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Security report for gsak.de

Gesellschaft für Stadtreinigung und Abfallwirtschaft Krefeld mbH · Energy · Germany

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

Security score

67/100

Risk levelMedium

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

Gesellschaft für Stadtreinigung und Abfallwirtschaft Krefeld mbH (GSAK) is a municipal service provider specializing in waste collection, street cleaning, and winter services in Krefeld, Germany. It operates as a subsidiary of SWK AG and EGN Entsorgungsgesellschaft Niederrhein mbH, positioning itself as a regional leader in environmental and waste management services. The website offers comprehensive information about their services, including container rental, bulky waste collection, and a mobile app for customer convenience. The target audience primarily includes private customers and businesses within Krefeld.

Scanned

NIS2 and GDPR posture

GDPR outside view
33/ 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

    • 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 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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Keep watching gsak.de

This scan found 20 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
60
Email security
70
DNS health
60
Network security
100
GDPR outside view
33
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

GSAK's market position is strong within the municipal services sector, leveraging partnerships with established parent companies. Their business model focuses on providing essential public services with a customer-centric approach, including digital tools like the SWK App. The company maintains a clear brand identity and consistent messaging across its digital presence. Their partnership ecosystem includes several related entities in the energy and waste management sectors, enhancing operational capabilities and market reach.

Security posture

The website demonstrates a solid security posture with HTTPS enforcement, modern security headers, and cookie consent mechanisms compliant with GDPR. However, explicit security policies, incident response contacts, and vulnerability disclosure mechanisms are absent, representing areas for improvement. No critical vulnerabilities or exposed sensitive data were detected. The use of reputable analytics and tracking tools is balanced with privacy compliance efforts.

Recommendations

  1. Publish a dedicated security policy and incident response plan on the website to enhance transparency.
  2. Implement a vulnerability disclosure program or security.txt file to facilitate responsible reporting.
  3. Provide clear contact details for the Data Protection Officer to strengthen GDPR compliance.
  4. Regularly review and update third-party scripts and libraries to mitigate potential vulnerabilities.
  5. Enhance user trust by showcasing certifications or quality seals related to environmental and data security standards.

Contact details published on the site

Addresses
Legal name
Gesellschaft für Stadtreinigung und Abfallwirtschaft Krefeld mbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Gesellschaft für Stadtreinigung und Abfallwirtschaft Krefeld mbH
Description
Die GSAK ist ein kommunales Dienstleistungsunternehmen für Abfallsammlung, Straßenreinigung und Winterdienst in Krefeld. Tochterunternehmen der SWK AG und der EGN Entsorgungsgesellschaft Niederrhein mbH.
Key services
Abfallsammlung, Straßenreinigung, Winterdienst, Containerdienst, Entrümpelungen, Notfallmanagement, Veranstaltungstonnen, Wohnungswirtschaft, Sperrmüll Online, Wertstoffhof
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Usercentrics (cookie consent), Google Tag Manager, Microsoft Application Insights
Frameworks
Next.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Cookie consent implemented

Analytics and tracking

Services
Google Tag Manager, Microsoft Application Insights
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Application Insights
Marketing tools
Usercentrics
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. Content is professionally presented in German language targeting Krefeld residents.
  3. Strong focus on municipal waste management and related services.
  4. Comprehensive navigation and service descriptions.
  5. Cookie consent and privacy policies are implemented and GDPR compliant.
  6. No explicit security policy or incident response information found.
  7. No vulnerability disclosure or security.txt present.
  8. Social media presence on Facebook, Instagram, and YouTube.
  9. Use of modern web technologies and analytics tools.
  10. WHOIS data is minimal but consistent with business claims.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, ensuring fast performance and excellent mobile optimization. Hosting appears to be managed via Vodafone IP infrastructure, supporting reliable uptime and scalability. The site integrates Usercentrics for cookie consent and uses Google Tag Manager and Microsoft Application Insights for analytics, reflecting a mature digital infrastructure. Accessibility and SEO practices are well implemented, contributing to a positive user experience and discoverability.
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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