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Security report for colours.cz

Other · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

55/100

Risk levelMedium

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

Colours of Ostrava is a prominent multi-genre music festival held in the Czech Republic, featuring a diverse lineup of international and local artists. The festival also hosts Meltingpot, a large multi-disciplinary forum focusing on science, health, arts, and lifestyle topics. The website serves as the primary digital platform for event information, ticket sales, and audience engagement, supporting multiple languages to cater to a broad European audience. The business model revolves around event organization, ticketing, and merchandising through an associated e-shop. Technically, the site is built on WordPress with modern SEO and multilingual plugins, leveraging Google Tag Manager and Facebook Pixel for analytics and marketing. The site is mobile-optimized and professionally designed, providing a high-quality user experience.

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

7 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn, YouTube

      What to do: Document all third-party data sharing in your privacy policy

  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 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 colours.cz

This scan found 21 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

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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
42
Security headers
65
Email security
75
DNS health
80
Network security
40
GDPR outside view
25
Average
55

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 festival holds a strong market position as one of Europe's largest multi-genre music events, attracting a medium-sized audience with a mix of music, culture, and intellectual forums. Revenue streams include ticket sales, merchandise, and sponsorships. The partnership ecosystem includes web development firms and associated event forums. The website's multilingual support and mobile app indicate a focus on accessibility and user engagement. Growth indicators include a well-curated artist lineup and integration of a multi-disciplinary forum, expanding the event's appeal beyond music. Strategic observations suggest opportunities to enhance privacy compliance and security transparency to strengthen trust.

Security posture

The website demonstrates a good security posture with HTTPS enforced and no visible sensitive data exposure. Use of async and defer for scripts indicates performance and security awareness. However, the absence of security headers and a security.txt file limits the site's defense-in-depth and vulnerability disclosure capabilities. No explicit contact channels for security incidents are provided, which could hinder incident response. Compliance with GDPR is not clearly demonstrated due to missing privacy and cookie policies. Overall, the site is secure but could improve transparency and formal security practices.

Recommendations

  1. Publish comprehensive privacy and cookie policies prominently linked on the website.
  2. Implement standard security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options.
  3. Create and host a security.txt file to facilitate vulnerability reporting and improve security transparency.
  4. Provide clear contact information for business and security inquiries, including a dedicated security contact email.
  5. Regularly audit third-party scripts and tracking tools to ensure compliance with privacy regulations and minimize user tracking.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Multi-genre festival Colours of Ostrava offering four days of music and experiences.
Key services
Music festival event, Ticket sales, Multi-disciplinary forum (Meltingpot), Mobile application for festival, E-shop
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Yoast SEO plugin, Google Tag Manager, Facebook Pixel, WPML (multilingual CMS plugin), JavaScript ES6 modules, CSS variables and modern CSS
Platforms
WordPress CMS
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of async/defer for scripts
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics, Google Ads
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Ads
Tracking pixels
Facebook Pixel
Transparency
good

Site quality

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

Key observations

  1. Website is a professionally designed event site for Colours of Ostrava festival 2025
  2. Content is rich with artist lineups, ticket sales, and event information
  3. Multilingual support with Czech, English, and Polish versions
  4. No visible privacy or cookie policy pages linked in main navigation or footer
  5. No explicit contact emails or phone numbers found in the main HTML content
  6. Social media presence is strong with official accounts linked
  7. Use of modern web technologies and SEO best practices
  8. No security.txt or vulnerability disclosure information found
  9. WHOIS data is not publicly available, indicating privacy protection
Technical notes

Notes

The website is built on a modern WordPress platform with multilingual support via WPML and SEO optimization through Yoast. It uses Google Tag Manager and Facebook Pixel for analytics and marketing, indicating a mature digital marketing strategy. The site loads scripts asynchronously and uses CSS variables for styling, reflecting modern front-end practices. Mobile optimization is excellent, with responsive design and adaptive images. Performance is moderate, likely due to rich media content such as videos and high-resolution images. Hosting provider details are not disclosed. Technical risks include reliance on multiple third-party scripts and lack of explicit security headers, which should be addressed to enhance security posture.
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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