Skip to main content

Security report for coulonstone.com

Coulon Stone Ltd · Real Estate · United Kingdom

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

65/100

Risk levelMedium

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

Coulon Stone Ltd is a well-established family-run stonemasonry business based in Buckinghamshire, UK, specializing in bespoke natural and engineered stone surfaces for residential and commercial projects. With over 35 years of expertise, the company offers a comprehensive range of services including kitchen worktops, fireplaces, bathrooms, staircases, flooring, bespoke stone projects, and commercial installations. Their market position is strong locally, supported by a high customer satisfaction rating and professional presentation. Technically, the website is built on the Webflow platform, leveraging modern web technologies such as Google Tag Manager, CookieYes for consent management, and Google Fonts. The site is well-optimized for performance, mobile responsiveness, accessibility, and SEO. The use of structured data enhances search engine understanding and user experience. From a security perspective, the site employs HTTPS with good SSL configuration and a robust cookie consent mechanism. However, there is room for improvement by enabling DNSSEC, adding security headers, and publishing formal security policies or incident response information. No critical vulnerabilities or exposed sensitive data were detected. Overall, the website demonstrates a high level of professionalism, trustworthiness, and compliance with privacy regulations. The domain registration data aligns well with the business history, reinforcing legitimacy. Strategic recommendations include enhancing DNS security, publishing security policies, and further hardening HTTP headers to improve security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 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

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 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';…

  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
    • 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

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

Keep watching coulonstone.com

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.

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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
49
Security headers
30
Email security
70
DNS health
60
Network security
100
GDPR outside view
83
Average
65

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

Coulon Stone operates in the bespoke stone fabrication and installation sector, targeting both homeowners and professional clients such as architects and builders in Buckinghamshire and surrounding regions. Their competitive advantage lies in their long-standing experience, comprehensive service offering, and strong local reputation. The business model combines B2C and B2B elements, with revenue streams from custom residential projects and commercial contracts. The company maintains a focused partnership ecosystem with leading stone suppliers worldwide. Growth indicators include a large portfolio of completed projects and positive client testimonials. The website supports their market presence with detailed service descriptions and high-quality imagery.

Security posture

The current security maturity level is moderate to good. The site uses HTTPS and a consent management platform to comply with privacy laws. No critical security issues or vulnerabilities were found in the public-facing content. However, the absence of DNSSEC and security headers such as Content Security Policy and HSTS represents an opportunity for improvement. There is no published incident response or security policy, which could impact transparency and readiness. Data protection practices appear adequate with cookie consent and no exposed sensitive data. Overall, the security culture is implied to be responsible but could benefit from formal documentation and enhanced technical controls.

Recommendations

  1. Enable DNSSEC on the domain to protect against DNS spoofing and improve DNS security.
  2. Implement additional HTTP security headers including Content Security Policy (CSP), Strict-Transport-Security (HSTS), and X-Content-Type-Options.
  3. Publish a dedicated security policy and incident response page to improve transparency and preparedness.
  4. Add a security.txt file at the root domain to facilitate vulnerability disclosure and communication.
  5. Regularly review and update third-party scripts and libraries to mitigate risks from outdated components.

Contact details published on the site

Addresses
Legal name
Coulon Stone Ltd
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Coulon Stone Ltd
Description
Bespoke stonemasons in Buckinghamshire specialising in natural and engineered stone surfaces for kitchens, bathrooms, fireplaces, staircases and flooring. Family-run business with over 35 years of expertise, handling design through to installation.
Key services
Kitchen Worktops, Fireplaces & Hearths, Bathrooms, Staircases, Flooring, Bespoke Stone Projects, Commercial Projects
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow CMS, Google Tag Manager, jQuery, Google Fonts, CookieYes Consent Management
Frameworks
Webflow
Platforms
Webflow Hosting
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enabled
  • Cookie consent banner with granular controls
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected

Analytics and tracking

Services
Google Analytics, YouTube embedded video tracking
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel (implied by _fbp cookie)
Marketing tools
CookieYes
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well maintained.
  2. Strong focus on bespoke natural stone services with detailed service pages.
  3. Comprehensive cookie consent mechanism implemented with CookieYes.
  4. No signs of phishing, malware, or suspicious content.
  5. Contact information is clearly presented and consistent across site and structured data.
  6. No explicit security policy or incident response information published.
  7. No DNSSEC enabled, which is a minor security improvement opportunity.
Technical notes

Notes

The website is hosted on Webflow, utilizing a modern tech stack including jQuery, Google Tag Manager, and CookieYes for cookie consent. The site loads efficiently with optimized images and responsive design. SEO is supported by comprehensive meta tags, Open Graph data, and structured JSON-LD schema for local business and services. Accessibility features are present but could be further audited for compliance. The technical infrastructure is stable and well-maintained, with no signs of technical debt or deprecated technologies. Opportunities exist to enhance security headers and DNS configuration to further strengthen the technical posture.
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

Reviews of this site

Share your experience with coulonstone.com. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review coulonstone.com.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.