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Security report for velux.de

VELUX · Manufacturing · Germany

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

Security score

73/100

Risk levelMedium

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

VELUX is a leading global manufacturer specializing in roof windows and related products, holding a strong market position as the world's largest producer in this sector. Their website targets a broad audience including end customers, professionals such as architects and craftsmen, and retail partners. The company offers a comprehensive range of products including automated roof windows, sun protection solutions, and accessories, supported by extensive customer service and project support tools. Technically, the website employs modern frameworks like Vue.js and integrates advanced search and analytics tools such as Algolia and Google Tag Manager, reflecting a mature digital infrastructure. The site is well-optimized for mobile devices and demonstrates good SEO and accessibility practices. Security-wise, the site uses HTTPS and secure external scripts but lacks explicit security headers and a public security policy, indicating room for improvement in security posture. Overall, the website is professional, trustworthy, and compliant with GDPR, providing clear contact information and legal documentation. Strategic recommendations include enhancing security headers, publishing a vulnerability disclosure policy, and improving incident response transparency to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 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 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. 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

  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 velux.de

This scan found 20 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
82
Security headers
30
Email security
85
DNS health
70
Network security
100
GDPR outside view
73
Average
73

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

VELUX operates primarily in the manufacturing and retail sectors, focusing on roof windows and complementary products. Their business model combines product manufacturing with direct customer engagement through online tools and services, including configuration and project support. The company targets both consumer and professional markets, including architects, craftsmen, and retailers. Their market position as a global leader is supported by a broad product portfolio and strong brand presence. The website reflects a well-established partnership ecosystem with dedicated commercial and press portals. Growth indicators include active marketing campaigns and state funding information for modernization projects. The company maintains a consistent brand image and provides extensive resources for professional customers, indicating a strategic focus on both B2C and B2B segments.

Security posture

The website demonstrates a solid security foundation with HTTPS encryption and no visible exposure of sensitive data. Use of reputable third-party services like Google Tag Manager and TeamViewer for co-browsing suggests controlled integration of external tools. However, the absence of explicit security headers such as Content-Security-Policy and X-Frame-Options reduces the overall security maturity. No public incident response or vulnerability disclosure information is available, which could hinder rapid response to security events. GDPR compliance is well addressed through comprehensive privacy and cookie policies. The security posture is good but could be enhanced by adopting additional best practices and transparency measures.

Recommendations

  1. Implement and configure security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web vulnerabilities.
  2. Publish a dedicated security policy and vulnerability disclosure page to improve transparency and encourage responsible reporting.
  3. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  4. Regularly audit and update third-party scripts and dependencies to avoid vulnerabilities.
  5. Enhance monitoring and logging capabilities to detect and respond to security incidents promptly.

Contact details published on the site

Addresses
Legal name
VELUX
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
VELUX
Description
VELUX ist der weltweit größte Hersteller von Dachfenstern aller Art mit einem umfangreichen Sortiment.
Key services
Manufacturing of roof windows, Automated roof window products, Sun protection and blinds, Roof balcony and terrace solutions, Daylight spots, Accessories and spare parts, Customer support and advisory services, Project support and configuration tools
Content quality
excellent
Branding
consistent

Technology

Stack
Vue.js, Google Tag Manager, TeamViewer Co-browsing, Algolia Search, Swiper.js
Frameworks
Vue.js
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager for analytics
  • Use of secure external scripts

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Algolia Search
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 rich content and no blocking mechanisms.
  2. Strong presence of structured data and SEO best practices.
  3. Comprehensive legal and privacy documentation available.
  4. Multiple contact channels including phone and physical address provided.
  5. Use of modern JavaScript frameworks and third-party services for enhanced UX.
  6. No signs of suspicious or malicious content.
  7. Social media presence is well integrated and consistent.
  8. Security headers not explicitly detected in provided data; opportunity for improvement.
Technical notes

Notes

The website is built on a modern technology stack featuring Vue.js for frontend rendering, Bloomreach as the CMS, and Algolia for search functionality. It leverages Google Tag Manager for analytics and TeamViewer for co-browsing support. The site is optimized for mobile devices with responsive design and uses Swiper.js for interactive sliders. Performance is moderate, with opportunities to improve load times by optimizing images and scripts. Accessibility features are present but could be further enhanced. SEO is well implemented with structured data (JSON-LD) and Open Graph tags. Hosting details are not explicitly identified, but the use of domainnetwork.se and domainnetwork.com for DNS suggests a professional DNS provider. Overall, the technical infrastructure supports a robust and user-friendly experience with room for performance and security 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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