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Security report for olomouc-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

Olomouc-katalog.cz is a regional online business directory focused on listing companies and tradesmen in the Olomouc region and broader Czech Republic. It operates as part of the larger Česko-Katalog.cz network, providing categorized business listings to facilitate consumer and business searches. The website targets local businesses and consumers seeking company information, offering a structured catalog of firms across various sectors. The business model centers on online directory services and advertising opportunities for listed companies. The site has been operational since at least 2014, indicating a stable presence in the regional market. Technically, the website employs a custom or unknown CMS with a technology stack including jQuery, Google Analytics, and Facebook SDK for tracking and social integration. The site uses HTTPS, ensuring encrypted communication, but lacks advanced security headers such as Content-Security-Policy or HSTS, which could enhance security posture. Performance and mobile optimization are basic, with room for improvement in accessibility and SEO practices. The site includes meta tags but lacks structured data markup. From a security perspective, the site demonstrates basic best practices such as HTTPS and no visible exposure of sensitive data. However, the absence of security headers and cookie consent mechanisms indicates gaps in compliance and security hardening. No incident response or security policy information is provided, and no vulnerability disclosure or security.txt files are found. The WHOIS data is consistent with the website's regional focus and business model, supporting legitimacy. Overall, the website is functional and moderately secure but would benefit from enhanced security measures, improved privacy compliance, and richer technical implementation to increase trust and user experience. Strategic recommendations include implementing security headers, adding cookie consent, improving contact transparency, and enhancing SEO and accessibility features.

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 olomouc-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.

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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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

Olomouc-katalog.cz operates as a regional business directory under the parent brand Česko-Katalog.cz, targeting local businesses and consumers in the Olomouc region and Czech Republic. Its competitive advantage lies in its localized focus and integration within a network of regional catalogs. The business model relies on listing fees and advertising services for companies seeking visibility. The target customers are small to medium-sized enterprises and consumers looking for trusted local service providers. Growth indicators include multiple related regional domains and consistent content updates. The partnership ecosystem includes related regional directories and external service providers linked via the parent domain. The company maintains a modest online presence with basic branding and content quality.

Security posture

The website maintains a basic security posture with HTTPS enabled and no visible exposure of sensitive data. However, it lacks critical security headers such as Content-Security-Policy, X-Frame-Options, and HSTS, which are important for mitigating common web attacks. There is no evidence of a formal security policy, incident response plan, or vulnerability disclosure program. Privacy compliance is partial, with a privacy policy present but no cookie consent mechanism despite use of tracking scripts. The absence of direct contact information and security contacts reduces transparency. Overall, the security maturity is low to moderate, with significant opportunities for improvement to meet GDPR and modern security standards.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and HSTS.
  2. Add a cookie consent banner/mechanism to comply with GDPR and inform users about tracking.
  3. Publish a clear security policy and incident response contact information to improve transparency and readiness.
  4. Enhance website accessibility and SEO by adding structured data (JSON-LD) and improving mobile responsiveness.
  5. Increase contact information visibility including verified company emails and phone numbers to boost business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Česko-Katalog.cz
Description
Online business directory focused on companies and tradesmen in Olomouc and Czech Republic regions, offering categorized listings of firms across multiple sectors.
Key services
Business listings, Categorized company search, Advertising and promotion services
Content quality
basic
Branding
moderate

Technology

Stack
jQuery, Google Analytics (ga.js), Facebook SDK
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
65/100
Good practices seen
  • HTTPS enabled
  • No visible exposed sensitive data
  • Use of Google site verification

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
TOPlist
Marketing tools
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 regional business directory for Olomouc and Czech Republic.
  2. Content is primarily in Czech language.
  3. No direct company contact emails or phone numbers found on this domain; contact likely centralized on main cesko-katalog.cz domain.
  4. No explicit cookie consent mechanism detected despite use of tracking scripts.
  5. Site uses HTTPS and includes Google site verification meta tag.
  6. No advanced security headers detected; opportunity for security improvements.
  7. No structured data (JSON-LD or Open Graph) found in the HTML.
  8. Multiple external links to partner and related regional directories.
  9. Basic SEO metadata present but description meta tag is empty.
  10. No visible social media links for the company on this page.
Technical notes

Notes

The website uses a custom or unknown CMS with a technology stack including jQuery, Google Analytics (ga.js), and Facebook SDK for social integration and tracking. It loads multiple CSS stylesheets from the parent domain and Google Fonts. The site uses HTTPS but lacks modern security headers. Performance is moderate with basic mobile optimization. The HTML is valid but lacks structured data such as JSON-LD or Open Graph tags. There is no evidence of a modern JavaScript framework or CMS like WordPress or Drupal. The site could benefit from modernization including improved accessibility, SEO, and security hardening.
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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