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81
Total
70
DNS
90
Email
73
Security
65
Network
100
Availability
Domainlincoln.ac.uk
IPv42
IPv60
MX records1
StatusActive
Domain technical report

University of Lincoln

lincoln.ac.uk

Start your career at the University of Lincoln. Explore career-focused degrees and enjoy an exceptional student experience on our modern, city-centre campus. Apply now for 2025 entry.

Generated: 2026-08-10T16:56:19-05:00 · Cached result

JSONCSVPDFVisit site
IPv42
IPv60
MX1
NS5

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

5 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

94 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: a6258862aca3b0b9c.awsglobalaccelerator.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 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)
3.33.254.193
15.197.195.183

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 lincoln-ac-uk.mail.protection.outlook.com.

TXT

15 record(s)
"jamf-site-verification=hE1EwJOdcOuFBPqQ4-QcOw"
"adobe-idp-site-verification=683be71f-9a37-487b-ba28-4cd00a41828b"
"anthropic-domain-verification-y96ezn=wDAOXiiaPaS4DyZtaMkgYuppF"
"v=spf1 ip4:212.219.220.162 ip4:212.219.221.97 ip4:212.219.221.98 include:_spf1.lincoln.ac.uk include:spf.protection.outlook.com include:mailrelay.t1cloud.com include:mh.blackboard.com -all"
"mandrill_verify.mZPOYq-BxGG6D4pMH3sA3A"
"google-site-verification=xLpJZBEASP3F5x12LGRf7_9rIScFiFa_eIzS7botRL0"
"google-site-verification=SfoH8Wx0MR277OD1RfgL-xepPhqqPjbHkOv32lPrgJc"
"FBD2E5BB-C5F0-4A5E-93CC-70FBB17B6698"
"uolcwswebredirects.azurewebsites.net"
"openai-domain-verification=dv-45YThbFV6ZOH8i7QMMvV4EyN"
"L9v7kMQXm7JSfhQooOIVofE8ZxtsRSQgV5nfVbAVk8FcYDuO1igkpJjNlNBLXGuOrvE/fQDxVbMwcCUdv0ttWg=="
"apple-domain-verification=56twmWFzj3f53CUH"
"QuoVadis=1da0395b-366b-4623-b943-3b7e4f0f186f" ""
"EuGZY+71/hzWimbVur1h3dDQGKsbZ4KhVjWdyd5ncgaMxKHaE0iU+gp9ooUnHHQQW932vJ8AbT3IWYvevBun8Q=="
"MS=ms25855266"

NS

5 record(s)
ns01.lincoln.ac.uk.
ns03.lincoln.ac.uk.
ns4.ja.net.
ns02.lincoln.ac.uk.
ns04.lincoln.ac.uk.

SOA

1 record(s)
ns01.lincoln.ac.uk. hostmaster.lincoln.ac.uk. 2018076513 14400 3600 1209600 3600

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

0 record(s)
—

Not configured

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 ip4:212.219.220.162 ip4:212.219.221.97 ip4:212.219.221.98 include:_spf1.lincoln.ac.uk include:spf.protection.outlook.com include:mailrelay.t1cloud.com include:mh.blackboard.com -all

DMARC

Configured
v=DMARC1;p=reject;sp=none;rua=mailto:dmarc_agg@vali.email;

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmHN/aTyQ6qJFAh4Cnyw71+BtKhhpZ1+KD/X77MQbh7aHM/zsBJUVSABV+fM9iaX3MkGolTcbfCoM8xkXVwBemUbiv2xbRklrJyNpx50ouzXMpsfW9oEazGKBk6OG0mkLvsBtxdUPqxCHDkvEPSoMp3wdrU72A9czCVaO0XoJ43FxcXq2wPwg1Qu5oIg7UrdKS128Oaui9P0F8rsbm8WuJbFBGiOqjM7Xkf1ubMeHqsYG4xIXC5VN8tPRJii6aSJ+M7zqdNi7QSyFUXEVBBE3VHlDuxDcSr8PhlX7Pf/X/jRFbyQbpLA+i3RBExZwHtUgt68F+Z8NRVA8G8teEmA47QIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
University of Lincoln
Description
Start your career at the University of Lincoln. Explore career-focused degrees and enjoy an exceptional student experience on our modern, city-centre campus. Apply now for 2025 entry.
Final URL
https://www.lincoln.ac.uk/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.lincoln.ac.uk/
Version
3
Server
Apache
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Amazon
CN
www.lincoln.ac.uk
Valid from
2025-10-13T19:00:00-05:00
Valid until
2026-11-12T17:59:59-06:00
Days remaining
94
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
15.197.195.183, 3.33.254.193
139,29 ms
Cloudflare
1.1.1.1
15.197.195.183, 3.33.254.193
473,02 ms
Quad9
9.9.9.9
15.197.195.183, 3.33.254.193
336,41 ms
OpenDNS
208.67.222.222
15.197.195.183, 3.33.254.193
143,51 ms
AdGuard
94.140.14.14
15.197.195.183, 3.33.254.193
143,29 ms

IP, geolocation and ASNAssociated network information

3.33.254.193

No data
success
No
country
region
city
asn
organization
isp

15.197.195.183

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

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

Port 25: Closed/unreachable - 27.6 ms - 
Port 465: Closed/unreachable - 4020.8 ms - 
Port 587: Closed/unreachable - 4008.1 ms -

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