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Security report for skenerwebu.cz

CZ.NIC · Government · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

53/100

Risk levelMedium

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

SkenerWebu.cz is a web vulnerability scanning service operated by CZ.NIC, the Czech domain registry association. The service focuses on identifying critical web application vulnerabilities, particularly those listed in the OWASP Top 10, targeting primarily the Czech internet and .CZ domains. The website presents a professional and consistent brand image with clear messaging about its mission to improve web security in the Czech Republic. Technically, the site uses modern frontend technologies such as Bootstrap and jQuery, and employs Matomo analytics with privacy-conscious settings. Security posture is solid with HTTPS enforced and cookie consent implemented, though there is room for improvement in security headers and explicit privacy documentation. The domain registration data aligns well with the website's claims, reinforcing legitimacy and trustworthiness.

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

  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

  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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  4. 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 skenerwebu.cz

This scan found 20 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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

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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
0
Security headers
55
Email security
60
DNS health
75
Network security
100
GDPR outside view
25
Average
53

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention skenerwebu.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for skenerwebu.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The service operates within the government and non-profit sectors, providing essential security scanning services to state and non-profit organizations, with some openness to private sector clients. Its business model revolves around offering vulnerability scanning and manual testing services while collecting statistical data on web vulnerabilities in the Czech internet ecosystem. The company benefits from strong brand association with CZ.NIC and a network of related Czech internet infrastructure and security services. The market position is niche but authoritative, leveraging CZ.NIC's reputation. Growth potential lies in expanding private sector engagement and enhancing service scope.

Security posture

The website demonstrates a mature security posture with HTTPS and cookie consent mechanisms in place. Use of Matomo analytics with disabled cookies indicates privacy awareness. However, the absence of explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options is a notable gap. No direct contact information or incident response channels are published, which could hinder rapid response to security issues. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security posture is good but could be strengthened by publishing clear security policies and improving HTTP header configurations.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service to improve transparency and compliance.
  2. Implement and configure security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection.
  3. Provide explicit contact information for security incidents and data protection inquiries.
  4. Enhance accessibility features to improve usability for all users.
  5. Expand SEO metadata and implement structured data (JSON-LD) for better search engine visibility.

Contact details published on the site

Legal name
CZ.NIC, z. s. p. o.
Registration number
L 58624 (Městský soud v Praze)
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CZ.NIC
Description
SkenerWebu is a service operated by CZ.NIC that offers scanning and manual testing of web applications to detect vulnerabilities, focusing on the OWASP Top 10 vulnerabilities. It targets primarily the Czech internet, especially .CZ domains, and aims to improve web security by providing statistical data and raising awareness.
Key services
Web application vulnerability scanning, Manual security testing, Statistical data collection on vulnerabilities
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap, jQuery, Popper.js, Matomo Analytics
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of Matomo analytics with disabled cookies

Analytics and tracking

Services
Matomo
Tracking level
minimal
Privacy practices
basic

Advertising

Tracking pixels
Matomo
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Content is focused on web application security scanning for Czech internet.
  3. No explicit privacy policy or terms of service found on homepage.
  4. Cookie consent mechanism is implemented with preserved essential cookies.
  5. No direct contact emails or phone numbers found on homepage.
  6. Use of Matomo analytics with disabled cookies indicates privacy awareness.
  7. Website uses modern frontend libraries and frameworks like Bootstrap and jQuery.
  8. No security headers detected in HTML content; potential improvement area.
  9. No structured data (JSON-LD or Open Graph) found in the HTML head.
  10. External links mostly point to CZ.NIC related domains and trusted Czech internet resources.
Technical notes

Notes

The website uses a modern frontend stack with Bootstrap for responsive design, jQuery and Popper.js for UI interactions, and Matomo for analytics. The site loads scripts asynchronously and defers non-critical JavaScript, indicating performance awareness. Mobile optimization is good, with a responsive layout and accessible navigation. However, no CMS or backend platform is explicitly detected. The site lacks advanced SEO metadata and structured data, which could be improved. Hosting provider details are not explicitly available from the HTML content. Overall, the technical implementation is solid with moderate performance and room for SEO and accessibility enhancements.
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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