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Security report for rezidenceblizka.cz

Horizon Holding · Real Estate · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

50/100

Risk levelMedium

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

Rezidence Blízká is a real estate development project offering modern residential apartments in the Karlín district of Prague. The project is managed by Horizon Holding, a large and established real estate developer in Prague since 2001. The website presents a professional and user-friendly interface with clear navigation, detailed project descriptions, and multiple contact options including a named sales representative. Technically, the site uses modern frameworks such as Bootstrap, integrates Google Maps for location visualization, and employs analytics tools like Microsoft Clarity and Google Tag Manager. Security posture is generally good with HTTPS enforced and cookie consent mechanisms implemented; however, the absence of security headers and lack of explicit security or incident response policies are areas for improvement. The missing WHOIS data reduces transparency and trust slightly but does not detract significantly from the overall legitimacy of the business. Privacy compliance is strong with a comprehensive GDPR policy and cookie management. Overall, the site is well-positioned to serve its target audience of prospective apartment buyers in Prague.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

7 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, YouTube, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

  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 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';…

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Keep watching rezidenceblizka.cz

This scan found 24 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
62
Security headers
45
Email security
70
DNS health
75
Network security
20
GDPR outside view
25
Average
50

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

Horizon Holding operates as a major real estate developer in Prague, focusing on residential projects like Rezidence Blízká. Their business model centers on property development and sales, targeting middle to upper-class home buyers seeking modern living spaces in central Prague. The company leverages certifications such as BREEAM to enhance market appeal and sustainability credentials. Their digital presence includes social media channels and a professional website that supports lead generation through contact forms and direct sales contacts. The company’s market position is strong, supported by a history dating back to 2001 and a portfolio of multiple projects. The website’s integration of analytics and marketing tools indicates a mature digital marketing strategy. Strategic partnerships appear limited to internal subsidiaries or parent company branding, with no suspicious or unrelated domains detected.

Security posture

The website demonstrates a moderate to good security posture. HTTPS is properly implemented, ensuring encrypted communications. Cookie consent and privacy policies align with GDPR requirements, indicating compliance awareness. However, the absence of visible security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces defense-in-depth. No explicit security or incident response policies are published, which could hinder transparency and preparedness in case of incidents. The use of third-party scripts (Google Tag Manager, Microsoft Clarity) introduces potential risk vectors that require ongoing monitoring. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security posture is adequate for a real estate website but could be enhanced by implementing recommended headers and publishing security policies.

Recommendations

  1. Implement standard security headers (CSP, HSTS, X-Frame-Options) to improve protection against common web attacks.
  2. Publish explicit security and incident response policies to increase transparency and preparedness.
  3. Regularly audit and update third-party scripts to mitigate supply chain risks.
  4. Enhance accessibility features to meet WCAG standards and improve user experience for all visitors.
  5. Consider adding a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Horizon Holding
Description
Rezidence Blízká is a residential real estate project offering modern apartments in Prague 8 - Karlín, combining modern living with the historic spirit of the area. The project features six residential buildings with apartments ranging from 1+kk to 4+kk, including premium penthouse apartments. The location offers proximity to culture, gastronomy, parks, and excellent civic amenities.
Key services
Residential apartment sales, Real estate development, Customer support and consultation
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap, Google Maps API, Google Tag Manager, Microsoft Clarity, jQuery
Frameworks
Bootstrap
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

Services
Microsoft Clarity, Google Analytics (via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads
Tracking pixels
Microsoft Clarity, Google Analytics (via GTM)
Marketing tools
Microsoft Clarity
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. WHOIS data is unavailable, which is unusual and reduces transparency.
  3. Comprehensive cookie consent and privacy policy are implemented.
  4. Contact information is clearly provided with named sales representative.
  5. Use of modern web technologies and analytics tools is evident.
  6. No security headers detected in provided data; potential area for improvement.
  7. No terms of service or explicit security policy pages found.
  8. Website content is professionally presented and relevant to real estate buyers.
  9. Social media presence includes Facebook and YouTube channels linked to Horizon Holding.
Technical notes

Notes

The website is built using Bootstrap framework and includes jQuery, Google Maps API, Google Tag Manager, and Microsoft Clarity for analytics and user behavior tracking. The site is mobile responsive with good SEO metadata including Open Graph tags and canonical links. Performance is moderate, with asynchronous loading of analytics scripts to reduce blocking. The site lacks a detected CMS, suggesting a custom or static site build. Hosting provider details are not discernible from the HTML content. Accessibility is basic but could be improved. The site uses a cookie consent banner and modal with granular controls, reflecting good privacy practices. Overall, the technical implementation is solid but could benefit from enhanced security headers and accessibility improvements.
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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