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Security report for guenzel-kreuzer.com

Günzel & Kreuzer Werbetechnik · Other · 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

Günzel & Kreuzer Werbetechnik is a well-established German family-owned business specializing in custom advertising technology solutions including light and outdoor advertising. With a domain age dating back to 2003, the company positions itself as a 360° service provider offering planning, visualization, production, installation, and maintenance services. Their clientele includes local and national businesses, agencies, architects, and startups. The website reflects a professional and consistent brand image with comprehensive service descriptions and client references. Technically, the website is built on WordPress with modern web technologies such as Contact Form 7 and CookieMonkey for cookie consent management. The site is mobile-optimized, SEO-friendly, and performs moderately well. Hosting is likely provided by IONOS SE, consistent with the registrar data. The website employs HTTPS with a good SSL configuration but lacks DNSSEC and some advanced security headers. From a security perspective, the site demonstrates good practices such as HTTPS enforcement and a cookie consent mechanism compliant with GDPR. However, it lacks explicit security policies, incident response contacts, and vulnerability disclosure information. No critical vulnerabilities or suspicious content were detected. The WHOIS data aligns well with the website's business claims, enhancing trustworthiness. Overall, the website is professional, secure, and compliant with privacy regulations, making it a trustworthy digital presence for the company. Strategic improvements in DNS security and publishing security policies could further enhance their security posture.

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 guenzel-kreuzer.com

This scan found 25 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
77
Security headers
15
Email security
55
DNS health
75
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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention guenzel-kreuzer.com, from OffSeq Breach.

Total records
1
Employees
0
Customers
0
Third parties
1
Weak passwords
0%

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for guenzel-kreuzer.com.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

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 advertising technology sector, focusing on bespoke solutions for light and outdoor advertising. Their business model centers on providing end-to-end services from concept to installation, targeting a diverse audience including businesses, creative agencies, architects, and startups. The presence of reputable clients like Burger King and Engelbert Strauss indicates strong market positioning and credibility. The company leverages partnerships with technology providers for cookie management and SEO optimization. Growth indicators include a well-maintained website with multimedia content and active social media presence. The company emphasizes sustainability and innovation, which may serve as competitive advantages in their market niche.

Security posture

The website exhibits a mature security posture with mandatory HTTPS and a cookie consent mechanism aligned with GDPR requirements. The domain status clientTransferProhibited adds a layer of domain security. However, the absence of DNSSEC and advanced HTTP security headers such as Content-Security-Policy and Strict-Transport-Security represents areas for improvement. No public security or incident response policies are available, which could hinder rapid response to security incidents. The lack of a vulnerability disclosure policy or security.txt file limits transparency. Overall, the security posture is good but could be enhanced by adopting additional best practices and formalizing security policies.

Recommendations

  1. Enable DNSSEC to strengthen DNS security and prevent spoofing.
  2. Implement HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Publish a dedicated security policy and incident response contact information on the website.
  4. Create and maintain a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Regularly audit and update third-party libraries and plugins to mitigate vulnerabilities.

Contact details published on the site

Addresses
Legal name
GÜNZEL & KREUZER Werbetechnik GmbH & Co. KG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Günzel & Kreuzer Werbetechnik
Description
Wir setzen Marken visuell in Szene! Mehr als Licht- und Außenwerbung: Individuelle Konzepte, nachhaltige Technologien, von 3D-Konzepten bis zur Montage.
Key services
Werbetechnik, Lichtwerbung, Außenwerbung, Individuelle Konzepte, 3D-Konzepten, Montage, Visualisierung, Produktion, Montage und Wartung
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Contact Form 7, Tiny Slider (tns), CookieMonkey (cookie consent), Yoast SEO (implied by yoast-schema-graph), JavaScript, CSS, HTML5
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • clientTransferProhibited domain status
  • cookie consent banner with granular controls

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Marketing tools
CookieMonkey
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 rich content and multimedia
  2. Strong branding and consistent design throughout
  3. Comprehensive cookie consent mechanism implemented
  4. No visible security policy or incident response information
  5. No terms of service page detected
  6. Contact information clearly presented in footer and contact page
  7. Use of modern web technologies and CMS (WordPress)
  8. No suspicious or malicious content detected
  9. No adult or NSFW content present
Technical notes

Notes

The website is built on WordPress, utilizing popular plugins such as Contact Form 7 for forms and CookieMonkey for cookie consent management. The use of Tiny Slider enhances user experience with interactive carousels. The site loads CSS and JS assets optimized via Autoptimize, contributing to moderate performance. Mobile responsiveness is well implemented with adaptive images and media queries. SEO is supported by Yoast SEO structured data and proper meta tags. Hosting appears stable with IONOS SE as registrar and DNS provider. Technical debt is minimal, but enabling DNSSEC and adding security headers would modernize the security infrastructure and reduce risk.
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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