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Security report for stiebel-eltron.sk

STIEBEL ELTRON GmbH & Co. KG · Energy · Slovakia

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

53/100

Risk levelMedium

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

STIEBEL ELTRON GmbH & Co. KG operates a localized Slovak website offering advanced heating, ventilation, and renewable energy solutions including heat pumps, water heaters, and rekuperation units. The company is positioned as a technological leader in the energy sector with a strong focus on ecological and energy-efficient products. The website targets end customers, professional partners, and installers, providing comprehensive product information, partner zones, and training resources. Technically, the site uses modern JavaScript libraries, a custom or enterprise CMS, and integrates Piwik PRO analytics with privacy controls. Security posture is good with HTTPS enforced and cookie consent mechanisms in place, though explicit security policies and incident response contacts are not found. The domain registration is consistent with the business identity, indicating high legitimacy. Overall, the website is professional, well-structured, and compliant with GDPR requirements.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

8 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 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

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

Keep watching stiebel-eltron.sk

This scan found 22 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
62
Security headers
70
Email security
85
DNS health
70
Network security
20
GDPR outside view
10
Average
53

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

The company holds a strong market position as a technological leader in heating and renewable energy solutions, serving a broad customer base including homeowners, architects, and developers. Its business model revolves around manufacturing and distributing energy-efficient heating and ventilation products. The presence of a partner zone and training webinars indicates a well-developed partner ecosystem and commitment to customer education. The website content and linked domains reflect a mature, international business with localized operations in Slovakia. The company leverages digital marketing and analytics tools to optimize user engagement and maintain compliance with privacy regulations.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, cookie consent banners, and anonymized analytics tracking. However, it lacks visible explicit security policies or incident response contact channels, which could be improved to enhance transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the HTML content. The use of modern JavaScript libraries and analytics tools is balanced with privacy considerations. Security headers are implied but not explicitly confirmed, suggesting room for enhancement in HTTP header configurations.

Recommendations

  1. Publish a dedicated security policy page including incident response contact information.
  2. Implement and verify comprehensive security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Regularly audit third-party scripts and analytics integrations for vulnerabilities and privacy compliance.
  4. Enhance accessibility features to improve compliance and user experience for all users.
  5. Maintain transparency on data retention policies and provide clear user options for data management.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
STIEBEL ELTRON GmbH & Co. KG
Description
STIEBEL ELTRON je technologickým lídrom v oblasti tepelných čerpadiel, rekuperácie a ohrievačov vody ponúkajúci iba tie najkvalitnejšie produkty, s ktorými ušetríte.
Key services
Heat pumps, Ventilation and heat recovery units, Water heaters, Electric heating devices, Partner support and training
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, RequireJS, Piwik PRO analytics, Owl Carousel, Swiper.js, Modernizr
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of secure analytics with anonymization options

Analytics and tracking

Services
Piwik PRO
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Piwik PRO
Marketing tools
Piwik PRO Tag Manager
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is comprehensive and relevant to the energy and heating sector.
  3. Privacy and cookie policies are present and GDPR compliant.
  4. No explicit security policy or incident response contact found.
  5. Use of modern analytics with privacy options.
  6. No signs of malicious or suspicious content.
  7. Multiple localized partner domains linked.
  8. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on a modern technology stack including RequireJS, Owl Carousel, Swiper.js, and Modernizr, likely managed via an enterprise CMS such as Adobe Experience Manager. It integrates Piwik PRO for analytics with privacy-focused configurations. The site is mobile optimized with responsive design and good SEO practices including meta tags and Open Graph data. Performance is moderate, with potential for optimization in loading times. The technical infrastructure supports a professional and scalable digital presence suitable for a large enterprise in the energy sector.
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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