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Security report for prodejzanejvic.cz

M&M reality · Real Estate · Czech Republic

Medium risk. 11 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

57/100

Risk levelMedium

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

The website prodejzanejvic.cz is a professional real estate auction platform operated by M&M reality, the largest and most trusted real estate agency in the Czech Republic. It specializes in selling properties via televised auctions, offering sellers the opportunity to achieve higher sale prices through competitive bidding. The platform integrates live auction broadcasts, detailed auction archives, and marketing plans to attract buyers and sellers. The target audience includes individuals and entities interested in buying or selling real estate within the Czech market. The business model revolves around auction-based real estate sales supported by comprehensive marketing and professional real estate services. Technically, the website is built on Joomla CMS and leverages modern web technologies including Google Fonts, Google Analytics, Google Tag Manager, and Google reCAPTCHA for security. Cookie consent is managed via CookieHub, ensuring compliance with privacy regulations. The site is mobile responsive, well-structured, and optimized for SEO, providing a good user experience. Performance is moderate with room for improvement in accessibility features. From a security perspective, the site enforces HTTPS, uses reCAPTCHA on forms to prevent abuse, and implements cookie consent mechanisms. However, it lacks explicit HTTP security headers and a vulnerability disclosure policy. No exposed sensitive data or vulnerable libraries were detected. The absence of WHOIS data limits domain trust assessment, but the website's professional presentation and integration with known partners suggest legitimacy. Overall, the website presents a low-risk profile with good security practices and compliance measures. Strategic recommendations include enhancing HTTP security headers, conducting regular security audits, improving accessibility, and publishing a vulnerability disclosure policy to further strengthen trust and security posture.

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

11 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 prodejzanejvic.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

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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
72
Security headers
30
Email security
45
DNS health
85
Network security
100
GDPR outside view
10
Average
57

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 prodejzanejvic.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for prodejzanejvic.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

M&M reality holds a strong market position as the largest real estate agency in the Czech Republic, leveraging televised auctions to differentiate its service offering. The business model focuses on auctioning properties to maximize sale prices, supported by extensive marketing campaigns across multiple channels including online portals, Facebook, radio, and real estate magazines. The platform attracts a broad customer base of buyers and sellers seeking transparent and competitive property sales. The integration with mmreality.cz and maminkysoutezi.cz indicates a partnership ecosystem enhancing reach and service diversity. Growth indicators include over 1,200 auctions conducted and a comprehensive archive of auction results, demonstrating operational scale and market penetration. The company targets residential and commercial real estate sectors, emphasizing transparency, professionalism, and customer satisfaction.

Security posture

The website demonstrates a mature security posture with mandatory HTTPS encryption and integration of Google reCAPTCHA to protect forms from automated abuse. Cookie consent is actively managed, reflecting awareness of privacy regulations such as GDPR. However, the absence of key HTTP security headers like Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options represents an area for improvement. No signs of exposed sensitive data or vulnerable third-party libraries were found in the HTML content. The lack of a published security policy or incident response contact limits transparency in security governance. Overall, the site is secure for typical user interactions but would benefit from enhanced security header implementation and formal vulnerability disclosure mechanisms.

Recommendations

  1. Implement comprehensive HTTP security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection to mitigate common web attacks.
  2. Maintain up-to-date Joomla CMS and all extensions to reduce risk of known vulnerabilities.
  3. Publish a vulnerability disclosure policy and security.txt file to improve transparency and facilitate responsible reporting.
  4. Enhance accessibility features to meet WCAG standards and improve user inclusivity.
  5. Regularly audit third-party scripts and integrations for security and privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
M&M reality
Description
V M&M Aukční síni prodáme Váš dům, byt či pozemek profesionálně té nejvyšší nabídce a za nejvyšší cenu! Zájemci o aukční nemovitosti přicházejí z M&M Reality, která je největší a nejdůvěryhodnější realitní kancelář v ČR. I díky tomu má největší množství zájemců. Makléři M&M Reality pro Vás zajistí nejobsáhlejší inzerci, skvěle připraví nemovitost, prodejní marketing a veškerý realitní servis.
Key services
Real estate auctions, Marketing and promotion of properties, Professional real estate sales services, Live TV auction broadcasts
Content quality
good
Branding
consistent

Technology

Stack
Joomla CMS, Google Fonts, Google Analytics, Google Tag Manager, Google reCAPTCHA, CookieHub (cookie consent), jQuery, FontAwesome, Custom JavaScript for auctions and forms
Frameworks
Joomla
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA on forms
  • Cookie consent mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
CookieHub, Google reCAPTCHA
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional real estate auction platform operated by M&M reality.
  2. Content is in Czech language targeting Czech market.
  3. No WHOIS data available, possibly due to privacy protection or registry restrictions.
  4. Site uses modern web technologies and security best practices like HTTPS and reCAPTCHA.
  5. Cookie consent is implemented via CookieHub.
  6. Contact information includes phone number and a detailed contact form with GDPR consent checkbox.
  7. No explicit security.txt or incident response contact found.
  8. No terms of service page detected.
  9. No suspicious or malicious content detected.
  10. Site is mobile responsive and well structured.
Technical notes

Notes

The website is built on Joomla CMS with a modern front-end leveraging Google Fonts, FontAwesome icons, and jQuery-based custom scripts for auction functionality and form handling. Google Analytics and Google Tag Manager are used for analytics and marketing tracking. CookieHub manages cookie consent, and Google reCAPTCHA protects forms. The site is mobile responsive with a clean layout and structured navigation. Performance is moderate, with some optimization possible in script loading and image handling. Accessibility is basic, with room for improvement in ARIA roles and keyboard navigation. SEO is well addressed with meta tags and Open Graph data. The lack of visible hosting provider information limits infrastructure assessment. Overall, the technical stack is stable and appropriate for the business needs but could benefit from modernization and enhanced security controls.
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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