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Security report for djkolecko.cz

František Serbus alias DJ Kolečko · Retail · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view and Security headers.

Security score

63/100

Risk levelMedium

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

DJ Kolečko is a small Czech Republic-based business operated by the Serbus couple, specializing in DJ services for events and custom textile printing including promotional items. Established in 2016, the company has built a niche in event entertainment and personalized merchandise. The website is built on WordPress with WooCommerce and Elementor, integrating modern marketing and tracking tools such as Facebook Pixel and MailerLite. The site is well-designed, mobile-optimized, and provides clear contact information and customer testimonials, enhancing trust and credibility. However, it lacks explicit privacy and cookie policies, which are important for GDPR compliance. Security posture is good with HTTPS and no visible vulnerabilities, but security headers and vulnerability disclosure mechanisms are absent.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

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 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

  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 djkolecko.cz

This scan found 23 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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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
95
Security headers
15
Email security
75
DNS health
80
Network security
100
GDPR outside view
10
Average
63

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 business targets event organizers and individuals seeking DJ services and custom printed textiles. Its business model combines service provision with e-commerce sales of custom merchandise. The company maintains active social media presence on Facebook and Instagram, supporting marketing efforts. The domain age and WHOIS data align with the business history, indicating legitimacy. Customer reviews and detailed service descriptions position the company as a trusted local provider. Growth potential exists through expanded online presence and enhanced compliance measures.

Security posture

The website uses HTTPS with a valid SSL certificate, ensuring encrypted communications. No security headers were detected, representing an area for improvement. No sensitive data exposure or vulnerable libraries were found in the HTML content. Tracking scripts are used responsibly, but lack of cookie consent mechanisms may pose compliance risks. No incident response or security policy information is published. Overall, the security posture is moderate to good but can be enhanced by implementing security headers, privacy policies, and vulnerability disclosure.

Recommendations

  1. Implement a comprehensive privacy policy and cookie policy with explicit user consent mechanisms to ensure GDPR compliance.
  2. Add security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options, and X-XSS-Protection to improve security posture.
  3. Publish a security.txt file or vulnerability disclosure policy to facilitate responsible reporting of security issues.
  4. Regularly audit and update third-party scripts and plugins to mitigate potential vulnerabilities.
  5. Enhance accessibility features and conduct periodic security and compliance reviews to maintain trust and professionalism.

Contact details published on the site

Addresses
Legal name
František Serbus alias DJ Kolečko
Registration number
05088798
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
František Serbus alias DJ Kolečko
Description
DJ Kolečko provides DJ services, event music accompaniment, and custom textile printing including promotional items and original gifts. The business is run by the Serbus couple and has been active since 2016.
Key services
DJ event services, Custom textile printing (t-shirts, bags, badges), Production of promotional items, Graphic design on request
Content quality
good
Branding
consistent

Technology

Stack
WordPress, WooCommerce, Elementor, MailerLite, Facebook Pixel, Select2, Swiper.js
Frameworks
WordPress
Platforms
WooCommerce
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Facebook Pixel and MailerLite scripts with async loading

Analytics and tracking

Services
Google Analytics (via gtag.js), Facebook Pixel
Tracking level
moderate
Privacy practices
poor

Advertising

Tracking pixels
Facebook Pixel
Marketing tools
MailerLite
Transparency
basic

Site quality

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

Key observations

  1. Website is a small business site for DJ and custom textile printing services.
  2. Content is in Czech language with good localization and structured data.
  3. No privacy or cookie policies explicitly found, which is a compliance gap.
  4. Contact information is clearly presented including phone, email, and physical address.
  5. Use of modern web technologies and CMS (WordPress, WooCommerce, Elementor).
  6. Includes customer reviews and social media links enhancing trust.
  7. No security.txt or vulnerability disclosure found.
  8. SSL is properly configured and HTTPS is used.
  9. No WAF or blocking mechanisms detected.
  10. Tracking includes Facebook Pixel and Google Analytics, but no explicit cookie consent mechanism.
Technical notes

Notes

The website is built on a modern WordPress CMS platform with WooCommerce for e-commerce functionality and Elementor for page building. It uses popular libraries such as Swiper.js for carousels and Select2 for enhanced select boxes. Performance is moderate with asynchronous loading of key scripts like Facebook Pixel and MailerLite. The site is mobile-optimized and SEO-friendly with proper meta tags and structured data (JSON-LD). Hosting appears to be with a Czech provider consistent with the domain registrar. Technical debt is low, but security headers and privacy compliance features are missing, representing modernization opportunities.
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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