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Security report for bolleter-gmbh.ch

Bolleter GmbH · Other · Switzerland

High risk. 10 critical or high findings in Network security, Security headers and 2 other checks.

Security score

45/100

Risk levelHigh

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

Bolleter GmbH is a Swiss fiduciary company specializing in accounting, tax, payroll, personnel management, and company formation services primarily targeting small and medium-sized enterprises (KMU) and private clients in the Zürcher Unterland region. The website presents a professional image with clear service offerings and contact information, positioning the company as a regional service provider in fiduciary and related business services. Technically, the website is built on WordPress using the Divi theme, incorporating Google Analytics and Tag Manager for user tracking. The site is mobile-optimized and has good SEO practices but lacks some advanced accessibility features. Security-wise, the site uses HTTPS and avoids exposing sensitive data but does not implement important security headers or publish security policies, which could be improved. Privacy compliance is weak due to the absence of privacy and cookie policies. Overall, the website is trustworthy and functional but would benefit from enhanced compliance and security measures.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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

10 findings rated critical or high. Fix these first.

  1. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  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';…

  3. GDPR outside view

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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

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

Keep watching bolleter-gmbh.ch

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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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
72
Security headers
15
Email security
70
DNS health
75
Network security
0
GDPR outside view
35
Average
45

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 · found on this site
  • 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 fiduciary and accounting sector, serving KMU and private clients with a range of services including bookkeeping, tax consulting, auditing, personnel management, training, and company formation. The business model is service-oriented with a regional focus in Switzerland. The website indicates a small-sized company with no parent or subsidiary affiliations. The use of professional branding and clear contact details supports credibility. The absence of privacy and security policies suggests room for maturity in compliance. The company leverages Google Analytics for marketing insights but does not disclose data retention or privacy practices. No partnerships or related domains were identified from the website content.

Security posture

The website demonstrates a basic to moderate security posture. HTTPS is enforced, ensuring encrypted communications. However, the lack of security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces protection against common web attacks. No vulnerability disclosure or incident response information is provided, which limits transparency and readiness for security incidents. The site does not expose sensitive data or use outdated libraries visibly, which is positive. The absence of cookie consent mechanisms and privacy policies indicates compliance gaps with GDPR and related regulations. Overall, the security posture is adequate but could be significantly improved by implementing recommended headers, policies, and disclosure mechanisms.

Recommendations

  1. Publish a comprehensive privacy policy and cookie consent banner to improve GDPR compliance.
  2. Implement essential security headers (Content-Security-Policy, X-Frame-Options, X-Content-Type-Options) to enhance protection.
  3. Create and publish a security.txt file to facilitate vulnerability disclosure and improve transparency.
  4. Add incident response contact information (e.g., security@ or abuse@ email) to demonstrate readiness.
  5. Regularly audit and update third-party scripts and plugins to mitigate vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Bolleter GmbH
Description
Treuhand Unternehmung im Zürcher Unterland für KMU und Private. Buchhaltung, Steuern, Mehrwertsteuern, Lohnbuchhaltung, Personal und Firmengründungen.
Key services
Treuhand, Buchhaltung, Revision, Personalwesen, Steuern, Schulung, Firmengründung, Outsourcing
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Divi Theme, Google Analytics, Google Tag Manager
Frameworks
Divi
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

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

Advertising

Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is professionally designed with clear navigation and service offerings.
  2. Contact information is prominently displayed with valid company email and phone.
  3. No privacy or cookie policies found, indicating compliance gaps.
  4. Security posture is adequate with HTTPS but lacks advanced security headers.
  5. No vulnerability disclosure or incident response information published.
  6. Use of Google Analytics and Tag Manager indicates moderate user tracking.
  7. No suspicious or malicious content detected.
  8. WHOIS data supports business legitimacy and consistency.
Technical notes

Notes

The website is built on WordPress with the Divi theme, a popular and flexible CMS and framework combination. It uses Google Analytics and Google Tag Manager for tracking and marketing purposes. The site is mobile-optimized and has good SEO metadata including Open Graph and Twitter card tags. Performance is moderate with no major issues detected in the HTML content. Accessibility is basic but could be improved with ARIA roles and better semantic markup. The site lacks advanced security headers and privacy compliance features. Hosting provider details are not explicitly identified from the content. Overall, the technical infrastructure is solid for a small business website but has opportunities for modernization and enhanced security.
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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