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Security report for mdb.cz

Městské divadlo Brno · Hospitality · Czech Republic

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

Security score

66/100

Risk levelMedium

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

Městské divadlo Brno is a well-established cultural institution in the Czech Republic, specializing in theatrical performances including drama, musicals, and opera. The website reflects a mature digital presence with a comprehensive program offering, ticket sales, subscription services, and an e-shop. The institution holds a strong market position as one of the progressive artistic entities in the Czech theatre scene. Technically, the website employs modern web technologies such as jQuery, Google Analytics, Facebook SDK, and a proprietary CMS (Winston CMS), hosted by Active24. The site is mobile-optimized, accessible, and SEO-friendly, providing a professional user experience. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, although some security headers could be improved. No critical vulnerabilities or blocking mechanisms were detected. Privacy compliance is robust, with clear policies and GDPR adherence. Overall, the website demonstrates high professionalism, trustworthiness, and effective digital maturity.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 100 · Medium
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. 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 mdb.cz

This scan found 24 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
15
Email security
75
DNS health
80
Network security
100
GDPR outside view
73
Average
66

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 theatre operates primarily in the hospitality and cultural sector, targeting a general audience interested in performing arts. Its business model revolves around live performances, ticketing, subscriptions, and merchandise sales. The domain age and WHOIS data confirm a longstanding presence, enhancing credibility. Partnerships with local businesses and city authorities are evident, supporting its community integration. The website's multilingual support and comprehensive program listings indicate a focus on accessibility and audience engagement. The use of analytics and marketing tools suggests an active approach to audience insights and outreach. No direct contact emails or phone numbers were found, which may be typical for cultural institutions relying on web forms or ticketing platforms for communication.

Security posture

The website enforces HTTPS and uses cookie consent tools compliant with GDPR, reflecting good privacy and security practices. External scripts from trusted providers like Google and Facebook are used for analytics and social media integration. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, explicit security headers such as X-Frame-Options and X-Content-Type-Options were not found, which could be added to enhance protection against clickjacking and MIME sniffing. There is no visible security policy or incident response contact information, and no security.txt file was detected. Overall, the security posture is good but could be improved with additional headers and formal security disclosures.

Recommendations

  1. Add explicit security headers including X-Frame-Options and X-Content-Type-Options to strengthen browser security.
  2. Publish a dedicated security policy page and provide incident response contact channels to improve transparency and readiness.
  3. Implement a security.txt file to facilitate vulnerability disclosure and responsible reporting.
  4. Regularly audit third-party scripts and dependencies to mitigate risks from external libraries.
  5. Enhance accessibility features with ARIA roles and landmarks to improve compliance and user experience.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Městské divadlo Brno
Description
Městské divadlo Brno představuje v rámci současného divadelního dění v České republice jednu z nejprogresivnějších uměleckých institucí s programovým zaměřením na činoherní a muzikálovou divadelní produkci.
Key services
Theatrical performances (drama, musical, opera), Ticket sales, Subscription services, E-shop for merchandise, Educational musical school
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Google Analytics, Facebook SDK, Google Tag Manager, CookieScript, Fancybox, Winston CMS
Frameworks
Winston CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular categories
  • No exposed sensitive data in HTML
  • Use of secure external scripts

Analytics and tracking

Services
Google Analytics, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Doubleclick
Tracking pixels
Facebook Pixel
Marketing tools
CookieScript
Transparency
good

Site quality

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

Key observations

  1. Website is a professional cultural institution site for Městské divadlo Brno
  2. Content is rich, well-structured, and multilingual
  3. Strong privacy and cookie compliance with user consent mechanisms
  4. Use of modern web technologies and analytics tools
  5. No security blocking or WAF detected
  6. No direct contact emails or phone numbers found on main page
  7. Social media presence is well integrated
  8. Partner logos and links indicate established local partnerships
Technical notes

Notes

The website uses a combination of jQuery, Google Analytics, Facebook SDK, and Google Tag Manager, integrated within the Winston CMS platform. Hosting is provided by Active24, a reputable Czech hosting provider. The site is mobile responsive and optimized for performance with asynchronous script loading. SEO is supported by proper meta tags and Open Graph data. Cookie consent is managed by CookieScript, providing granular user control. The technical stack is modern but relies on some older libraries like jQuery 1.2.7 and html5shiv, which could be updated. Performance is moderate, with room for optimization in script loading and caching. Overall, the technical infrastructure supports a professional and user-friendly website experience.
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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