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Security report for as4u.cz

as4u.cz, s.r.o. · Technology · 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 technology company specializing in modular content management systems and business applications tailored for municipalities, companies, cultural institutions, and government entities. With over 20 years of market presence, the company offers products such as the Public4u editorial system, Shop4u e-commerce platform, and various custom intranet and reservation systems. Their client base includes numerous municipal websites and cultural portals, demonstrating a strong foothold in the regional public sector and business markets. The website reflects a professional and consistent brand image with clear service offerings and extensive references. Technically, the website is built on a proprietary CMS (Public4u) and utilizes jQuery and custom JavaScript for interactivity. The site is mobile-optimized, SEO-friendly, and performs moderately well. Privacy compliance is robust, featuring a comprehensive privacy policy and cookie consent mechanism aligned with GDPR requirements. However, no advanced security headers or incident response policies are publicly disclosed. From a security perspective, the site enforces HTTPS and avoids exposing sensitive data. The absence of WHOIS registration data is a concern, potentially indicating privacy protection or domain registration issues, which slightly impacts trustworthiness. No signs of malware, phishing, or vulnerabilities were detected in the visible content. Overall, the security posture is solid but could be enhanced by publishing explicit security policies and implementing additional HTTP security headers. The overall risk assessment is moderate with a recommendation to verify domain registration details and improve security transparency. The company demonstrates a mature digital presence with a focus on privacy and user experience, making it a credible and trustworthy service provider in its niche.

Scanned

This is an earlier scan of as4u.cz. View the latest report

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

€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

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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

as4u.cz, s.r.o. operates in the technology sector with a focus on software solutions for government, municipalities, and businesses. Their competitive advantage lies in long-term market experience, a modular and flexible product suite, and a strong client portfolio including public institutions and cultural organizations. The business model revolves around software licensing, custom development, and support services. Revenue streams likely include software sales, maintenance contracts, and consulting. Target customers are primarily public sector entities and medium to large enterprises requiring tailored web and intranet solutions. Growth indicators include a large user base and extensive references. The company maintains a partner ecosystem evident from linked municipal and cultural websites. Strategic observations suggest a stable operation with potential for expansion into broader markets or enhanced digital services.

Security posture

The current security maturity level is moderate to good. The website uses HTTPS and has implemented cookie consent mechanisms, indicating awareness of privacy and security best practices. However, the lack of visible security headers such as Content-Security-Policy and absence of published security or incident response policies suggest room for improvement. No vulnerabilities or exposed sensitive data were detected in the HTML content. Compliance with GDPR is evident through privacy policies and cookie management. Incident response readiness and security culture indicators are not publicly documented, which could be a gap in transparency. Overall, the security posture supports business operations but would benefit from enhanced documentation and technical controls.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to improve defense-in-depth.
  2. Publish explicit security policies and incident response procedures on the website to increase transparency and trust.
  3. Verify and update WHOIS domain registration information to ensure consistency and improve domain trustworthiness.
  4. Conduct regular security audits of third-party scripts and custom code to identify and mitigate potential vulnerabilities.
  5. Enhance accessibility features to meet higher compliance standards and improve user experience for all visitors.
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.
Key services
Redakční systém Public4u, Obchodní systém Shop4u, Intranetové a internetové aplikace na míru, Rezervační a vstupenkové systémy, Datový sklad turistických informací
Content quality
good
Branding
consistent

Technology

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

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

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 missing, which is unusual and reduces domain trust.
  3. Strong presence in Czech market with many references to municipal and cultural clients.
  4. Good privacy and cookie policy implementation with GDPR compliance.
  5. No explicit security policy or incident response information found.
  6. No visible analytics or advertising scripts detected, indicating privacy-conscious approach.
  7. Website uses a proprietary CMS (Public4u) with custom JavaScript and jQuery.
  8. Mobile optimization and SEO are well addressed.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on a proprietary CMS named Public4u, utilizing jQuery and custom JavaScript libraries for UI and functionality. CSS is used for styling with separate stylesheets for screen and print media. The site is mobile responsive and optimized for various devices. Performance is moderate, with no major issues detected in the HTML content. SEO is supported by meta tags, Open Graph tags, and structured navigation. No modern JavaScript frameworks (e.g., React, Angular) were detected, indicating a traditional web architecture. Hosting provider details are not disclosed. Technical risks include potential outdated libraries and lack of advanced security headers. Opportunities exist to modernize the tech stack and improve performance and security through best practices.
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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