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Security report for 4bowl.de

Logo-Solution GmbH · Hospitality · Germany

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

57/100

Risk levelMedium

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

4bowl is a German-based SaaS provider specializing in online reservation and booking systems tailored for bowling centers and leisure facilities. The company, operated by Logo-Solution GmbH, offers a comprehensive platform that enables professional management of bookings and staff, accessible via multiple devices including PC, Mac, tablets, and smartphones. With over 200 centers relying on their system, 4bowl holds a strong market position in the hospitality and leisure sector in Germany and surrounding countries. The website is well-branded, professionally designed, and provides clear information about its services and customer base. Technically, the website employs modern web technologies such as Bootstrap, jQuery, and integrates multiple marketing and analytics tools including Google Analytics, Facebook Pixel, and Tawk.to live chat. Hosting and DNS services are managed via Cloudflare, ensuring robust infrastructure and performance. The site is mobile-optimized and SEO-friendly, though accessibility features could be improved. From a security perspective, the site enforces HTTPS with strong SSL configuration and uses Cloudflare for DNS and CDN services. It implements a cookie consent banner and maintains GDPR compliance with a privacy policy. However, it lacks visible security headers, an incident response policy, and a vulnerability disclosure mechanism, which are areas for improvement. No critical vulnerabilities or exposed sensitive data were detected. Overall, 4bowl presents a trustworthy and professional online presence with a solid technical foundation and good privacy practices. Strategic enhancements in security policies and compliance documentation would further strengthen its security posture and business credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 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

8 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';…

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

Keep watching 4bowl.de

This scan found 27 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
65
Security headers
20
Email security
50
DNS health
65
Network security
100
GDPR outside view
40
Average
57

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 4bowl.de, from OffSeq Breach.

Total records
406
Employees
0
Customers
406
Third parties
0
Weak passwords
5%

1 subdomain affected

See the 10 newest leaked credentials

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Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

4bowl operates in the niche market of leisure and sports facility management software, focusing on bowling centers and similar venues. Its SaaS model provides scalable online booking and reservation services, targeting professional operators seeking efficient customer management and increased revenue. The company leverages partnerships and a broad customer base to maintain market leadership in Germany. Its integration with social media and newsletter marketing tools indicates a strong emphasis on customer engagement and retention. The business model is subscription-based with API offerings for integration. Growth indicators include multi-country domain presence and over 200 active centers. The parent company, Logo-Solution GmbH, supports the product with additional services and branding consistency.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, encrypted connections, and use of Cloudflare infrastructure. GDPR compliance is evident through cookie consent and privacy policy availability. However, the absence of security headers such as Content-Security-Policy and X-Frame-Options reduces defense-in-depth. Lack of published incident response contacts and vulnerability disclosure policies may delay response to security incidents. No signs of exposed credentials or vulnerable libraries were found. The use of third-party marketing and analytics scripts introduces moderate tracking but is managed transparently. Overall, the security posture is good but can be enhanced by formalizing incident response and improving header policies.

Recommendations

  1. Publish a clear incident response policy and provide dedicated security contact channels.
  2. Implement and configure security headers like Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Add a terms of service page to improve legal compliance and user clarity.
  4. Create and host a security.txt file to facilitate vulnerability reporting.
  5. Enhance accessibility features to meet modern standards and improve user inclusivity.

Contact details published on the site

Addresses
Legal name
Logo-Solution GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Logo-Solution GmbH
Description
4bowl is an online reservation and booking system designed for bowling centers and leisure facilities, offering management of bookings and staff with a professional and user-friendly interface. It supports multiple sports and leisure activities including bowling, billiards, tennis, squash, lasertag, minigolf, racing simulators, and more.
Key services
Online reservation system, Multi-user booking management, Real-time booking via smartphone, tablet, PC, Newsletter and Facebook integration, API access
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap, Font Awesome, Google Analytics, Google Tag Manager, Facebook Pixel, Tawk.to live chat, Flexslider, Image Map Pro
Frameworks
Bootstrap
Platforms
Web, PC, Mac, Linux, Tablet, Smartphone
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Encrypted connections
  • Use of Cloudflare DNS and CDN
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Cloudflare Insights
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Ads
Tracking pixels
Facebook Pixel
Marketing tools
Newsletter system (integrated), Facebook Login integration
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Content is professionally presented in German with multi-language support links.
  3. Strong focus on GDPR compliance with visible cookie banner and privacy policy.
  4. No terms of service page found which is a minor compliance gap.
  5. Multiple tracking and marketing scripts used, including Google and Facebook.
  6. Contact information is clearly presented with phone, email, and physical address.
  7. No visible forms on the main page; contact likely via dedicated contact page.
  8. Use of modern web technologies and frameworks.
  9. Hosting and DNS via Cloudflare indicating good infrastructure.
  10. No security.txt or explicit vulnerability disclosure found.
Technical notes

Notes

The website uses a modern and stable technology stack including Bootstrap for responsive design, jQuery for interactivity, and Font Awesome for icons. It integrates multiple third-party services for analytics, marketing, and live chat, indicating a mature digital marketing strategy. Hosting via Cloudflare provides CDN and DNS resilience. Performance is moderate with room for optimization. The site is mobile-friendly and SEO-optimized with proper meta tags and structured data (JSON-LD). No CMS was detected, suggesting a custom or static site approach. Technical risks are low but could be mitigated further by updating accessibility and security headers.
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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