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Security report for jakfungujedns.cz

CZ.NIC · Technology · Czech Republic

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

Security score

59/100

Risk levelMedium

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

The website jakfungujedns.cz is an official educational platform operated by CZ.NIC, the Czech Republic's domain registry association responsible for managing the .CZ domain and DNS infrastructure. It provides clear, step-by-step educational content explaining how DNS works, targeting general internet users and those interested in internet technology. The site is well-branded with CZ.NIC logos and consistent messaging, reinforcing its authoritative position in the Czech internet ecosystem. Technically, the website uses standard web technologies including HTML5, CSS, JavaScript, and jQuery 1.11.0. It integrates Piwik/Matomo analytics with cookies disabled for tracking, and employs a cookie consent mechanism with default consent set to false, indicating a basic level of privacy compliance. The site is mobile responsive and has good navigation and content structure, though accessibility features are basic and SEO optimization is minimal. From a security perspective, the site shows some good practices such as sandboxing embedded iframes and disabling cookies in analytics. However, no explicit security headers were detected in the provided data, and there is no published security policy or incident response information. The SSL configuration could not be verified from the data but is assumed to be present given the official nature of the site. No vulnerabilities or sensitive data exposures were found. Overall, the website is trustworthy, professionally maintained, and serves its educational purpose well. It lacks some advanced privacy and security disclosures but maintains a good baseline. Strategic recommendations include adding explicit privacy and security policies, improving security headers, and updating JavaScript libraries to current versions to enhance security posture and compliance.

Scanned

This is an earlier scan of jakfungujedns.cz. View the latest report

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

6 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 APIs

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

  2. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

Need hands-on remediation? Email guard@offseq.com

Keep watching jakfungujedns.cz

This scan found 19 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
75
Security headers
80
Email security
60
DNS health
75
Network security
40
GDPR outside view
25
Average
59

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

CZ.NIC operates as the official registry for the .CZ domain, positioning itself as a critical infrastructure provider in the Czech internet ecosystem. The website serves as an educational tool rather than a commercial platform, focusing on raising awareness about DNS technology. The business model is non-commercial, funded likely through domain registration fees and governmental or community support. The target audience includes general internet users, students, and IT professionals seeking to understand DNS. The company benefits from strong brand recognition and trust as the authoritative domain registry. Partnerships appear limited to related NIC domains, with no evident subsidiaries or external commercial partners. The site’s content and design reflect a focus on clarity and education rather than marketing or sales.

Security posture

The security maturity of the website is moderate. It employs HTTPS (assumed), disables cookies in analytics to enhance privacy, and uses sandbox attributes on embedded content to reduce risk. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces its defense-in-depth. No vulnerability disclosure or incident response information is published, which could hinder rapid response to security incidents. The use of an older jQuery version may pose some risk if not regularly patched. Overall, the site demonstrates baseline security hygiene but would benefit from enhanced security policies, headers, and transparency to improve resilience and compliance with GDPR and NIS2 directives.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to strengthen browser security.
  2. Publish clear privacy and security policies, including GDPR compliance statements and data retention policies.
  3. Update JavaScript libraries such as jQuery to the latest stable versions to mitigate known vulnerabilities.
  4. Introduce a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  5. Enhance accessibility features and SEO optimization to improve user experience and discoverability.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CZ.NIC
Description
Educational website explaining how DNS works, operated by CZ.NIC, the .CZ domain registry association.
Key services
Domain registry management, DNS operation, Educational content about DNS
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS, JavaScript, jQuery 1.11.0, Piwik/Matomo Analytics
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • Use of sandbox attribute on iframe
  • Disabling cookies in Piwik analytics

Analytics and tracking

Services
Piwik/Matomo
Tracking level
minimal
Privacy practices
basic

Advertising

Tracking pixels
Piwik/Matomo
Transparency
basic

Site quality

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

Key observations

  1. Website is an official educational resource about DNS operated by CZ.NIC
  2. No privacy or terms of service pages found
  3. Cookie consent mechanism implemented with default consent false
  4. Contact information clearly provided in footer
  5. No forms detected on the site
  6. Use of older jQuery version (1.11.0) but no known vulnerabilities visible
  7. No social media links present
  8. No security.txt or vulnerability disclosure information found
  9. No explicit security policies or incident response contacts published
Technical notes

Notes

The website is built on a straightforward technology stack with HTML5, CSS, and JavaScript, including jQuery 1.11.0. It uses Piwik/Matomo for analytics with cookies disabled, indicating privacy-conscious tracking. The site loads external fonts from Google Fonts and embeds a YouTube video with sandboxing for security. The cookie consent mechanism is implemented via an external script from NIC.CZ domains, supporting GDPR compliance. Hosting appears to be managed by CZ.NIC or related infrastructure, ensuring reliability. Performance is moderate with good mobile responsiveness. However, the use of an older jQuery version and lack of detected security headers suggest some technical debt and security risks. There is no detected CMS or complex framework, indicating a custom or static site approach. Opportunities exist to modernize the tech stack, improve security headers, and enhance SEO and accessibility.
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

Earlier scans of this domain

  1. 55/100Medium31 findingsView report
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