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Security report for reality-brno-venkov.cz

Český Internet s.r.o. · Real Estate · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

57/100

Risk levelMedium

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

Reality Brno-venkov is a Czech regional real estate listing platform operated by Český Internet s.r.o., focusing on properties for sale and rent in the Brno-venkov district. The site aggregates listings from verified real estate agencies and private sellers, providing advanced search filters and catalogs of agents and agencies. The business targets individuals and businesses interested in real estate within this region, positioning itself as a trusted local marketplace. Technically, the website employs modern JavaScript frameworks such as Vue.js and jQuery, integrates Google Analytics and Tag Manager for tracking, and uses cookie consent mechanisms to comply with GDPR. The site is mobile-optimized with good SEO practices and a professional design. Security-wise, HTTPS is enforced, but no explicit security headers or vulnerability disclosure mechanisms are present. The absence of WHOIS data for the domain reduces trust in domain legitimacy, though the website content and contact information support a legitimate business presence. Overall, the site demonstrates a moderate to good digital maturity with room for improvement in security and compliance transparency.

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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  3. 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 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 reality-brno-venkov.cz

This scan found 26 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
62
Security headers
35
Email security
60
DNS health
75
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 reality-brno-venkov.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for reality-brno-venkov.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

The platform operates in the real estate sector, serving a niche regional market in the Czech Republic. Its business model revolves around providing a centralized portal for property listings, connecting buyers, sellers, and real estate professionals. Revenue likely stems from advertising and listing fees from real estate agencies. The site maintains partnerships with multiple real estate agencies and integrates their listings, enhancing its market coverage. The company Český Internet s.r.o. appears to be the parent entity, providing infrastructure and operational support. The presence of multiple partner domains and a catalog of agents indicates a well-established ecosystem. Growth potential exists through expanding listings, improving user experience, and enhancing compliance and security features to build greater trust.

Security posture

The website enforces HTTPS, uses cookie consent banners, and integrates standard tracking scripts responsibly. However, the lack of visible security headers such as Content-Security-Policy, X-Frame-Options, and others is a gap that could expose the site to certain web-based attacks. No vulnerability disclosure or incident response information is provided, limiting transparency and preparedness for security incidents. The absence of WHOIS data for the domain is a concern, as it hinders verification of domain ownership and legitimacy. Overall, the security posture is moderate but could be significantly improved by implementing recommended headers, publishing security policies, and establishing a vulnerability disclosure program.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a security policy and incident response contact information on the website.
  3. Create and maintain a security.txt file to facilitate vulnerability reporting.
  4. Verify and update WHOIS domain registration information to improve trust and transparency.
  5. Regularly audit third-party scripts and tracking tools to minimize security risks.

Contact details published on the site

Addresses
Legal name
Český Internet s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Český Internet s.r.o.
Description
Realitní inzerce pro okres Brno-venkov. Nemovitosti na prodej či k pronájmu, prověřené RK i nabídky bez realitky.
Key services
Real estate listings for sale and rent, Catalog of real estate agencies, Catalog of real estate agents, Advanced property search filters
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Vue.js 3.2.37, Google Analytics, Google Tag Manager, Facebook SDK, AppConsent (cookie consent), Multiple Select plugin, Lazy loading images, Flatpickr date picker
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner present
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Facebook Analytics, Twitter Analytics
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Google Adsense, adv.ci.cz
Tracking pixels
Facebook SDK, Twitter Universal Website Tag
Marketing tools
AppConsent cookie consent
Transparency
basic

Site quality

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

Key observations

  1. Website is a regional real estate listing platform for Brno-venkov district in Czech Republic.
  2. Content is in Czech language with good localization and relevant metadata.
  3. No WHOIS data available, which is unusual and reduces domain trust.
  4. Uses modern JavaScript libraries and tracking tools.
  5. Includes cookie consent and privacy policy links indicating GDPR awareness.
  6. No visible security headers detected in provided data; SSL is enabled.
  7. No contact phone numbers explicitly labeled found; only email and physical address.
  8. No terms of service or security policy pages found.
  9. No vulnerability disclosure or security.txt present.
  10. No adult or questionable content detected.
Technical notes

Notes

The website uses a modern technology stack with Vue.js and jQuery, supported by Google Analytics and Tag Manager for analytics and marketing. It employs lazy loading for images and multiple select UI components for enhanced user experience. The site is mobile-optimized and uses responsive images for performance. However, no CMS or hosting provider details are explicitly detected. Performance is moderate, with potential improvements in accessibility and security headers. The site uses multiple external domains for advertising and tracking, which should be monitored for privacy compliance. Overall, the technical infrastructure is solid but could benefit from enhanced security and performance optimizations.
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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