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Security report for lindentreeuk.co.uk

Lindentree Associates · Technology · N/a

High risk. 10 critical or high findings in GDPR outside view, SSL/TLS and 2 other checks.

Security score

31/100

Risk levelHigh

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

Lindentree Associates is a small, specialized consultancy and training provider focused on real-time embedded systems, founded in 1998 by Jim Cooling. The company offers expert services in system analysis, software and electronic design, control engineering, and mentoring, targeting industry professionals and companies requiring deep expertise in embedded systems. The website content is informative and relevant but lacks modern digital maturity features such as privacy policies, contact details, and security certifications. Technically, the website is built with basic HTML and CSS without modern frameworks or CMS, and no evidence of HTTPS or security headers was found, indicating a low level of technical security maturity. The site performs moderately but lacks mobile optimization and accessibility features. From a security perspective, the absence of HTTPS, privacy and cookie policies, and contact information for incident response represent significant gaps. No security best practices or vulnerability disclosures are present, which could expose the business to compliance and trust risks. Overall, the website presents a moderate risk profile due to missing security and privacy controls, limited technical sophistication, and lack of transparency in contact and compliance information. Strategic improvements in security posture, privacy compliance, and digital presence are recommended to enhance trust and reduce risk.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

10 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

  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.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. Network security

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

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • 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

  4. 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"

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

Keep watching lindentreeuk.co.uk

This scan found 24 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.

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Full report

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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
0
Security headers
15
Email security
85
DNS health
60
Network security
0
GDPR outside view
25
Average
31

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 · found on this site
  • 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

Lindentree Associates operates in a niche market providing specialized training and consultancy in real-time embedded systems. Its competitive advantage lies in the founder's extensive experience and a portfolio of publications. The business model is service-oriented, focusing on bespoke training and expert consultancy. The target customers are industry professionals and companies needing advanced embedded systems expertise. The company has maintained a consistent market presence since 1998 but lacks visible partnerships or subsidiaries. Revenue streams likely derive from training courses, consultancy projects, and publications. The website's limited digital marketing and absence of social media presence suggest opportunities for growth through enhanced online engagement and partnerships.

Security posture

The current security posture is weak due to the lack of HTTPS, absence of security headers, and no visible privacy or cookie policies. There is no evidence of incident response readiness or vulnerability disclosure mechanisms. The website does not collect user data via forms, reducing some risk, but the lack of secure communication channels and compliance documentation poses business risks, especially under GDPR and other data protection regulations. The security culture appears minimal, with no certifications or trust indicators displayed. Immediate improvements in encryption, policy transparency, and incident response contact information are necessary to mitigate potential threats and compliance issues.

Recommendations

  1. Implement HTTPS with a valid SSL/TLS certificate to secure all website traffic.
  2. Add comprehensive privacy and cookie policies with clear GDPR compliance statements.
  3. Provide clear contact information including emails and phone numbers for business and security incident reporting.
  4. Introduce security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  5. Enhance mobile optimization and accessibility to improve user experience and SEO.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Lindentree Associates
Description
Lindentree Associates provides training, consultancy and mentoring in real-time embedded systems, focusing on system analysis and design, software design, electronic design and development, and control engineering. Founded in 1998 by Jim Cooling, the company leverages over 40 years of experience in microprocessor-based real-time embedded systems development.
Key services
Training courses, Consultancy, Mentoring, Hardware and software design and development projects, System studies, Development of specialist training courses, Expert technology advice to the legal profession
Content quality
good
Branding
moderate

Technology

Stack
HTML, CSS
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
30/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
good
Navigation
good
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website content is accessible and not blocked by WAF or security mechanisms.
  2. No privacy policy, cookie policy, or terms of service found on the website.
  3. No contact emails, phone numbers, or social media links explicitly provided.
  4. No forms detected on the website for data collection.
  5. Website uses basic HTML and CSS without modern frameworks or CMS.
  6. No security headers or HTTPS information available from provided data.
  7. External link to greenwave.co.uk noted as original design credit.
  8. Content focuses on real-time embedded systems training and consultancy.
  9. No visible security or compliance certifications displayed.
  10. No vulnerability disclosure or security.txt file detected.
Technical notes

Notes

The website is constructed using basic HTML and CSS without modern frameworks or CMS platforms, indicating low technical complexity. There is no evidence of JavaScript libraries or analytics tools. Performance is moderate but could be improved with modern web technologies and responsive design. The absence of meta tags beyond basic description and keywords limits SEO effectiveness. No hosting provider or infrastructure details are available. The site lacks technical features such as security headers and HTTPS, which are critical for modern web security and trust. Technical debt is likely low due to simplicity but modernization is recommended to improve security, performance, and user experience.
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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