Skip to main content

Security report for sinclairgroup.co.uk

Sinclair Group · Transportation · United Kingdom

Low risk. 2 critical or high findings in SSL/TLS and Security headers.

Security score

78/100

Risk levelLow

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

Sinclair Group is a well-established, family-run automotive dealership group operating primarily in Wales and Shropshire, UK. With over 75 years of experience, it represents prestigious automotive brands including Audi, Jaguar, Land Rover, Mercedes-Benz, Volkswagen, and others. The company offers a comprehensive range of services including new and used car sales, vehicle servicing, MOT, repairs, finance and leasing, Motability schemes, fleet management, and bodyshop services. The website reflects a large, professional business with multiple dealership locations and a strong regional market presence. Technically, the website is built on a modern stack including Bootstrap, jQuery, and Font Awesome, with Umbraco CMS inferred from backend resource patterns. It employs Google Tag Manager and Matomo for analytics, along with cookie consent mechanisms, indicating a mature digital infrastructure. The site is mobile-optimized, accessible, and SEO-friendly, providing a good user experience. From a security perspective, the site uses HTTPS and includes cookie consent, but lacks explicit security policy or incident response information. Security headers are partially inferred but not explicitly confirmed. No vulnerabilities or exposed sensitive data were detected in the content. The WHOIS lookup for the exact domain 'www.sinclairgroup.co.uk' failed due to Nominet UK naming rules, suggesting the domain is a subdomain or alias; however, the main domain is presumably registered and legitimate. Overall, Sinclair Group's website demonstrates a strong business credibility and technical maturity with good privacy compliance. Recommendations include enhancing security headers, publishing security policies, and adding vulnerability disclosure information to further improve trust and security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 100 · Low
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

2 findings rated critical or high. Fix these first.

  1. 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

  2. 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';…

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

Keep watching sinclairgroup.co.uk

This scan found 20 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.

Daily monitoring

Recommended

€25per month

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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. See sample alerts.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
69
Security headers
65
Email security
75
DNS health
65
Network security
100
GDPR outside view
95
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

Technical appendix

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

Business context

Business profile

Sinclair Group holds a leading position in the automotive dealership sector in Wales and Shropshire, leveraging a family-run business model with a focus on trust and service excellence. Their diversified portfolio of premium automotive brands and comprehensive aftersales services provide multiple revenue streams including new and used vehicle sales, servicing, finance, and fleet management. The company targets individual consumers, fleet customers, and Motability scheme participants. The presence of multiple dealership locations and dedicated brand teams indicates a strong regional footprint and operational scale. Partnerships with finance and leasing entities and direct sales sites expand their market reach. The website content and structured data reflect a professional and customer-centric approach, supporting growth and brand loyalty.

Security posture

The website exhibits a moderate to good security posture with mandatory HTTPS usage and cookie consent mechanisms in place. The absence of explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options represents an area for improvement. No sensitive data leakage or vulnerable libraries were detected in the HTML content. The lack of published security policies or incident response contacts limits transparency and readiness perception. Analytics and marketing scripts are from reputable sources but should be regularly audited. Overall, the security maturity is adequate for the business type but can be enhanced by adopting additional HTTP security headers, publishing security documentation, and implementing a vulnerability disclosure program.

Recommendations

  1. Implement and enforce Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options HTTP headers to mitigate common web attacks.
  2. Publish a clear security policy and incident response plan on the website to improve transparency and customer trust.
  3. Establish a vulnerability disclosure program and provide security contact channels such as security@ or abuse@ email addresses.
  4. Regularly audit third-party scripts and analytics tools to ensure no vulnerabilities or privacy issues.
  5. Enhance SEO and accessibility by maintaining updated meta tags and ARIA attributes.

Contact details published on the site

Addresses
Legal name
Sinclair Group
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sinclair Group
Description
Representing the most prestigious brands in the industry and operating from the most illustrious, state of the art dealerships in the UK. A family-run business with more than 75 years’ experience and with its people at the heart of its success. Sinclair Group covers Wales and Shropshire, and has dedicated team and dealerships for Audi, BYD, CUPRA, Hyundai, Jaguar, Land Rover, Mercedes-Benz, SEAT, Skoda, Volkswagen and Volkswagen Commercial Vehicles. Sinclair dealerships showcase the latest new car models, electric range, a selection of Approved Used cars. Plus, a complete aftersales solution from servicing, MOTs, maintenance and repairs. Sinclair provide an array of new and used car offers, flexible finance solutions as well as Motability and fleet options, which are updated regularly to help you find the perfect fit for purchasing your next new vehicle.
Key services
New car sales, Used car sales, Vehicle servicing, MOT, and repairs, Finance and leasing, Motability scheme, Fleet and company car services, Bodyshop and accident management
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap, Font Awesome 6, Google Tag Manager, Matomo Analytics, Civic Cookie Control, DynamicNumbers Mediahawk, Veritonic VPR
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of cookie consent mechanism
  • No exposed sensitive data in HTML
  • Use of reputable analytics and tag management

Analytics and tracking

Services
Matomo, Google Analytics (via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads, DoubleClick
Tracking pixels
Matomo, Veritonic VPR, Mediahawk Dynamic Numbers, Civic Cookie Control
Marketing tools
Matomo Analytics
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and multiple dealership locations
  2. No WAF or blocking mechanisms detected
  3. Comprehensive contact information with phone, email, and physical addresses
  4. Use of modern web technologies and analytics tools
  5. Good privacy and cookie policy presence with consent mechanism
  6. No visible security policy or incident response information
  7. WHOIS data unavailable due to domain lookup on 'www.sinclairgroup.co.uk' which is not a registered domain per Nominet
  8. Business is a large, family-run automotive dealership group with strong regional presence
Technical notes

Notes

The website is built on a modern technology stack including Bootstrap for responsive design, jQuery for DOM manipulation, and Font Awesome for icons. It uses Umbraco CMS as inferred from .aspx pages and resource handlers. Analytics are managed via Google Tag Manager and Matomo, with additional marketing tools like Civic Cookie Control and Mediahawk Dynamic Numbers. The site is mobile-optimized and accessible with good SEO practices including meta descriptions and structured data (JSON-LD). Performance is moderate with deferred script loading and preloading of critical assets. Hosting provider details are not explicitly found. The technical infrastructure supports a professional and scalable online presence but could benefit from enhanced security headers and performance optimizations.
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

Reviews of this site

Share your experience with sinclairgroup.co.uk. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review sinclairgroup.co.uk.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.