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Security report for ekrebs.de

Ernst Krebs GmbH aus Gauting bei München · Energy · Germany

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

70/100

Risk levelMedium

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

Ernst Krebs GmbH is a well-established family-owned business based in Gauting near Munich, Germany, specializing in heating, sanitary, bathroom, and electrical installation services. Founded in 1910, the company has over 115 years of experience and operates as a master craftsman business serving residential and commercial clients. Their website reflects a professional and consistent brand image, targeting customers seeking high-quality home and building technology solutions. Technically, the website is built on WordPress using the Avada theme, incorporating modern plugins such as Yoast SEO and Cookiebot for SEO and privacy compliance. The site is mobile-optimized and provides clear navigation and contact information, including email and phone contacts, as well as social media links on Facebook and Instagram. Security-wise, the site uses HTTPS and includes bot protection via Google reCAPTCHA and tracking via Facebook Pixel, with a cookie consent mechanism in place. However, it lacks explicit security headers and published security or incident response policies. Overall, the website is safe, professional, and compliant with basic privacy requirements, though it could improve by adding a privacy policy page and security disclosures.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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

4 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

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

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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
77
Security headers
15
Email security
70
DNS health
60
Network security
100
GDPR outside view
95
Average
70

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 local market position as a trusted family business with a long history in the energy and building services sector. Their business model focuses on providing specialized installation and renovation services, leveraging their expertise in heating, sanitary, electrical, and bathroom design. The target customer segment includes homeowners and property managers in the Munich area. The website's integration of social media and SEO tools indicates a moderate digital maturity and marketing awareness. No evidence of partnerships or subsidiaries was found in the data. The company emphasizes quality, 3D bathroom planning, barrier-free bathrooms, and master craftsmanship as competitive advantages. The absence of detailed registrant WHOIS data limits full verification of domain age but does not detract from the business credibility.

Security posture

The website demonstrates a moderate security posture with HTTPS enabled and use of Google reCAPTCHA to mitigate automated abuse. Cookie consent is managed via Cookiebot, supporting GDPR compliance. However, the absence of key security headers such as Content-Security-Policy and Strict-Transport-Security reduces the overall security robustness. No vulnerabilities or exposed sensitive data were detected in the HTML content. The lack of a published security policy or incident response contact limits transparency and preparedness. Recommendations include implementing security headers, publishing security and incident response policies, and conducting regular security audits of third-party scripts. Overall, the security posture is adequate for a small business website but can be enhanced to meet higher standards.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and Strict-Transport-Security.
  2. Publish a clear privacy policy and terms of service pages accessible from the website footer or main navigation.
  3. Add a security policy and incident response contact information to improve transparency and readiness.
  4. Regularly review and update third-party scripts and plugins to mitigate vulnerabilities.
  5. Enhance accessibility features to improve compliance and user experience for all visitors.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Ernst Krebs GmbH aus Gauting bei München
Description
Seit dem Jahr 1910 entwickelt die Ernst Krebs GmbH in Gauting bei München Haustechniklösungen – von der Heizung über die Elektro- und Sanitärinstallation, Badgestaltung. Familienunternehmen in der 5. Generation, Meisterbetrieb für Heizung, Sanitär, Bad, Elektro, Haus- & Wohnungssanierung.
Key services
Heating installation and maintenance, Sanitary installation, Bathroom design and renovation, Electrical installation, House and apartment renovation
Content quality
good
Branding
consistent

Technology

Stack
WordPress, PHP, jQuery, Yoast SEO plugin, Cookiebot, Facebook Pixel, Google reCAPTCHA
Frameworks
Avada WordPress Theme
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • Use of Google reCAPTCHA for bot protection
  • Facebook Pixel for tracking with consent

Analytics and tracking

Services
WordPress.com Stats, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Facebook Ads
Tracking pixels
Facebook Pixel
Marketing tools
Facebook Pixel, Cookiebot
Transparency
good

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. Cookie consent is implemented via Cookiebot with detailed cookie categories.
  3. No explicit privacy policy or terms of service pages found in the scanned content.
  4. Contact information includes company email and phone number clearly labeled.
  5. Social media presence on Facebook and Instagram is linked.
  6. Website uses WordPress CMS with Avada theme and common plugins.
  7. Security headers are not explicitly detected in the HTML content.
  8. SSL is enabled and appears properly configured.
  9. No signs of malware, phishing, or suspicious external domains.
  10. Content is business-focused, safe, and appropriate for general audiences.
Technical notes

Notes

The website is built on WordPress CMS using the Avada theme, a popular and feature-rich framework. It employs jQuery and integrates several plugins including Yoast SEO for search engine optimization and Cookiebot for cookie consent management. The site loads external scripts from Facebook and Google for tracking and bot protection. Performance is moderate with standard optimizations, and the site is mobile responsive. Hosting details are not explicitly disclosed. The site uses canonical URLs and structured data (JSON-LD) for SEO benefits. There is room for improvement in security header implementation and accessibility compliance. Overall, the technical infrastructure is solid for a small business website but could 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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