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Security report for tclarke.co.uk

TClarke · Energy · United Kingdom

Medium risk. 3 critical or high findings in SSL/TLS and GDPR outside view.

Security score

72/100

Risk levelMedium

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

TClarke is a leading UK-based engineering services company specializing in technology-led building services and complex engineering projects. The company positions itself as a premier resource across the UK, with a strong focus on innovation, integrated systems, and community involvement. Their website reflects a professional and modern digital presence with multimedia content and comprehensive policy documentation. Technically, the site is built on WordPress with modern plugins and tracking tools, offering good mobile optimization and SEO. Security posture is solid with HTTPS and reCAPTCHA usage, though some security headers are missing and no incident response or vulnerability disclosure pages are present. The WHOIS data is missing, which raises some concerns about domain registration transparency but the business information and trust signals on the site support legitimacy. Overall, the site is well-structured and compliant with GDPR, providing a trustworthy experience for visitors.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

3 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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

  2. 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 tclarke.co.uk

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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
27
Security headers
85
Email security
70
DNS health
70
Network security
100
GDPR outside view
80
Average
72

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

TClarke operates in the energy and transportation sectors, delivering engineering services with a technology-driven approach. Their business model focuses on design, build, and integrated engineering solutions for landmark projects across the UK. The company maintains a strong regional presence and invests in skills and local talent. Their partnership with third-party platforms for employee management and comprehensive policy disclosures indicate mature operational practices. The company leverages social media and multimedia content for marketing and community engagement. The absence of WHOIS data suggests privacy protection or registration issues, which should be monitored. The company’s clear registration number and UK address enhance credibility.

Security posture

The website demonstrates a good security posture with enforced HTTPS, use of Google reCAPTCHA on forms, and cookie consent management via the Complianz GDPR plugin. However, the lack of visible security headers such as Content-Security-Policy and X-Frame-Options is a gap. No explicit incident response or vulnerability disclosure information is provided, which limits transparency in security management. The site uses several third-party scripts and analytics tools, which should be regularly audited for vulnerabilities. Overall, the security measures are adequate for a corporate website but could be improved with additional headers and published security policies.

Recommendations

  1. Implement security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish an incident response policy and vulnerability disclosure page to improve transparency and readiness.
  3. Conduct regular security audits of third-party scripts and plugins to mitigate potential vulnerabilities.
  4. Enhance accessibility features to improve compliance and user experience for all visitors.
  5. Verify and update WHOIS registration information to improve domain trustworthiness and transparency.

Contact details published on the site

Addresses
Legal name
TClarke
Registration number
119351
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TClarke
Description
TClarke is the UK’s leading Engineering Services company offering technology-led building services, pioneering new technologies, and delivering complex engineering projects across the UK.
Key services
Design and Build, Engineering Services, Technology-led Building Services
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, Google Analytics, Google Tag Manager, YouTube embedded videos, jQuery, FancyApps UI, Gravity Forms, Complianz GDPR plugin, TablePress
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of reCAPTCHA on forms
  • Cookie consent management with Complianz plugin

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Cloudflare Insights
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Cloudflare Insights
Marketing tools
Yoast SEO, Complianz GDPR Cookie Consent
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich multimedia content
  2. Strong presence of embedded YouTube videos for marketing
  3. Cookie consent and privacy compliance mechanisms implemented
  4. No visible security headers detected in HTML source
  5. WHOIS data missing, indicating possible privacy protection or domain registration issues
  6. Multiple official policy documents linked in footer
  7. Social media presence on X (Twitter), YouTube, LinkedIn
  8. Contact form present but no explicit email or phone number found in HTML
  9. Company registration number and UK address clearly stated
  10. No terms of service page found
Technical notes

Notes

The website is built on WordPress CMS with a modern tech stack including Yoast SEO, Google Analytics, Google Tag Manager, and embedded YouTube videos for rich content delivery. It uses jQuery and FancyApps UI for UI components and the Complianz GDPR plugin for privacy compliance. The site shows good mobile responsiveness and SEO optimization. Performance is moderate, with multiple embedded videos potentially impacting load times. The site lacks some security headers and could benefit from improved accessibility features. Hosting provider details are not explicitly found. Overall, the technical infrastructure supports a professional corporate website but has room for security and performance enhancements.
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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