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Security report for eurofiber.com

Eurofiber · Telecommunications · Netherlands

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

59/100

Risk levelMedium

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

Eurofiber is a leading European fiber-optic network provider specializing in delivering high-quality, reliable, and secure connectivity solutions across the Netherlands, Belgium, France, and Germany. The company supports digital transformation initiatives by offering extensive fiber-optic infrastructure, cloud connectivity, and security services tailored for business customers. Eurofiber is recognized as a vital infrastructure provider by the Dutch government, underscoring its importance in the digital economy. Technically, the website demonstrates a mature digital presence built on modern frameworks such as React and Next.js, with strong mobile optimization and performance. The use of advanced analytics and consent management tools reflects a commitment to privacy and data protection compliance. However, the absence of explicit security headers and a public security policy indicates areas for improvement in security transparency. From a security perspective, the site enforces HTTPS and employs cookie consent mechanisms, but lacks visible incident response or vulnerability disclosure information. The WHOIS data is unavailable, which reduces transparency but does not detract significantly from the site's legitimacy given the professional presentation and trust signals. Overall, Eurofiber presents a trustworthy and professional digital footprint with robust business offerings and a solid technical foundation. Strategic enhancements in security policy disclosure and WHOIS transparency would further strengthen its security posture and stakeholder confidence.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

5 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
    • 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 eurofiber.com

This scan found 24 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.

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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
52
Security headers
50
Email security
70
DNS health
75
Network security
40
GDPR outside view
68
Average
59

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

Eurofiber operates in the telecommunications sector, focusing on fiber-optic network infrastructure and cloud connectivity services. Its market position is strong in the Benelux region and parts of France and Germany, serving a diverse range of sectors including government, education, healthcare, finance, retail, and industry. The company leverages partnerships and a broad client base including major brands like Ubisoft and Verizon. Eurofiber's business model centers on providing open, scalable network infrastructure and managed services, enabling digital transformation for enterprises. Growth indicators include ongoing network expansion and recognition as vital infrastructure. The company maintains a professional brand image with consistent messaging and comprehensive service offerings.

Security posture

Eurofiber's security posture is solid with mandatory HTTPS enforcement and cookie consent management via Cookiebot, indicating GDPR compliance. The website does not expose sensitive data and uses secure forms. However, the absence of key security headers such as Content-Security-Policy and a public security or incident response policy limits transparency. No vulnerability disclosures or security.txt files were found, which are recommended best practices. The lack of WHOIS transparency is a minor concern but does not directly impact security. Overall, the security maturity is good but could be improved by publishing explicit security policies and implementing additional HTTP security headers.

Recommendations

  1. Implement and publish comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Create and maintain a public security policy and incident response page to enhance transparency and trust.
  3. Establish a vulnerability disclosure program or security.txt file to facilitate responsible reporting.
  4. Provide clear contact information for a Data Protection Officer or security contact to comply with GDPR and improve stakeholder confidence.
  5. Improve WHOIS transparency or provide justification for privacy protection to reduce suspicion and enhance legitimacy.

Contact details published on the site

Addresses
Legal name
Eurofiber
Registration number
34134377
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Eurofiber
Description
Eurofiber provides a future-proof, open fiber-optic network spanning over 76,000 kilometers across the Netherlands, Belgium, France, and Germany. They offer high-quality fiber-optic connections to over 12,000 locations, supporting digital transformation with reliable, safe, and secure networks.
Key services
Business Internet, SD WAN, WDM, Ethernet VPN, Managed Dark Fiber, Datacenter Services, Eurofiber DCspine, Cloudhub, Secure Cloud Connect, WDM Encrypted
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Matomo Analytics, Cookiebot, Leadinfo, SVG icons, ImageKit for image optimization
Frameworks
Next.js, React
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent management via Cookiebot
  • No exposed sensitive data in HTML
  • Secure forms with input validation

Analytics and tracking

Services
Matomo, Google Analytics via GTM, Leadinfo
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Bing Ads
Tracking pixels
Matomo, Google Analytics via GTM, Leadinfo
Marketing tools
Cookiebot
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 detected.
  2. Strong focus on fiber-optic network services and cloud connectivity.
  3. Multiple language versions available indicating international presence.
  4. Comprehensive privacy and cookie policies with consent management.
  5. No visible security policy or incident response information.
  6. WHOIS data unavailable, which reduces transparency but website trust signals are strong.
  7. Use of modern web technologies and analytics tools.
  8. Clear contact information and multiple communication channels.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, ensuring server-side rendering and good SEO performance. It uses ImageKit for optimized image delivery and integrates multiple analytics and marketing tools such as Matomo, Google Tag Manager, Cookiebot, and Leadinfo. The site is mobile-optimized with responsive design and fast loading times. No CMS was explicitly detected, suggesting a custom or headless approach. The technical stack supports scalability and performance but could benefit from enhanced security header implementation and more explicit hosting provider information.
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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