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Security report for knowlimits.cz

KNOWLIMITS Group a.s. · Media · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

51/100

Risk levelMedium

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

KNOWLIMITS Group a.s. is the largest independent Czech communication group specializing in comprehensive marketing and media services. Their offerings span strategy, media planning, digital and social media, creative production, retail marketing, data research, PR, and events. The group operates across 15 European markets with a significant turnover, positioning itself as a major player in the regional media industry. The website reflects a professional and consistent brand image, targeting businesses seeking integrated communication solutions. Technically, the site is built on WordPress with Bootstrap and jQuery, supporting multilingual content via WPML and optimized for mobile devices. Google Tag Manager is used for analytics and marketing tracking, indicating a mature digital infrastructure. Security posture is moderate with HTTPS implied but lacking explicit security headers and formal privacy/cookie policies, which are critical for compliance and trust. WHOIS data is unavailable, which raises concerns about domain registration transparency but does not detract from the professional presentation and business legitimacy evident on the site. Overall, the site is well-designed and functional but would benefit from enhanced security and privacy compliance measures.

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

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 knowlimits.cz

This scan found 23 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
95
Security headers
15
Email security
80
DNS health
85
Network security
20
GDPR outside view
10
Average
51

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention knowlimits.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for knowlimits.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

KNOWLIMITS holds a strong market position as the largest independent communication group in the Czech Republic, with a broad service portfolio and presence in multiple European countries. Their business model focuses on delivering data-driven, technology-enhanced marketing solutions with a human-centric approach. The group comprises multiple subsidiaries specializing in various communication disciplines, enabling comprehensive campaign management. Revenue streams likely include consulting, media buying, creative services, and event management. The target customers are enterprises and organizations requiring integrated marketing communications. The company demonstrates growth through geographic expansion and investment in AI and research projects. Partnerships and social media presence support brand visibility and client engagement. Strategic observations suggest a focus on innovation, flexibility, and local market adaptation to maintain competitive advantage.

Security posture

The website demonstrates a basic to moderate security maturity level. HTTPS is enforced, ensuring encrypted communications. However, the absence of key security headers such as Content Security Policy, X-Frame-Options, and HSTS reduces protection against common web attacks. No evidence of exposed sensitive data or vulnerable libraries was found in the HTML source. The lack of published security policies, incident response contacts, or vulnerability disclosure mechanisms indicates gaps in security governance and transparency. Compliance with GDPR is uncertain due to missing privacy and cookie policies and no visible consent mechanisms. The use of Google Tag Manager introduces third-party script risks that require ongoing monitoring. Overall, while no critical vulnerabilities are apparent, the site would benefit from implementing security best practices and formalizing compliance documentation to enhance trust and resilience.

Recommendations

  1. Implement comprehensive privacy and cookie policies with explicit user consent mechanisms to ensure GDPR compliance.
  2. Add and configure essential security headers (CSP, HSTS, X-Frame-Options) to strengthen web security posture.
  3. Publish an incident response plan and vulnerability disclosure policy to improve transparency and readiness.
  4. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  5. Verify and update WHOIS domain registration information to enhance domain legitimacy and trust.

Contact details published on the site

Addresses
Legal name
KNOWLIMITS Group a.s.
VAT number
CZ699004959
Registration number
24179396
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
KNOWLIMITS Group a.s.
Description
KNOWLIMITS is the largest independent Czech communication group offering tailored data-driven marketing and media solutions across all channels, combining human expertise with technology and proprietary planning tools.
Key services
Strategy and consulting, Media planning and buying, Digital and social media, Creative and production, Instore and retail marketing, Data and research, PR and events
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Bootstrap 5, jQuery, Google Tag Manager, Yoast SEO, WPML (multilingual plugin)
Frameworks
Bootstrap
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced (implied by canonical URL and Google Tag Manager usage)
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

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.
  2. No privacy or cookie policies found, indicating compliance gaps.
  3. WHOIS data unavailable, which is a concern for domain legitimacy.
  4. Professional branding and consistent subsidiary information.
  5. Use of modern web technologies and SEO best practices.
  6. Contact information clearly provided with company details.
  7. No security headers detected in HTML source; potential improvement area.
  8. Google Tag Manager used for analytics and marketing tracking.
Technical notes

Notes

The website is built on a modern and widely supported technology stack including WordPress CMS, Bootstrap 5 framework, and jQuery library. It uses WPML for multilingual support and Yoast SEO for search engine optimization. Google Tag Manager is integrated for analytics and marketing purposes. The site demonstrates good mobile responsiveness and clear navigation structure. Performance appears moderate, with potential for optimization in loading speed and accessibility features. The absence of explicit hosting provider information limits infrastructure assessment. Technical debt is minimal based on visible code quality, but security enhancements and privacy compliance require attention to reduce operational 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. 48/100High36 findingsView report
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