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Security report for reintel.es

Reintel · Energy · Spain

Medium risk. 6 critical or high findings in GDPR outside view and Security headers.

Security score

69/100

Risk levelMedium

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

Reintel is the largest neutral operator of dark fiber infrastructure in Spain, operating as a subsidiary of Grupo Red Eléctrica (redeia). The company provides critical telecommunications infrastructure services including long-distance fiber networks, dedicated cables, equipment hosting, and customized connectivity solutions. Their market position is strong within the Spanish energy and telecommunications sectors, serving businesses requiring extensive fiber optic connectivity. The website reflects a mature digital presence built on Drupal 10, integrating modern technologies such as Google Tag Manager, Cookiebot for consent management, and Google Maps API. Despite a slow page load time, the site offers excellent content quality, clear navigation, and good mobile optimization. Security posture is solid with HTTPS, valid SSL certificates, and OCSP stapling, though improvements are recommended in DNS security and HTTP security headers. Privacy compliance is robust with comprehensive privacy and cookie policies and active consent mechanisms. Overall, Reintel demonstrates a professional and trustworthy online presence aligned with its business stature.

Scanned

NIS2 and GDPR posture

GDPR outside view
0/ 100 · Critical
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

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

  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 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';…

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This scan found 19 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
87
Security headers
70
Email security
75
DNS health
80
Network security
100
GDPR outside view
0
Average
69

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

Reintel's business model focuses on providing neutral dark fiber infrastructure, enabling connectivity across Spain with over 52,000 km of fiber and more than 1,300 strategic sites. Their competitive advantage lies in neutrality, extensive network capillarity, and technical support availability 24/7. The company targets telecommunications clients and enterprises needing reliable fiber networks. Their parent company, Grupo Red Eléctrica, supports their market credibility. The website content and linked domains confirm a strong partnership ecosystem and a focus on transparency and compliance. Growth indicators include a comprehensive service portfolio and detailed infrastructure data. The digital ecosystem integrates advanced consent management and analytics, supporting data-driven business insights.

Security posture

Reintel exhibits a mature security posture with enforced HTTPS using TLS 1.3 and TLS 1.2, valid multi-domain SSL certificates, and OCSP stapling enabled. SPF and DMARC DNS records are configured, though DMARC policy is set to 'none', suggesting room for improvement. The absence of DNSSEC and CAA records indicates potential DNS and certificate issuance risks. No critical vulnerabilities such as Heartbleed or FREAK were detected. The website employs cookie consent mechanisms compliant with GDPR, enhancing privacy protection. However, no explicit security or incident response policies are published, and no dedicated security contact emails were found. Security headers beyond SPF/DMARC are not evident, suggesting further hardening opportunities. Overall, the security posture is good but could benefit from enhanced DNS security and stricter email policies.

Recommendations

  1. Enable HTTP Strict Transport Security (HSTS) with includeSubDomains and preload to enforce HTTPS and prevent downgrade attacks.
  2. Implement DNSSEC to secure DNS queries and prevent spoofing or cache poisoning.
  3. Add Certification Authority Authorization (CAA) DNS records to restrict which CAs can issue certificates for the domain.
  4. Strengthen DMARC policy from 'none' to 'quarantine' or 'reject' to improve email spoofing protection.
  5. Publish a clear security policy and incident response contact information to enhance transparency and readiness.
Technical notes

Notes

The website is built on Drupal 10 CMS, leveraging modern web technologies including Google Tag Manager for analytics and Cookiebot for GDPR-compliant cookie consent management. Hosting is via Akamai CDN infrastructure with multiple nameservers distributed globally. The SSL certificate covers a broad set of related domains and subdomains, valid for 99 more days. Performance is suboptimal with a load time of approximately 21.6 seconds and a large page size (~1.4MB), indicating potential optimization opportunities. The site is mobile-optimized with good accessibility and SEO practices. No WAF or blocking mechanisms were detected, allowing full content access. The technical stack is modern but could improve performance and security header implementation.
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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