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Security report for xl-byg.dk

Xl-byg a.m.b.a. · Building materials · Denmark

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

71/100

Risk levelMedium

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

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

6 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

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • 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: Facebook, LinkedIn, YouTube

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

  2. 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';…

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

Keep watching xl-byg.dk

This scan found 18 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.

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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
82
Security headers
35
Email security
82
DNS health
85
Network security
100
GDPR outside view
40
Average
71

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

XL-BYG operates as a major player in the Danish retail sector for building materials, combining physical stores with a growing e-commerce platform. Their competitive advantage lies in local presence, expert advice, and a broad product portfolio catering to both DIY enthusiasts and professional tradespeople. Revenue streams include direct sales, financing via branded credit cards, and value-added services like Click & Collect. The company targets geographically dispersed customers with a focus on quality, price competitiveness, and service reliability. Partnerships with certification bodies and sustainability initiatives enhance brand reputation. Growth indicators include digital expansion and seasonal promotional campaigns. The company maintains a strong ecosystem of suppliers and local stores, reinforcing market penetration and customer loyalty.

Security posture

XL-BYG exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and no visible exposure of sensitive data. The website uses modern frameworks that support secure coding practices. However, the absence of a publicly available security policy and incident response contact limits transparency in security governance. There is no evidence of a vulnerability disclosure program or security.txt file, which could be areas for improvement. Privacy compliance is strong, with GDPR-aligned policies and consent mechanisms in place. The use of third-party scripts like Google Tag Manager is managed with privacy considerations. Overall, the security culture appears proactive but could benefit from enhanced communication and formalized security processes.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Establish and publicize an incident response contact channel for security issues.
  3. Implement a vulnerability disclosure policy and consider hosting a security.txt file.
  4. Enhance website accessibility to meet higher standards for all users.
  5. Conduct regular audits of third-party scripts and dependencies to mitigate vulnerabilities.

Contact details published on the site

Addresses
Legal name
XL-BYG a.m.b.a
Registration number
26864100
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
XL-BYG a.m.b.a
Description
XL-BYG is Denmark's second largest building materials chain with 79 stores, offering a broad range of building and garden products through both physical stores and an online webshop. They provide professional advice and services to both private and professional customers.
Key services
Building materials sales, Professional advice, Online webshop, Click & Collect, Financing via XL-BYG card
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, WebP images, Google Tag Manager
Frameworks
Next.js
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure cookies
  • No exposed sensitive data in HTML
  • Use of CSP headers

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
CookieInformation
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 rich content
  2. Strong presence of privacy and cookie policies with consent mechanisms
  3. Clear and multiple contact channels including email, phone, and physical addresses
  4. Use of modern web technologies and frameworks
  5. Good security posture with HTTPS and security headers
  6. No signs of blocking or WAF interference
  7. Business information is transparent and consistent with WHOIS data
  8. Presence of recognized certifications and trust marks
  9. Moderate use of tracking and analytics with privacy compliance
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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xl-byg.dk security report: 71/100, medium risk | Guard