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Security report for res-group.com

RES · Energy · N/a

Medium risk. 5 critical or high findings in Security headers and SSL/TLS.

Security score

68/100

Risk levelMedium

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

RES is a globally recognized leader in renewable energy solutions, boasting over 40 years of experience. The company offers a comprehensive suite of services including development, construction, asset management, operations and maintenance, consultancy, and innovative digital solutions. Their market position as the world's largest independent renewable energy company is supported by a professional and content-rich website targeting industry stakeholders, investors, and communities. Technically, the website is built on WordPress with modern frameworks like Bootstrap and integrates advanced analytics and consent management tools, reflecting a mature digital infrastructure. Security posture is solid with HTTPS enforcement and cookie consent mechanisms, though the absence of explicit security policies and incident response contacts suggests room for improvement. Overall, the website demonstrates high professionalism and trustworthiness, though the lack of WHOIS transparency slightly impacts domain legitimacy assessment.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 100 · Low
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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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. 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 res-group.com

This scan found 23 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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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
57
Security headers
15
Email security
80
DNS health
70
Network security
100
GDPR outside view
88
Average
68

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

RES operates in the energy sector with a focus on renewable technologies such as wind, solar, energy storage, and green hydrogen. Their business model revolves around providing end-to-end renewable energy solutions globally, serving landowners, investors, and communities. The company leverages digital tools and consultancy services to enhance project delivery and asset management. Their extensive service portfolio and global reach position them strongly in a competitive market. The website's content and social media presence indicate a well-established brand with consistent messaging and strong trust signals. However, the missing WHOIS data introduces a minor risk factor in domain transparency. No direct partnerships or subsidiaries were identified from the website content.

Security posture

The website employs HTTPS and integrates cookie consent tools compliant with GDPR, indicating a commitment to user privacy and security. Tracking and analytics are managed through reputable services like Google Tag Manager and Microsoft Clarity. However, the absence of published security policies, incident response contacts, and security headers suggests gaps in transparency and defense-in-depth strategies. No vulnerabilities or exposed sensitive data were detected in the HTML content. The security posture is adequate for a corporate website but could be enhanced by publishing formal security documentation and implementing additional HTTP security headers.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and compliance.
  2. Provide clear incident response contact information to improve transparency and trust.
  3. Implement and configure HTTP security headers such as Content-Security-Policy and X-Frame-Options.
  4. Regularly audit third-party scripts and tracking tools for vulnerabilities and privacy compliance.
  5. Enhance WHOIS domain registration transparency or provide justification for privacy protection.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
RES
Description
We are RES, the world's largest independent renewable energy company with 40 years of experience delivering global renewable solutions.
Key services
Development, Construction, Asset management, Operations and maintenance, Consultancy and advisory, Digital services and solutions
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, jQuery, Bootstrap 4.6.2, Google Tag Manager, Microsoft Clarity, OneTrust Cookie Consent
Frameworks
Bootstrap
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics (via GTM), Microsoft Clarity, LinkedIn Insight
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Clarity, LinkedIn Insight Tag
Marketing tools
OneTrust Cookie Consent
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is professionally designed and well-structured
  2. Content is comprehensive and relevant to renewable energy sector
  3. No signs of malicious or suspicious content
  4. Good privacy and cookie compliance mechanisms in place
  5. WHOIS data is missing or unavailable, which is a concern for domain transparency
  6. No explicit security policy or incident response information publicly available
Technical notes

Notes

The website is built on WordPress CMS using Bootstrap 4.6.2 and jQuery, ensuring responsive design and good accessibility. It integrates multiple analytics and marketing tools including Google Tag Manager, Microsoft Clarity, and LinkedIn Insight Tag, managed through a cookie consent mechanism by OneTrust. Performance is moderate with room for optimization. The site is mobile-optimized and SEO-friendly with proper meta tags and structured data (JSON-LD). No hosting provider details were identified from the content. Technical risks are minimal but include reliance on multiple third-party scripts which require ongoing security monitoring.
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

Earlier scans of this domain

  1. 68/100Medium30 findingsView report
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