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Total

DNS

Email

Security

Network

100

Availability

Domainport.ac.uk

IPv41

IPv60

MX records7

StatusActive

Domain technical report

University of Portsmouth | A New Breed of University

port.ac.uk

Build your future at the University of Portsmouth. Explore a career-focused degree, gain real-world experience, and find the path that’s right for you.

Generated: 2026-08-09T14:05:46-05:00 · Cached result

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IPv41

IPv60

MX7

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 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

7 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

124 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 DNS30 / 30 pts · Network

PTR: ec2-3-248-71-106.eu-west-1.compute.amazonaws.com

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)

3.248.71.106

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

7 record(s)

30 aspmx2.googlemail.com.
10 aspmx.l.google.com.
30 aspmx4.googlemail.com.
30 aspmx5.googlemail.com.
20 alt1.aspmx.l.google.com.
20 alt2.aspmx.l.google.com.
30 aspmx3.googlemail.com.

TXT

21 record(s)

"google-site-verification=hrSnXjmt7-eAEJEjIH-fiuawiesBNcFr6qNeVv966zg"
"autodesk-domain-verification=LDC6vXOvq6g-IoQilToS"
"google-site-verification=MG8G2wgSurJ1BJYRhOsZMXAKDeNSn8muTs-9ej0XsB4"
"QuoVadis=2397bf92-d6ee-4bf4-9d71-c1166fe9a390"
"google-site-verification=ypPYZSCt78tYNb0RXPofLp6Ci8V4dIfMH8DS4EvkwYw"
"ZOOM_verify_yxYkl5joSuWZasub4NmTGw"
"MS=ms83483494"
"MS=ms72065754"
"mentimeter-9294d899-8aaf-412d-85f8-1a7bf555b52f"
"QuoVadis=fd9bd3c6-fc77-4921-bb28-2ed4c760c7f6"
"google-site-verification=h_0fY5D3W7WNf2M9sw_gCJsLVloRynMBNSF5yTkoTBQ"
"ccea4d7d-a915-4673-93a2-447235b1f411.100718"
"facebook-domain-verification=ph58tfqnpcpv1djag9pytnrkpcqraq"
"cisco-ci-domain-verification=53603b8b45c2a2b85bb3c115dfe8014f3ed1fb8e6d247f1a23395035034dfe3b"
"adobe-idp-site-verification=2dd099867f687579ba1908f7c73e2059e4b7560d916e172e23370e23438b9b32"
"_globalsign-domain-verification=xqvYWm9syTayijselvIbYnPFCI4hwwrQQB4ac0jtgb"
"google-site-verification=eufaA8KpSVLizzgcmKi2ycwKwaQtFCr2Uow2aWjt6Ic"
"amazonses:OwSONUbu7+zfk/nLBW1wF8X18S8gygJqGmAgCXAmMdo="
"v=spf1 include:_spf.google.com ip4:148.197.0.0/16 include:servers.mcsv.net include:_ses.getbynder.com ip4:108.177.15.27 ip4:80.6.91.150 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19" " ip4:76.223.176.0/20 ip4:54.240.64.0/19 ip4:54.240.96.0/19 ip4:52.82.172.0/22 ip4:34.198.56.55 ip4:76.223.128.0/19 ip6:2a00:2381:db::/56 ip6:2a05:2080::/29 ip4:5.196.146.211 ip4:5.196.146.250 ip4:46.105.146.11 ip4:192.9" "9.26.11 ip4:54.36.22.50 ip4:54.36.22.124 ip4:5.196.146.195 ip4:67.227.87.186 ip4:217.182.181.164 ip4:217.182.181.254 ip4:147.160.167.0/26 ip4:52.49.201.246 ip4:52.49.235.189 ip4:23.21.109.197 ip4:23.21.109.212 exists:%{i}._spf.mta.salesforce.com include:s" "pf.planoncloud.com include:spf.protection.outlook.com -all"
"docusign=6fc6196a-9cc0-49f0-9e24-6e1619226c26"
"docusign=a977bae2-af0c-4eb1-af30-0ba46d2db488"

NS

2 record(s)

dns1.port.ac.uk.
dns0.port.ac.uk.

SOA

1 record(s)

dns0.port.ac.uk. hostmaster.port.ac.uk. 2019525455 14400 3600 2419200 3600

SPF

Configured

v=spf1 include:_spf.google.com ip4:148.197.0.0/16 include:servers.mcsv.net include:_ses.getbynder.com ip4:108.177.15.27 ip4:80.6.91.150 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 ip4:69.169.224.0/20 ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:76.223.176.0/20 ip4:54.240.64.0/19 ip4:54.240.96.0/19 ip4:52.82.172.0/22 ip4:34.198.56.55 ip4:76.223.128.0/19 ip6:2a00:2381:db::/56 ip6:2a05:2080::/29 ip4:5.196.146.211 ip4:5.196.146.250 ip4:46.105.146.11 ip4:192.99.26.11 ip4:54.36.22.50 ip4:54.36.22.124 ip4:5.196.146.195 ip4:67.227.87.186 ip4:217.182.181.164 ip4:217.182.181.254 ip4:147.160.167.0/26 ip4:52.49.201.246 ip4:52.49.235.189 ip4:23.21.109.197 ip4:23.21.109.212 exists:%{i}._spf.mta.salesforce.com include:spf.planoncloud.com include:spf.protection.outlook.com -all

DMARC

Configured

v=DMARC1; p=reject; pct=100; adkim=r; aspf=r; ri=86400; rua=mailto:dmarc-rua@dmarc.service.gov.uk

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCm928Ci/2gUIZ6cd3wWtu8iWf1zyOTfqjCcGdHwNk/K3Mk7awcqNCarZTwvQw5KPm0QSRHm2MILcQofs/7fur8CkHbefXTdActmY+RuxZ2OjX2rWeL+hsBabznpr9RDM2jSLGgbb9daHbagnawcVA8LQTMRCB4n4ZdFWdaibwLaQIDAQAB; n=1024,1450549716,1466360916

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

University of Portsmouth | A New Breed of University

Description

Build your future at the University of Portsmouth. Explore a career-focused degree, gain real-world experience, and find the path that’s right for you.

Final URL

https://www.port.ac.uk/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.port.ac.uk/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Sectigo Limited

port.ac.uk

Valid from

2025-12-10T18:00:00-06:00

Valid until

2026-12-11T17:59:59-06:00

Days remaining

124

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

4 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

—

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

3.248.71.106

59,90 ms

Cloudflare

1.1.1.1

3.248.71.106

252,81 ms

Quad9

9.9.9.9

3.248.71.106

344,13 ms

OpenDNS

208.67.222.222

3.248.71.106

227,07 ms

AdGuard

94.140.14.14

3.248.71.106

143,26 ms

IP, geolocation and ASNAssociated network information

3.248.71.106

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

aspmx2.googlemail.com

Port 25: Closed/unreachable - 1.2 ms - 
Port 465: Closed/unreachable - 4021 ms - 
Port 587: Closed/unreachable - 4019.8 ms -

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