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc_reporting@usna.edu,mailto:dmarc_reports@mail.mil

DKIM

Selector google

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiOmDywfzHP3okdM1IChzLC/gTMlnIjBQ5VXVdtjfsNNRyaGzCkitYLCnsszTJKk0Wa1zi7nceV4ptFI4Wemt5vlkesuNdtQLWoFaCeh01P86aSNJroT1wVTzxTX0vToljTuozPc8qnOixO2Ho7W5KoUpCxiZvhyN14n1b6FFFouGVFrYOebfHQzFWZJ9VPfRPhtwH+GsBj/p3/5OEfoN4awb7QA4KLmxG6Rb8Cq+YsT3v8fYLon+Yye1uyrQAxaV74gtxnIhOezoqBlvhMmIvM1P4fG3DYFwanWP/qB2T2vtiFPfEHoGi3YA95QIJCGREobBwFxfmMdUT75m4ARIKwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

USNA Home :: Leaders to Serve the Nation :: USNA

Description

Explore the United States Naval Academy: Discover recent news, events, academic programs, and the mission to develop leaders for the Navy and Marine Corps.

Final URL

https://usna.edu/homepage.php

HTTP status

200

HTTP

Status

HTTP/1.1 200 OK

Final URL

https://usna.edu/homepage.php

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

www.usna.edu

Valid from

2026-06-09T19:00:00-05:00

Valid until

2026-12-25T17:59:59-06:00

Days remaining

137

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

2 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

✓

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

136.160.88.139

75,38 ms

Cloudflare

1.1.1.1

136.160.88.139

218,62 ms

Quad9

9.9.9.9

136.160.88.139

29,95 ms

OpenDNS

208.67.222.222

136.160.88.139

47,75 ms

AdGuard

94.140.14.14

136.160.88.139

47,18 ms

IP, geolocation and ASNAssociated network information

136.160.88.139

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

aspmx.l.google.com

Port 25: Closed/unreachable - 21.6 ms - 220 mx.google.com ESMTP 586e51a60fabf-459f208b4a7si9385912fac.271 - gsmtp
Port 465: Closed/unreachable - 4004.3 ms - 
Port 587: Closed/unreachable - 4019.5 ms -

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