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Security report for jan-vasek.cz

Other · Czech Republic

Medium risk. 5 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

69/100

Risk levelMedium

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

The website www.jan-vasek.cz represents a personal brand focused on online marketing education and consulting, particularly specializing in Facebook and Instagram advertising. The business claims to have been active since 2011, targeting Czech-speaking clients interested in social media marketing training. The site is built on the Wix platform, leveraging Wix's Thunderbolt framework and modern JavaScript polyfills to ensure compatibility and performance. The technical infrastructure is typical for a small personal brand website, with moderate performance and good mobile optimization. Security posture is adequate with HTTPS enforced and cookie consent implemented, but lacks explicit security headers and published security policies. WHOIS data is unavailable due to privacy protection, which is common for personal websites but reduces transparency. Overall, the site is professional and trustworthy but could improve in privacy compliance and security transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
55/ 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

5 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 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. 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 jan-vasek.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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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
35
Email security
70
DNS health
80
Network security
100
GDPR outside view
55
Average
69

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 operates as a small-scale service provider and educator in the online marketing niche, focusing on social media advertising platforms. Its market position is that of a niche personal brand with a clear target audience of Czech-speaking marketers and business owners seeking Facebook and Instagram advertising expertise. The business model revolves around training, consulting, and educational content delivery. There is no evidence of partnerships or subsidiaries. The website content quality is good, with consistent branding and relevant descriptions. However, the lack of explicit contact information and privacy policies may limit business credibility to some extent.

Security posture

The website enforces HTTPS and includes a cookie consent mechanism, which are positive security and privacy practices. JavaScript overrides indicate efforts to harden client-side security, particularly around fetch and XMLHttpRequest calls. However, the absence of common security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options reduces the overall security posture. No vulnerability disclosures, incident response contacts, or security policies are published, which limits transparency and preparedness. The WHOIS privacy protection is typical but reduces trust signals. No critical vulnerabilities or exposed sensitive data were detected in the analyzed content.

Recommendations

  1. Implement and publish a comprehensive privacy policy and terms of service to improve compliance and user trust.
  2. Add standard security headers (CSP, X-Content-Type-Options, X-Frame-Options) to enhance protection against common web attacks.
  3. Provide clear contact information including business email and phone number to improve business credibility.
  4. Publish a security policy and incident response contact details to demonstrate security maturity and readiness.
  5. Regularly audit third-party scripts and dependencies to ensure no vulnerable libraries are included.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Online marketing mě začal živit v roce 2011, později jsem se zbláznil do Facebook a Instagram reklamy. Školím, učím, konzultuji.
Key services
Facebook advertising training, Instagram advertising training, Consulting, Online marketing education
Content quality
good
Branding
consistent

Technology

Stack
Wix.com Website Builder, JavaScript, Core-js polyfills, Focus-within polyfill, Intl Segmenter polyfill, Wix Thunderbolt framework
Frameworks
Wix Thunderbolt
Platforms
Wix
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with consent mechanism
  • Security-related JavaScript overrides to harden fetch and XMLHttpRequest

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is built on Wix platform with modern JavaScript frameworks and polyfills
  2. Content is in Czech language focused on online marketing education
  3. No explicit contact emails or phone numbers found on main page
  4. Cookie consent banner is present and functional
  5. No privacy policy or terms of service pages detected in main HTML content
  6. No security.txt or vulnerability disclosure information found
  7. WHOIS data is not publicly available, indicating privacy protection
  8. No signs of adult or questionable content
  9. No external advertising or tracking scripts detected beyond Wix platform scripts
Technical notes

Notes

The website is built on the Wix platform using the Thunderbolt framework, which provides a modern JavaScript environment with polyfills for compatibility. The site uses multiple CSS and JS bundles from Wix's CDN infrastructure, ensuring reliable hosting and delivery. Performance is moderate, with good mobile optimization and basic accessibility features. SEO is basic with meta tags and Open Graph data present but no advanced SEO optimizations detected. The site lacks custom server-side security headers and advanced analytics or tracking tools. Overall, the technical implementation is solid for a small personal brand site but could benefit from enhanced security and privacy features.
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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