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Security report for ree.es

Red Eléctrica · Energy · Spain

Medium risk. 7 critical or high findings in GDPR outside view and Security headers.

Security score

56/100

Risk levelMedium

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

Red Eléctrica is the Spanish Transmission System Operator (TSO) responsible for the operation, development, and maintenance of the national electricity grid. The company plays a critical role in ensuring the quality and security of electricity supply across Spain and supports the country's ecological transition by integrating renewable energy sources and developing infrastructure projects. The website reflects a mature digital presence with comprehensive content, clear navigation, and professional design, targeting energy sector stakeholders and the general public interested in electricity data and sustainability. Technically, the site is built on Drupal 10 with modern front-end libraries and uses Akamai and Imperva for DNS and CDN services. However, a critical security shortcoming is the absence of a valid SSL certificate and proper HTTPS configuration, which significantly impacts the site's security posture. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. Business credibility is strong, supported by consistent branding, corporate governance links, and trust signals. Overall, the site scores well in content and business credibility but requires urgent improvements in SSL/TLS security to enhance trust and protect users.

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

7 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

  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';…

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  • TLS certificates and expiry
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  • 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
50
Security headers
30
Email security
75
DNS health
80
Network security
100
GDPR outside view
0
Average
56

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

Red Eléctrica holds an essential position in Spain's energy sector as the national TSO and is a subsidiary of Redeia. Its business model focuses on electricity transmission network operation, client services for market participants, and advancing the ecological transition through infrastructure and data services. The company targets a broad audience including energy professionals, market participants, and consumers. The website's extensive content, including sustainability reports, project details, and data portals, indicates a transparent and customer-focused approach. Partnerships with Redeia and employment portals suggest a well-established ecosystem. The company's longevity since 1985 and large scale operations underscore its market leadership and stability.

Security posture

The website demonstrates moderate security maturity with proper DNS configurations including SPF and DMARC records, and security headers like HSTS present but not fully enabled. Cookies are set with HttpOnly and Secure flags. However, the lack of a valid SSL certificate and disabled TLS protocols represent critical vulnerabilities that expose users to risks such as data interception and man-in-the-middle attacks. The absence of OCSP stapling and session resumption further degrade security and performance. No explicit security or incident response policies are found on the site, indicating potential gaps in transparency and readiness. Overall, the security posture requires immediate remediation of SSL/TLS issues and enhancement of security best practices to meet industry standards and regulatory compliance.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Enable modern TLS protocols (TLS 1.2 and TLS 1.3) and configure strong cipher suites.
  3. Activate and configure HSTS with includeSubDomains and preload options.
  4. Implement OCSP stapling and session resumption mechanisms to improve security and performance.
  5. Publish clear security policies and incident response procedures to enhance transparency and trust.
Technical notes

Notes

The website is built on Drupal 10 CMS, leveraging Bootstrap 5.3.1 for responsive design, Highcharts for data visualization, and Font Awesome for icons. It uses Akamai for DNS and Imperva as CDN and WAF provider, although no blocking was detected. The site includes advanced front-end libraries such as AOS for animations and AddToAny for sharing. Google Tag Manager and Cookiebot are used for analytics and cookie consent management. Despite a rich technology stack, performance metrics are missing or zero, indicating potential monitoring gaps. Mobile optimization and accessibility are good, with proper meta tags and SEO practices. The main technical risk is the absence of valid SSL/TLS, which undermines secure communications and user trust.
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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