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Security report for thecrownestate.co.uk

The Crown Estate · Real Estate · United Kingdom

Low risk. 1 critical or high finding in DNS health.

Security score

85/100

Risk levelLow

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

The Crown Estate is a UK government-established independent commercial business managing significant land and property assets across the UK, including marine, property, and land sectors. Founded in 1961, it operates with a focus on national interests and sustainability, serving public sector stakeholders, investors, and communities. The website reflects a mature, professional entity with comprehensive content and clear branding. Technically, the site uses modern frameworks such as Next.js and React, with integrations for analytics and cookie consent, ensuring good performance, SEO, and accessibility. Security posture is strong with HTTPS, security headers, and no visible vulnerabilities, though explicit security policies and incident response details are not published. Overall, the site is trustworthy, compliant with privacy regulations, and safe for general audiences.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

1 finding rated critical or high. Fix these first.

  1. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Unregistered MX Record

      MX record points to unregistered domain: ms52576143.msv1.invalid

      What to do: Remove or fix MX record pointing to unregistered domain

      • RFC 5321 §5.1
      • NIS2 21(2)(i)
      • IR 2024/2690 12.4: Implementing Regulation (EU) 2024/2690, Annex point 12.4: Asset inventory
      • NIST CM-8: NIST SP 800-53 Rev. 5 CM-8: System Component Inventory

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

Keep watching thecrownestate.co.uk

This scan found 14 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
100
Security headers
80
Email security
85
DNS health
55
Network security
100
GDPR outside view
88
Average
85

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 Crown Estate holds a unique market position as a government-linked real estate and asset management entity, focusing on sustainable stewardship of UK land and marine resources. Its business model centers on long-term value creation beyond financial returns, targeting public sector interests and community benefits. The company leverages partnerships, such as with Windsor Great Park and recruitment platforms, to support its operations. The website's content and structure indicate a well-established organization with clear strategic priorities in sustainability and responsible business practices.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and cookie consent mechanisms. No exposed sensitive data or vulnerable libraries were detected. However, the absence of published security policies, incident response contacts, and vulnerability disclosure programs suggests room for improvement in transparency and readiness. Compliance with GDPR is evident through privacy and cookie policies. The security score is high but could be enhanced by publishing explicit security governance documents and providing direct security contact channels.

Recommendations

  1. Publish a dedicated security policy and incident response plan on the website to improve transparency.
  2. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Provide contact details for a Data Protection Officer or security team to enhance trust and compliance.
  4. Regularly audit third-party scripts and analytics tools to mitigate supply chain risks.
  5. Enhance accessibility features to meet or exceed WCAG standards for broader inclusivity.

Contact details published on the site

Addresses
Legal name
The Crown Estate
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
The Crown Estate
Description
The Crown Estate is an independent commercial business, created by Act of Parliament. We invest in and manage some of the UK’s most important assets, aiming to create significant value beyond financial return.
Key services
Marine asset management, Property and places management, Land management, Sustainability initiatives
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Azure Application Insights, CookiePro
Frameworks
Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • Cookie consent mechanism implemented
  • No exposed sensitive data detected

Analytics and tracking

Services
Google Tag Manager, Azure Application Insights
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Azure Application Insights
Marketing tools
CookiePro
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 no blocking or WAF challenges.
  2. WHOIS data is unavailable due to domain naming rules for 'www' subdomain in .co.uk.
  3. Strong privacy and cookie policies with consent mechanisms are implemented.
  4. No contact forms detected on the homepage; contact info is via phone and address.
  5. Social media presence is verified and linked in structured data.
  6. Use of modern web technologies and frameworks ensures good performance and SEO.
  7. No explicit security or incident response policies published on the homepage.
  8. No vulnerability disclosure or security.txt file found.
  9. Content is safe and suitable for general audiences.
  10. Website demonstrates high professionalism and trustworthiness.
Technical notes

Notes

The Crown Estate website is built on a modern React and Next.js stack, leveraging server-side rendering for performance and SEO benefits. It integrates Google Tag Manager and Azure Application Insights for analytics and monitoring, alongside CookiePro for consent management. The site is well-optimized for mobile devices and accessibility, with preloaded fonts and assets to improve load times. No CMS is explicitly detected, suggesting a custom or headless CMS approach. Hosting details are not explicit but likely enterprise-grade given the performance and security posture. The technical implementation supports a professional and scalable digital presence with minimal technical debt.
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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