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Security report for albert-bayer.de

Albert Bayer GmbH · Energy · Germany

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

62/100

Risk levelMedium

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

Albert Bayer GmbH is a well-established German family business specializing in comprehensive home renovation services, including professional bathroom remodeling, sustainable heating solutions, and innovative electrical installations. With over 100 years of experience and a strong partner network, the company positions itself as a reliable one-stop provider for various home improvement needs. The website reflects a professional and consistent brand image targeting a broad audience interested in energy-efficient and modern home solutions. Technically, the site uses legacy JavaScript libraries alongside modern tools like Klaro for cookie consent, hosted on a domain controlled by a reputable registrar. Security posture is adequate with HTTPS enforced and basic security best practices, though some outdated libraries present potential vulnerabilities. Privacy compliance is addressed with a clear privacy policy and cookie consent mechanism, but no explicit security or incident response policies are found. Overall, the site is trustworthy, well-structured, and provides clear contact information and partner affiliations.

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 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
  • DNS records
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  • 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
15
Email security
85
DNS health
60
Network security
100
GDPR outside view
43
Average
62

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 operates in the energy sector with a focus on sustainable heating and home renovation services. Its business model centers on providing integrated solutions through direct services and a network of trusted partners, enhancing customer convenience and service quality. The firm targets residential customers seeking modern, energy-efficient home upgrades. The presence of a customer testimonial widget and detailed service descriptions supports credibility and customer engagement. The partnership ecosystem includes regional specialists and well-known heating technology brands, indicating strong local market integration. Growth indicators include active news updates and service expansions like the Hauswerker-App. The company maintains a medium-sized profile with a long heritage, emphasizing reliability and personalized service.

Security posture

The website demonstrates a moderate security maturity level with enforced HTTPS and a cookie consent mechanism aligned with GDPR requirements. However, the use of an outdated jQuery version (1.8.3) introduces potential security risks due to known vulnerabilities in legacy libraries. No advanced security headers were detected, and there is no visible security policy or incident response information, which could be improved to enhance transparency and readiness. The absence of a security.txt file or vulnerability disclosure policy limits external reporting channels. Forms have basic validation but could benefit from enhanced security controls. Overall, the security posture is functional but could be strengthened to mitigate risks and improve compliance.

Recommendations

  1. Update all JavaScript libraries, especially jQuery, to current supported versions to reduce vulnerability exposure.
  2. Implement comprehensive security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a clear security policy and incident response contact information to improve transparency and preparedness.
  4. Add a security.txt file to facilitate responsible vulnerability disclosure.
  5. Enhance accessibility features to meet modern standards and improve user experience for all visitors.

Contact details published on the site

Addresses
Legal name
Albert Bayer GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Albert Bayer GmbH
Description
Das Angebot der Albert Bayer GmbH umfasst die saubere, professionelle Badsanierung, nachhaltige Heizungslösungen nach neuestem Stand der Technik und innovative Elektroinstallationen. Darüber hinaus decken wir durch ein umfassendes Partnernetzwerk praktisch alle Gewerke im Haus ab, vom Schreiner bis zum Fliesenleger.
Key services
Badsanierung, Heizungslösungen (Wärmepumpe, Biomasse, Solar, Brennwerttechnik), Elektroinstallationen, Wartung & Service, Notdienst
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.8.3, Modernizr 2.6.1, Slimbox2, Klaro cookie consent
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS usage
  • Cookie consent mechanism
  • No exposed sensitive data in HTML
  • Form input validation (basic)

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
meinungsmeister.de
Marketing tools
meinungsmeister.de widget
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is in German and professionally presented.
  3. Clear business focus on home renovation, heating, and electrical services.
  4. Cookie consent implemented via Klaro.
  5. Contact information is prominently displayed and complete.
  6. Use of some outdated JavaScript libraries (jQuery 1.8.3).
  7. No explicit security or incident response policies found.
  8. No terms of service page detected.
  9. Social media presence limited to Instagram.
  10. Partner network is well represented with external links.
Technical notes

Notes

The website is built using classic web technologies including jQuery 1.8.3, Modernizr 2.6.1, and Slimbox2 for UI components, combined with Klaro for cookie consent management. The hosting is managed via DomainControl nameservers, likely GoDaddy infrastructure. Performance is moderate with lazy loading implemented for images. The site is mobile optimized with responsive design and includes SEO best practices such as meta keywords, description, canonical links, and hreflang tags. However, the reliance on outdated JavaScript libraries poses a technical debt and security risk. There is no detected CMS, suggesting a custom or static site architecture. Overall, the technical implementation is solid but would benefit from modernization and enhanced security controls.
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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