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Security report for trilliumpartners.co.uk

Trillium Partners Limited · Finance · United Kingdom

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

68/100

Risk levelMedium

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

Trillium Partners Limited is a UK-based corporate finance advisory firm specializing in mergers and acquisitions and private capital solutions, primarily serving the media, information, marketing, and education sectors. The company positions itself as a mid-market focused adviser with over 30 years of experience and a global network. The website reflects a professional business model targeting listed companies, private firms, and financial sponsors. The digital presence is built on WordPress, hosted on WP Engine, and incorporates standard SEO and analytics tools such as Yoast SEO and Google Analytics. Cookie consent management is implemented effectively, demonstrating attention to privacy compliance. Security posture is generally strong with HTTPS enforced and no visible vulnerabilities, though some security headers are missing and explicit security policies are not present. The WHOIS data for the domain is incomplete due to a domain naming rule violation error, which raises some concerns about domain registration legitimacy. Overall, the website is professional, trustworthy, and well-structured but would benefit from enhanced security policies and WHOIS clarity.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 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. 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

  2. GDPR outside view

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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics

      What to do: Document all third-party data sharing in your privacy policy

  3. 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

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

Keep watching trilliumpartners.co.uk

This scan found 23 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

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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
45
Email security
80
DNS health
70
Network security
100
GDPR outside view
65
Average
68

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 operates in a niche corporate finance advisory market with a focus on mid-market transactions in media and related sectors. Its competitive advantage lies in its specialized expertise and global network. The business model revolves around advisory services for M&A and fundraising, targeting corporate clients and financial sponsors. The website content and structure support this positioning with clear sector focus and service descriptions. The partnership with Skylark Creative for site production indicates a professional approach to digital marketing. The absence of direct contact emails or phone numbers on the homepage suggests a controlled communication channel, likely via contact forms. The incomplete WHOIS data is a potential risk factor that should be addressed to maintain trust. No affiliate or advertising programs are evident, indicating a pure service-oriented business model.

Security posture

The website employs HTTPS with a valid SSL certificate, ensuring encrypted communications. Cookie consent is managed via CookieYes, providing users control over tracking preferences, which aligns with GDPR requirements. However, the absence of key security headers such as Content Security Policy (CSP), X-Frame-Options, and X-XSS-Protection reduces the overall security posture. No security.txt or vulnerability disclosure policy is present, limiting transparency for security researchers. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The site does not appear to use a Web Application Firewall (WAF) or other advanced security mechanisms. Incident response contact information is not provided, which could delay handling of security incidents. Overall, the security posture is adequate for a corporate advisory website but could be improved with additional headers, policies, and incident response readiness.

Recommendations

  1. Implement standard security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection to enhance protection against common web attacks.
  2. Publish comprehensive privacy and security policies beyond cookie declarations to improve transparency and compliance.
  3. Establish and publicize a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  4. Verify and resolve domain WHOIS registration issues to strengthen domain legitimacy and trust.
  5. Enhance accessibility features and conduct regular audits of third-party scripts to minimize security risks and improve user experience.

Contact details published on the site

Addresses
Legal name
Trillium Partners Limited
Registration number
07011410
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Trillium Partners Limited
Description
A leading M&A and private capital solutions adviser to the global media, information, marketing and education services sectors for over 30 years.
Key services
Mergers & Acquisitions advisory, Private capital solutions, Fundraising advice
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO plugin, Google Analytics, CookieYes consent management, jQuery
Platforms
WP Engine hosting
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with customization
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. WHOIS data is unavailable due to domain naming rule violation error.
  3. Site uses WordPress CMS with standard SEO and analytics tools.
  4. Cookie consent is implemented with customization options.
  5. No explicit privacy or security policy pages found beyond cookie declaration.
  6. Contact information includes physical address and contact form but no direct emails or phone numbers visible.
  7. No security.txt or vulnerability disclosure found.
  8. Site content is professional and targeted at corporate clients in finance and media sectors.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on WordPress CMS, leveraging Yoast SEO for search optimization and Google Analytics for visitor tracking. Hosting is provided by WP Engine, a reputable managed WordPress host. The site uses modern HTML5 and responsive design techniques, ensuring good mobile optimization. Cookie consent is managed by CookieYes, a third-party consent management platform. JavaScript libraries include jQuery and Google Tag Manager scripts. Performance is moderate, with some caching and optimization evident via autoptimize plugin. No major technical debt or deprecated technologies were detected. Opportunities exist to improve accessibility and implement additional security headers. The site structure and metadata are well-formed, supporting SEO and social media sharing through Open Graph and JSON-LD structured data.
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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