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Total

DNS

Email

Security

Network

100

Availability

Domainplymouth.ac.uk

IPv41

IPv60

MX records1

StatusActive

Domain technical report

University of Plymouth

plymouth.ac.uk

Welcome to the University of Plymouth, advancing knowledge, transforming lives.

Generated: 2026-08-09T20:22:22-05:00 · Cached result

JSON CSV PDF Visit site

IPv41

IPv60

MX1

NS4

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

4 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-RPT5 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

65 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

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/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

20.67.173.146

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

0 plymouth-ac-uk.mail.protection.outlook.com.

TXT

6 record(s)

"75vpi3ptb97r3b9h6v876gr4ov"
"google-site-verification=6AYQH-U5eqFbWkxvj33KPRHzJsxOfs-VvTabaVWS3CY"
"site24x7-signals-domain-verification=c3b97992cdf2970d707512ab7d6aee51"
"autodesk-domain-verification=Fl__-sc1yfRsqzWW_NMx"
"google-site-verification=3eFenW8gfaHWMf5VyxHdBUPeObC53XV3rIshzCJWpGA"
"v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:198.37.159.2 ip4:168.245.16.120 ip4:52.114.0.0/16 ip4:149.72.231.78 ip4:147.160.167.0/26 ip4:109.109.135.244 ip4:141.163.6.254 ip4:141.163.3.100 ~all"

NS

4 record(s)

ns2-09.azure-dns.net.
ns3-09.azure-dns.org.
ns4-09.azure-dns.info.
ns1-09.azure-dns.com.

SOA

1 record(s)

ns1-09.azure-dns.com. hostmaster.plymouth.ac.uk. 2019041204 14400 3600 2419200 3600

SPF

Configured

v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:198.37.159.2 ip4:168.245.16.120 ip4:52.114.0.0/16 ip4:149.72.231.78 ip4:147.160.167.0/26 ip4:109.109.135.244 ip4:141.163.6.254 ip4:141.163.3.100 ~all

DMARC

Configured

v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:rcvdkw2h@ag.eu.dmarcian.com; ruf=mailto:rcvdkw2h@fr.eu.dmarcian.com; pct=100;

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsfZbNCLsqgTH5RbGxClA6/ZE6ra6Zdi5rhgCd5QWnch7yd2l0nWpx8Tm1NNqgigH4nZFYnsBXrZZkhZIQTMBjUCcCIyoREoKjZvICbsIn8oTvHyxVyxwzkLdI7eVZN3cfe5W8Z5kqhjQbD/4+j+saCmxh9fcuu4Cp+IgBjIlA5cdBvY6u8TosT5EHDsmCa7+hswJ1/tyBlPreKc8kXChg56p9yQHFbFU3VtreDwptCRbRDIbL6sL6g5jsTr0OFNhQZQvIo0fGajRn3Lgez2qlvR22ocaRlQG7pQUFHp/K7B8o7fI6HH+eW+DgFlDNQgkYYELb1B5pKp1Th7llJXkYQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

University of Plymouth

Description

Welcome to the University of Plymouth, advancing knowledge, transforming lives.

Final URL

https://www.plymouth.ac.uk/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.plymouth.ac.uk/

Version

Server

nginx

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

www.plymouth.ac.uk

Valid from

2026-07-16T01:41:11-05:00

Valid until

2026-10-14T01:41:10-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

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

20.67.173.146

46,73 ms

Cloudflare

1.1.1.1

20.67.173.146

55,43 ms

Quad9

9.9.9.9

20.67.173.146

139,32 ms

OpenDNS

208.67.222.222

20.67.173.146

31,30 ms

AdGuard

94.140.14.14

20.67.173.146

224,45 ms

IP, geolocation and ASNAssociated network information

20.67.173.146

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

plymouth-ac-uk.mail.protection.outlook.com

Port 25: Closed/unreachable - 27.5 ms - 
Port 465: Closed/unreachable - 4004.6 ms - 
Port 587: Closed/unreachable - 4032.6 ms -

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