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Security report for duna.cz

TILL CONSULT a.s. · Technology · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

53/100

Risk levelMedium

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

TILL CONSULT a.s. operates the website duna.cz, offering a suite of economic and accounting software products under the DUNA brand, targeting small to medium businesses, accounting firms, and specialized sectors such as medical offices and energy distributors. The company has a strong market presence with 28 years of experience and a comprehensive product portfolio including DUNA BUSINESS, TOP, SMART, TRADING, and related web extensions. The website is professionally designed, mobile-optimized, and provides clear navigation and rich content including testimonials and industry news. Technically, the site uses modern JavaScript libraries, Bootstrap framework, and integrates Google Tag Manager and Seznam retargeting for marketing purposes. Security posture is good with HTTPS enforced and cookie consent implemented, though explicit security policies and certifications are not published. Contact information is clearly provided with phone, email, and physical address. Overall, the site reflects a mature business with a solid digital presence but could improve transparency on privacy and security policies.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

9 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 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

    • 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 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 duna.cz

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.

Daily monitoring

Recommended

€25per month

  • 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
52
Security headers
55
Email security
85
DNS health
80
Network security
20
GDPR outside view
25
Average
53

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 positions itself as a key player in the Czech economic software market, serving diverse customer segments from entrepreneurs to accounting firms. Its long domain age and consistent branding indicate stability and trustworthiness. The business model focuses on software sales, customer support, and training services. Partnerships with related domain sites for specialized software indicate an integrated ecosystem approach. The presence of testimonials and detailed product descriptions supports credibility and customer engagement. Growth potential exists through web extensions and continuous legislative updates. The company maintains a professional online presence with active social media channels.

Security posture

The website demonstrates a moderate to good security posture with HTTPS enabled and cookie consent mechanisms in place. Use of Google Tag Manager with default denied ad storage settings shows privacy awareness. However, the absence of published security policies, incident response contacts, or vulnerability disclosure mechanisms limits transparency. No advanced security headers were detected in the provided data. The site does not expose sensitive data or show signs of vulnerabilities in the HTML content. Recommendations include adding security headers, publishing privacy and security policies, and establishing incident response contacts to enhance trust and compliance.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service accessible from the homepage and footer.
  2. Implement and configure security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection.
  3. Add a security.txt file or equivalent vulnerability disclosure page to facilitate responsible reporting.
  4. Enhance accessibility features to meet WCAG standards for broader compliance.
  5. Regularly review and audit third-party scripts and marketing tools for security and privacy compliance.

Contact details published on the site

Addresses
Legal name
TILL CONSULT a.s.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TILL CONSULT a.s.
Description
Vývoj a prodej ekonomického softwaru DUNA pro účetnictví, mzdy, zdravotnické ordinace a distributory energií.
Key services
Účetní software DUNA BUSINESS, TOP, SMART, TRADING, Mzdový software DUNA MZDY, Software pro ordinace DUNA MEDIK, Systém pro distributory energií DUNA TEPLO, Webové nadstavby dunaSHOP a dunaGO, Školení a podpora zákazníků
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, jQuery, Bootstrap, Owl Carousel, Smartsupp Live Chat, Google Tag Manager, Seznam Retargeting
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager with consent defaults denying ad storage
  • Use of Smartsupp chat with async loading

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Seznam Retargeting
Marketing tools
Seznam Retargeting, Smartsupp Live Chat
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. No explicit privacy policy or terms of service found on homepage or footer.
  3. Cookie consent banner present with consent management.
  4. Multiple product variants and detailed business offerings clearly described.
  5. Contact information including phone, email, and physical address is prominently displayed.
  6. Use of modern JavaScript libraries and frameworks for UI and analytics.
  7. No security.txt or vulnerability disclosure information found.
  8. No explicit security certifications or policies published.
  9. Good branding consistency and professional testimonials included.
  10. Social media presence on Instagram and LinkedIn linked.
Technical notes

Notes

The website is built on a custom or proprietary CMS or framework, leveraging Bootstrap for responsive design and jQuery for DOM manipulation. It integrates third-party services including Google Tag Manager for analytics and marketing, Seznam retargeting for advertising, and Smartsupp for live chat support. Performance is moderate with asynchronous script loading and optimized image usage. The site is mobile-friendly and SEO optimized with appropriate meta tags and Open Graph data. Technical risks include reliance on multiple external scripts which require ongoing security monitoring. Hosting and domain registration are managed by REG-GRANSY, a reputable registrar consistent with the business's long-standing domain age.
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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