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Security report for brno-katalog.cz

Česko-Katalog.cz · Other · Czech Republic

High risk. 12 critical or high findings in GDPR outside view, Security headers and 3 other checks.

Security score

44/100

Risk levelHigh

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

Brno-katalog.cz is a Czech regional online business directory operated under the parent brand Česko-Katalog.cz, established in 2014. The site provides categorized listings of companies and services primarily focused on the Brno region, targeting both businesses and consumers seeking local company information. The business model centers on offering searchable company listings and promotional opportunities within a structured catalog format. Technically, the website uses standard web technologies including jQuery, Google Analytics, and Facebook SDK, hosted on Czech infrastructure with HTTPS enabled. The site demonstrates basic mobile optimization and SEO practices but lacks advanced security headers and cookie consent mechanisms. Security posture is moderate with no critical vulnerabilities detected but room for improvement in headers and privacy compliance. Overall, the website is functional and trustworthy for its purpose but would benefit from enhanced security and privacy features to improve compliance and user trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

12 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 brno-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
65
DNS health
85
Network security
20
GDPR outside view
10
Average
44

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 website holds a regional market position as a local business directory for Brno and other Czech cities, supported by a network of sister sites under the Česko-Katalog.cz brand. Its competitive advantage lies in localized content and categorized listings, appealing to small and medium businesses seeking visibility. Revenue likely derives from advertising and promotional services offered to listed companies. The target customer segments include local businesses and consumers searching for company information. The partnership ecosystem includes related regional directories and external service providers linked in the footer. Growth indicators are limited from the data but the domain age and network suggest stable operations. Strategic observations include the need to modernize technical infrastructure and enhance privacy compliance to maintain competitiveness.

Security posture

The security maturity level is moderate. HTTPS is enforced, and no exposed sensitive data or vulnerable libraries were detected. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and HSTS reduces the overall security posture. There is no visible incident response or security contact information, which limits readiness for security events. GDPR compliance is partially addressed via a privacy policy but lacks cookie consent mechanisms. The use of third-party tracking scripts (Google Analytics, Facebook SDK) introduces privacy considerations. Overall, the site is functional but would benefit from implementing security best practices and formalizing incident response capabilities.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and HSTS to enhance protection against common web attacks.
  2. Add a cookie consent banner and detailed cookie policy to improve GDPR compliance and user transparency.
  3. Publish explicit security and incident response policies with dedicated contact channels to improve trust and readiness.
  4. Enhance mobile responsiveness and accessibility to improve user experience and SEO performance.
  5. Regularly audit third-party scripts and tracking to ensure privacy compliance and minimize user tracking.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Česko-Katalog.cz
Description
Online business directory focused on companies and services in Brno and other Czech regions, providing categorized listings of firms across multiple sectors.
Key services
Business listings, Company categorization, Searchable directory, Advertising and promotion services
Content quality
basic
Branding
moderate

Technology

Stack
jQuery, Google Analytics, Facebook SDK, CSS stylesheets
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • HTTPS enforced
  • No visible exposed sensitive data
  • Use of Google Analytics and Facebook SDK asynchronously

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook SDK
Transparency
basic

Site quality

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

Key observations

  1. Website is a Czech regional business directory focused on Brno and other Czech cities.
  2. Content is primarily in Czech language with structured company categories.
  3. No explicit contact emails or phone numbers found on the main page.
  4. Privacy policy and terms of service pages exist but are basic.
  5. No cookie consent banner or explicit cookie policy detected.
  6. Uses Google Analytics and Facebook SDK for tracking.
  7. No advanced security headers detected; HTTPS is enabled.
  8. No visible security or incident response contact information.
  9. Website design and content quality are basic but functional.
  10. No adult or questionable content detected.
Technical notes

Notes

The website uses a traditional web stack with jQuery and asynchronous loading of Google Analytics and Facebook SDK scripts. CSS is loaded from a centralized parent domain, indicating a shared infrastructure with sister sites. The domain is hosted under Czech registrar REG-INTERNET-CZ with DNS servers ns.forpsi.net and ns.forpsi.it, consistent with regional hosting. Performance is moderate with no explicit indicators of slow loading but no advanced optimization detected. The site lacks modern frameworks or CMS indications, suggesting a custom or legacy platform. Technical debt is implied by basic design and limited mobile optimization. Opportunities exist to modernize the tech stack, improve accessibility, and implement security headers to reduce technical risks.
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. 44/100High31 findingsView report
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