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Security report for notus.de

NOTUS energy · Energy · Germany

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

57/100

Risk levelMedium

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

NOTUS energy is a well-established company specializing in wind and solar energy project development, financing, and management. The company operates internationally across 18 countries, offering a broad range of services from project conception to operation and asset management. Their website reflects a professional and comprehensive presentation of their business, targeting investors, project developers, municipalities, and other stakeholders in the renewable energy sector. The company positions itself as a strong partner in the transition to climate-friendly energy solutions. Technically, the website is built on Drupal CMS with modern web technologies including HTML5, CSS3, JavaScript, and mapping via Leaflet.js. The site is mobile-optimized, accessible, and SEO-friendly, with a moderate performance profile. Google Analytics is used with IP anonymization, and cookie consent mechanisms comply with GDPR requirements. From a security perspective, the site uses HTTPS and implements privacy-conscious analytics configurations. However, explicit security headers and incident response policies are not evident. No vulnerabilities or exposed sensitive data were detected in the content. The WHOIS data is consistent with the business claims, showing no privacy protection or suspicious registration patterns. Overall, the website demonstrates a high level of professionalism, compliance, and technical maturity, with room for improvement in explicit security policy disclosures and security header implementations.

Scanned

NIS2 and GDPR posture

GDPR outside view
43/ 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. 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 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 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';…

  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

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

Keep watching notus.de

This scan found 21 issues across 5 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
67
Security headers
40
Email security
100
DNS health
70
Network security
20
GDPR outside view
43
Average
57

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

NOTUS energy holds a strong market position in the renewable energy sector, focusing on wind and solar projects with significant installed and developing capacities. Their business model includes project development, EPC/GÜ services, financing, and asset management, targeting a diverse audience including investors, municipalities, landowners, and operators. The company’s international footprint across Europe and the Americas indicates growth and diversification. The website’s detailed project references and multilingual support enhance their competitive advantage. Their partnership ecosystem includes various stakeholders in the renewable energy value chain, supporting sustainable growth and innovation.

Security posture

The website exhibits a mature security posture with HTTPS enforced and privacy-respecting analytics configurations. The presence of a cookie consent banner with opt-in mechanisms aligns with GDPR compliance. However, the absence of explicit security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options suggests potential areas for enhancement. No incident response or security policy pages were found, which could improve transparency and readiness. No vulnerabilities or sensitive data exposures were identified. Overall, the security posture is solid but could benefit from formalized policies and additional technical controls.

Recommendations

  1. Implement security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish explicit security and incident response policies to improve transparency and stakeholder trust.
  3. Consider adding a security.txt file to facilitate responsible vulnerability disclosure.
  4. Regularly audit third-party scripts and libraries for vulnerabilities and update them promptly.
  5. Enhance data retention and privacy policy details to further strengthen GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NOTUS energy
Description
NOTUS energy is a strong partner for wind and solar energy projects, offering expertise in project idea, financing, environmental protection, permitting, construction, operation, and asset management. They operate internationally in 18 countries with significant installed and developing capacities in wind and solar energy.
Key services
Wind energy project development, Solar energy project development, Project financing and calculation, Environmental and human protection, Permitting and approvals, Construction and grid connection, Operations management, General contractor services, Artificial intelligence applications, Asset management
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Google Analytics, Leaflet.js (mapping), Normalize.css
Frameworks
Drupal CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS with anonymized IP in Google Analytics
  • Cookie consent with opt-in mechanism
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

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 no blocking or WAF challenges.
  2. Strong focus on renewable energy projects with international footprint.
  3. Comprehensive cookie consent and privacy policy in place.
  4. No explicit security or incident response policies published.
  5. Use of Drupal CMS with modern frontend technologies.
  6. Social media presence across major platforms.
  7. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on Drupal CMS, leveraging modern frontend technologies such as HTML5, CSS3, and JavaScript. It uses Normalize.css for CSS normalization and Leaflet.js for interactive mapping features. Google Tag Manager and Google Analytics are integrated with IP anonymization for user tracking. The site is mobile-optimized and accessible, with good SEO practices including canonical links and Open Graph metadata. Hosting is managed via domaincontrol.com DNS services. Performance is moderate, with potential for optimization in loading times and resource management. The technical infrastructure supports a professional and user-friendly experience aligned with business goals.
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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