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Security report for elektro-caspersen.de

Caspersen Energie & Haustechnik GmbH · Energy · Germany

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

Caspersen Energie & Haustechnik GmbH is a well-established German company specializing in electrical installations, photovoltaic systems, smart home solutions, and safety inspections such as DGUV V3 and E-Check. With over 60 years of experience, the company positions itself as a reliable and innovative service provider for both residential and commercial clients. The website reflects a professional and trustworthy business with clear service offerings and customer engagement features. Technically, the site is built on WordPress using Elementor and optimized with modern SEO and performance tools. Security posture is good with HTTPS, reCAPTCHA, and cookie consent mechanisms, though some security headers and policies could be improved. Overall, the site is compliant with GDPR and provides comprehensive contact information, enhancing business credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

5 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. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  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 elektro-caspersen.de

This scan found 24 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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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
77
Security headers
15
Email security
70
DNS health
60
Network security
100
GDPR outside view
80
Average
67

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, focusing on sustainable and modern electrical solutions. Its market position is strengthened by long-standing experience, certifications, and partnerships with regional trade organizations. The business model centers on providing specialized electrical services and energy-efficient technologies to homeowners and businesses. The website supports lead generation through contact forms and clear calls to action. The presence of customer testimonials and certifications adds trust. The company targets environmentally conscious customers and those seeking smart home technologies, indicating a growth-oriented and customer-focused approach.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and use of Google reCAPTCHA v3 to protect forms from abuse. Cookie consent is managed via a GDPR-compliant plugin, indicating attention to privacy regulations. However, explicit security policies, incident response contacts, and vulnerability disclosure mechanisms are absent, which could be improved to enhance transparency and readiness. Security headers beyond HTTPS are not explicitly detected, suggesting room for hardening. No vulnerabilities or exposed sensitive data were found in the analysis.

Recommendations

  1. Implement comprehensive security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a dedicated security policy page and provide incident response contact information to improve transparency and trust.
  3. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  4. Regularly audit and update third-party plugins and libraries to mitigate potential vulnerabilities.
  5. Enhance data retention and privacy policy details to clearly communicate user data handling practices.

Contact details published on the site

Addresses
Legal name
Caspersen Energie & Haustechnik GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Caspersen Energie & Haustechnik GmbH
Description
Seit 1961 ist Caspersen Energie & Haustechnik Ihr zuverlässiger Fachbetrieb für Elektroinstallationen, Photovoltaik und Smart Home-Lösungen.
Key services
Elektroinstallation Neu- und Altbau, Photovoltaik, Smart Home, DGUV V3 Prüfung, E-Check
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Elementor, Yoast SEO, Google Tag Manager, Google Analytics, WP Rocket, Complianz GDPR plugin, jQuery, Swiper.js
Frameworks
Elementor
Platforms
WordPress
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of reCAPTCHA v3 on contact form
  • Cookie consent management via Complianz plugin

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Complianz GDPR Cookie Consent
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 GDPR and cookie compliance with visible consent management.
  3. Professional and consistent branding and content quality.
  4. Use of modern web technologies and SEO best practices.
  5. Contact information is clearly presented and verified.
  6. No visible security policy or incident response information.
  7. No vulnerability disclosure or security.txt found.
  8. Good use of analytics and marketing tools with privacy considerations.
Technical notes

Notes

The website is built on a modern WordPress platform using Elementor for page building, supported by Yoast SEO for optimization and WP Rocket for caching and performance. Google Tag Manager and Google Analytics are integrated for tracking and marketing insights. The site uses lazy loading and responsive design techniques, ensuring fast load times and excellent mobile optimization. The technical implementation is robust with no visible errors or broken elements. However, hosting provider details are not explicit, and some security headers are missing, which could be addressed to improve overall security posture.
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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