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Security report for mentzendorff.co.uk

Mentzendorff · Real Estate · United Kingdom

Medium risk. 6 critical or high findings in Network security, SSL/TLS and 2 other checks.

Security score

53/100

Risk levelMedium

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

Mentzendorff is a well-established company specializing in the representation and management of a portfolio of luxury estates, primarily in the wine and spirits sector. The website reflects a professional and consistent brand presence, targeting industry professionals and connoisseurs. The company leverages a modern WordPress-based technical infrastructure with popular plugins for content management, e-commerce, and analytics. Security posture is strong with HTTPS enforced and cookie consent mechanisms in place, though there is room for improvement in security headers and incident response transparency. Overall, the website is trustworthy, compliant with GDPR, and provides clear contact channels, supporting a medium-sized business profile with a long history dating back to 1996.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

6 findings rated critical or high. Fix these first.

  1. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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 mentzendorff.co.uk

This scan found 25 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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  • 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
47
Security headers
15
Email security
80
DNS health
70
Network security
20
GDPR outside view
85
Average
53

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

The company positions itself as a key player in luxury estate portfolio management, focusing on high-end wine and spirits brands. Its business model revolves around brand representation, vintage reporting, and sustainability initiatives. The website content and social media integration indicate active engagement with the market and customers. The absence of terms of service and explicit security policies suggests potential areas for maturity. The domain age and registration data support the legitimacy and stability of the business. Marketing efforts include Google Analytics tracking and Instagram feeds, targeting a mature audience interested in premium products.

Security posture

The website demonstrates a good security baseline with HTTPS and cookie consent compliance. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the lack of explicit security headers and incident response information indicates opportunities to enhance security maturity. The use of third-party plugins necessitates ongoing vulnerability management. No WAF or blocking mechanisms were detected, allowing full content accessibility. Overall, the security posture is solid but could benefit from formalized policies and technical hardening.

Recommendations

  1. Implement HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, and X-XSS-Protection to enhance protection against common web attacks.
  2. Publish a dedicated security policy or incident response page to improve transparency and readiness.
  3. Regularly audit and update WordPress plugins and themes to mitigate vulnerabilities.
  4. Consider adding a security.txt file to facilitate responsible vulnerability disclosure.
  5. Enhance accessibility features to improve compliance and user experience for all visitors.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mentzendorff
Description
Mentzendorff is a company representing and managing a portfolio of some of the world's finest estates, primarily in wine and spirits, including luxury vineyards and brands.
Key services
Portfolio representation, Brand management, Vintage reports, Sustainability initiatives
Content quality
good
Branding
consistent

Technology

Stack
WordPress, WooCommerce, WPBakery Page Builder, Slider Revolution, Google Analytics, jQuery, Instagram Feed plugin, Cookie Law Info plugin
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced with valid SSL
  • Cookie consent with opt-out mechanism
  • No exposed sensitive data in HTML
  • Use of security plugins (Cookie Law Info)

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
MonsterInsights Google Analytics plugin
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured
  2. Comprehensive cookie consent and privacy policy present
  3. Contact information is clearly provided with multiple channels
  4. No visible security issues or WAF blocking
  5. Use of modern WordPress plugins and technologies
  6. Focus on luxury wine and spirits estates portfolio
  7. Social media integration with Instagram, Twitter, YouTube
  8. No terms of service page found
  9. No explicit security or incident response policies found
Technical notes

Notes

The website is built on WordPress CMS with WooCommerce for e-commerce capabilities, enhanced by WPBakery Page Builder and Slider Revolution for rich content presentation. It uses Google Fonts, jQuery, and Instagram Feed integration for social media content. Cookie Law Info plugin manages GDPR cookie consent. The site is mobile optimized with responsive design and includes SEO-friendly meta tags and Open Graph data. Performance is moderate, with potential improvements in loading speed and accessibility. Hosting details are not explicit but domain registration is stable and long-term. Overall, the technical infrastructure supports a professional and functional online presence.
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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