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Security report for cesko-katalog.cz

Česko katalog s.r.o. · Real Estate · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

49/100

Risk levelHigh

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

Česko katalog s.r.o. operates an established online business directory platform focused on the Czech Republic market, providing categorized listings and promotional services for companies across multiple sectors including real estate, transportation, retail, and services. The website serves both businesses seeking visibility and consumers searching for company information. The platform is supported by a network of regional sister catalogs, enhancing its market reach and positioning. Technically, the site uses a custom-built infrastructure with common web technologies such as jQuery and Facebook SDK, and it maintains moderate performance and basic mobile optimization. Security posture is adequate with HTTPS enabled and cookie consent implemented, though lacks advanced security headers and explicit incident response contacts. Privacy compliance is strong with clear GDPR-aligned policies and cookie management. Overall, the site is trustworthy and professionally maintained, with transparent WHOIS data confirming legitimacy.

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

9 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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 cesko-katalog.cz

This scan found 22 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
42
Security headers
40
Email security
70
DNS health
80
Network security
20
GDPR outside view
40
Average
49

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 solid position as a regional business directory with a clear business model based on listing services and advertising. Its competitive advantage lies in its extensive categorization and regional coverage through sister sites. Revenue likely derives from promotional listings and backlink services. The target customers include small to medium businesses and consumers in the Czech Republic. The presence of multiple related domains indicates a strategic ecosystem approach. Growth indicators include regular content updates and active marketing via Facebook and Toplist.cz. The company maintains a consistent brand and transparent business information, supporting credibility.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and cookie consent mechanisms in place, supporting GDPR compliance. However, the absence of explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces its defense-in-depth posture. No incident response or vulnerability disclosure information is provided, which could hinder rapid mitigation of security events. Third-party scripts like Facebook SDK and Toplist tracking pixels introduce potential risk vectors if not regularly audited. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security posture is functional but could be enhanced by adopting additional best practices and transparency measures.

Recommendations

  1. Implement security headers including Content Security Policy, HSTS, and X-Frame-Options to strengthen browser security.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and readiness.
  3. Regularly audit third-party scripts and dependencies to mitigate potential vulnerabilities.
  4. Enhance mobile optimization and accessibility to improve user experience across devices.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Legal name
Česko katalog s.r.o.
Registration number
IČ 042 79 221
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Česko katalog s.r.o.
Description
Online business directory cataloging companies across various sectors in the Czech Republic, offering categorized listings and services for businesses and consumers.
Key services
Company listings, Business promotion, Searchable categorized directory, Advertising and backlink services
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Facebook SDK, Google Fonts, Custom JavaScript, CSS stylesheets
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enabled
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Toplist.cz
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook SDK, Toplist.cz pixel
Marketing tools
Facebook SDK, Toplist.cz
Transparency
basic

Site quality

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

Key observations

  1. Website is a Czech business directory with extensive categorized listings.
  2. Clear privacy and cookie policies with GDPR compliance.
  3. No signs of adult or malicious content.
  4. Uses Facebook SDK and Toplist.cz for tracking and marketing.
  5. WHOIS data is transparent and consistent with business.
  6. No explicit security policy or incident response contacts found.
  7. No security headers detected in provided data; SSL is enabled.
  8. Multiple related regional catalog domains linked in footer.
Technical notes

Notes

The website uses a custom-built platform with standard web technologies such as jQuery and Facebook SDK for social integration and marketing. CSS stylesheets are well organized, and Google Fonts are used for typography. The site is hosted under the REG-INTERNET-CZ registrar with Forpsi name servers, indicating a Czech hosting environment. Performance is moderate with no major issues detected, though mobile optimization is basic. SEO is supported by proper meta tags and structured navigation. No CMS or major frameworks were detected, suggesting a bespoke solution. Technical risks include reliance on third-party scripts without visible integrity checks and lack of advanced security headers. Opportunities exist to modernize the tech stack and improve accessibility and performance.
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. 49/100High31 findingsView report
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