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Security report for suewag.com

Süwag · Energy · Germany

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

Security score

73/100

Risk levelMedium

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

Süwag is a large regional energy company in Germany specializing in electricity, gas, green energy, and water services. The company operates through multiple subsidiaries including Süwag Vertrieb AG & Co. KG and Syna GmbH, focusing on sustainable energy solutions and regional partnerships. Their website demonstrates a mature digital presence with modern technologies such as Adobe Experience Manager and Usercentrics for consent management. The site is well-designed, mobile-optimized, and provides comprehensive information for customers, partners, and job seekers. Security posture is good with HTTPS and consent mechanisms, though explicit security policies and incident response details are not publicly disclosed. WHOIS data is unavailable, which slightly reduces domain trustworthiness but the professional presentation and certifications support legitimacy. Overall, Süwag presents as a credible and established energy provider with a strong regional focus.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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. 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 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 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

Need hands-on remediation? Email guard@offseq.com

Keep watching suewag.com

This scan found 18 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
95
Security headers
55
Email security
85
DNS health
70
Network security
100
GDPR outside view
35
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

Süwag holds a strong market position in the German energy sector with diversified offerings including green energy projects, network operations, and municipal products. Their business model integrates direct customer supply, regional engagement, and sustainability initiatives. The company leverages partnerships and subsidiaries to extend its service portfolio. The website content and certifications indicate a focus on quality and compliance, targeting residential customers, municipalities, and business partners. The presence of a dedicated careers portal and extensive corporate information suggests a stable and growth-oriented organization.

Security posture

The website employs HTTPS and integrates a consent management platform (Usercentrics), indicating compliance with privacy regulations such as GDPR. Security headers are not explicitly confirmed but likely present given the professional setup. No vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of publicly available security policies, incident response contacts, or vulnerability disclosure programs suggests room for improvement in transparency and readiness. The WHOIS data is not publicly available, which may be a privacy measure but reduces trust signals. Overall, the security posture is solid but could benefit from enhanced policy disclosures.

Recommendations

  1. Publish explicit security and privacy policies including incident response and vulnerability disclosure information.
  2. Verify and display security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Improve WHOIS transparency or provide domain registration details to enhance trust.
  4. Regularly audit third-party scripts and tracking services for security and privacy compliance.
  5. Enhance contact information with direct security or abuse contacts to improve incident handling.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Süwag
Description
Strom, Gas, Wärme, Wasser: Energie ist unsere Aufgabe und unsere Leidenschaft.
Key services
Electricity supply, Gas supply, Green energy solutions, Network operation, Energy consulting, Products for municipalities, Electromobility
Content quality
excellent
Branding
consistent

Technology

Stack
Adobe Experience Manager, Usercentrics (consent management), Google Tag Manager, EON UI Components, JavaScript ES modules
Frameworks
Adobe Helix RUM, Usercentrics CMP
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Usercentrics Consent Management
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
  2. Professional corporate design and navigation
  3. Strong focus on energy sector and regional services
  4. Use of modern web technologies and consent management
  5. WHOIS data unavailable, reducing domain trust score
  6. No signs of malware or phishing
  7. No explicit security or incident response policies found
  8. Multiple subsidiaries and partner links present
  9. Cookie consent implemented via Usercentrics
  10. No adult or questionable content detected
Technical notes

Notes

The website is built on Adobe Experience Manager, utilizing modern web components and ES modules for UI. It integrates Usercentrics for GDPR-compliant consent management and Google Tag Manager for analytics. The site is mobile-optimized with responsive design and uses structured navigation for clarity. Performance is moderate, with potential for optimization in loading times. No CMS or hosting provider details were explicitly found. The technical stack reflects a mature enterprise-grade infrastructure suitable for a large energy company.
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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