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Security report for listers.co.uk

Low risk. 4 critical or high findings in DNS health, SSL/TLS and 2 other checks.

Security score

78/100

Risk levelLow

0–100, higher is better. How it is calculated

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Unregistered MX Record

      MX record points to unregistered domain: cluster8a.eu.messagelabs.com

      What to do: Remove or fix MX record pointing to unregistered domain

      • RFC 5321 §5.1
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

  3. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  4. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

Need hands-on remediation? Email guard@offseq.com

Keep watching listers.co.uk

This scan found 17 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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Recommended

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
74
Security headers
70
Email security
93
DNS health
60
Network security
100
GDPR outside view
68
Average
78

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention listers.co.uk, from OffSeq Breach.

Total records
278
Employees
0
Customers
266
Third parties
12
Weak passwords
6%

3 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for listers.co.uk.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

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Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Listers operates in the transportation sector with a business model focused on automotive retail and aftersales services. Its market position as a leading privately-owned motor group in England is supported by a wide portfolio of vehicle brands and services, including new and used vehicle sales, finance, leasing, and fleet management. The company leverages a multi-channel digital strategy with dedicated subdomains for careers and vehicle search, enhancing customer engagement and operational efficiency. The presence of multiple social media channels and marketing tools indicates an active approach to customer acquisition and retention. The business appears stable and mature, with a domain age dating back to 1996, consistent with its market claims.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and secure form implementations. There is no evidence of exposed sensitive data or vulnerable libraries in the HTML content. However, the absence of a publicly available security policy or incident response contact limits transparency in security governance. The use of multiple third-party analytics and marketing scripts introduces a moderate tracking footprint, which is managed with cookie consent mechanisms. No critical vulnerabilities or suspicious activities were detected in the analysis.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and publicize a vulnerability disclosure program or security.txt file.
  4. Enhance website accessibility features to improve compliance and user experience.
  5. Regularly review and audit third-party scripts to minimize security and privacy risks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Listers Group Limited
Description
England's largest privately-owned motor group. Trust Listers with all your new and used car and van sales, servicing and parts needs.
Key services
New and used car sales, Van sales, Servicing and MOTs, Parts supply, Finance and leasing, Motability scheme, Fleet and company vehicle services, Paint and body repair
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Flickity slider, Google Tag Manager, Google Analytics, Microsoft Clarity, Facebook Pixel, LiveChat
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure forms with anti-CSRF tokens
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Services
Google Analytics, Microsoft Clarity
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads (DoubleClick)
Tracking pixels
Facebook Pixel, Microsoft Clarity
Marketing tools
LiveChat
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is professionally designed and well maintained.
  2. Comprehensive vehicle search and brand representation.
  3. Strong presence of customer trust signals including reviews and testimonials.
  4. Use of multiple analytics and marketing tools with privacy considerations.
  5. No signs of malicious or suspicious activity.
  6. Good use of security best practices including HTTPS and security headers.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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