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Security report for as4u.cz

as4u.cz, s.r.o. · Government · Czech Republic

Low risk. 5 critical or high findings in GDPR outside view and Security headers.

Security score

77/100

Risk levelLow

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

as4u.cz, s.r.o. is a Czech software company specializing in modular content management systems and business applications tailored for municipalities, government bodies, companies, and cultural institutions. With over 20 years of market presence, the company offers products such as the Public4u editorial system, Shop4u e-commerce platform, and various intranet and reservation systems. Their solutions emphasize compliance with legislative requirements, user-friendliness, and scalability, serving a broad client base including cities, towns, and organizations. The website reflects a mature business with a solid client portfolio and a focus on digital transformation in public and private sectors. Technically, the website is built on a proprietary CMS named Public4u, utilizing jQuery and JavaScript libraries. The site is mobile-optimized and structured with good SEO practices. While performance is moderate, the site is accessible and well-organized. Security-wise, HTTPS is enforced, and cookie consent mechanisms are implemented, but there is room for improvement in security headers and explicit security policies. No critical vulnerabilities or exposed sensitive data were detected. The absence of WHOIS data limits domain registration transparency, which slightly impacts trustworthiness. However, the extensive references to reputable municipal and cultural clients, clear contact information, and comprehensive privacy and cookie policies support the company's legitimacy. Overall, the site demonstrates a professional digital presence aligned with its business objectives. Strategic recommendations include enhancing security headers, publishing detailed security and incident response policies, and verifying domain registration details to improve trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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';…

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

Keep watching as4u.cz

This scan found 15 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
100
Security headers
40
Email security
95
DNS health
85
Network security
100
GDPR outside view
40
Average
77

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 company holds a strong position in the Czech market for government and municipal software solutions, leveraging over two decades of experience. Its modular approach and product suite cater to diverse client needs, from public administration to commercial enterprises. The business model focuses on software sales, customization, and ongoing support. The large user base and numerous references indicate a well-established ecosystem and customer trust. Growth potential lies in expanding digital services and integrating modern technologies such as AI, as hinted by recent updates. Partnerships appear focused on local government and cultural sectors, with no evident global expansion. Revenue streams likely include licensing, customization projects, and maintenance contracts.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and cookie consent implemented, reflecting compliance with GDPR requirements. However, the lack of visible security headers such as Content-Security-Policy or X-Frame-Options suggests potential areas for hardening. No incident response or security policy pages were found, indicating limited transparency in security governance. No vulnerabilities or exposed sensitive data were detected in the content. The absence of a vulnerability disclosure or security.txt file reduces the ability for external security researchers to report issues. Overall, the security posture is adequate for the business type but could benefit from formalized policies and enhanced technical controls.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  2. Publish explicit security policy and incident response documentation on the website to improve transparency and preparedness.
  3. Conduct regular security audits of third-party scripts and dependencies to identify and remediate vulnerabilities.
  4. Verify and update WHOIS domain registration information to enhance trust and domain legitimacy.
  5. Enhance accessibility features and performance optimizations to improve user experience and SEO.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
as4u.cz, s.r.o.
Description
Firma as4u.cz nabízí redakční systém Public4u, obchodní systém Shop4u a další aplikace pro města, firmy, kulturní zařízení a státní správu. Poskytuje řešení pro webové stránky, intranetové systémy, rezervační systémy a evidenci projektů s důrazem na legislativní požadavky a uživatelskou přívětivost.
Key services
redakční systém Public4u, obchodní systém Shop4u, intranetové a internetové aplikace na míru, rezervační a vstupenkový systém, datový sklad turistických informací
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, JavaScript, CSS
Frameworks
Public4u CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. WHOIS data is unavailable, which is unusual and reduces transparency.
  3. Strong presence in Czech government and municipal sectors.
  4. Good implementation of cookie consent and privacy policy.
  5. No visible security headers detected; opportunity for improvement.
  6. No terms of service or explicit security policy pages found.
  7. No social media links detected on the site.
  8. Contact information is clearly presented in footer.
  9. Website uses a proprietary CMS (Public4u) with jQuery and JavaScript.
  10. References include many Czech municipal and cultural institutions, indicating trust and market penetration.
Technical notes

Notes

The website uses a proprietary CMS (Public4u) with front-end technologies including jQuery and JavaScript. CSS is used for styling with separate stylesheets for screen and print media. The site is mobile responsive and includes SEO-friendly meta tags and Open Graph properties for social sharing. Performance is moderate, with multiple JavaScript files loaded, which could be optimized. No modern JavaScript frameworks (React, Angular, Vue) detected. Hosting provider details are not disclosed. The site lacks advanced accessibility features but maintains basic usability. There is no evidence of CDN usage or advanced caching mechanisms. Overall, the technical infrastructure is stable but could benefit from modernization and performance tuning.
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. 77/100Low23 findingsView report
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