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Security report for jsbr.cz

JSB realitní · Real Estate · Czech Republic

High risk. 10 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

45/100

Risk levelHigh

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

JSB realitní is a small Czech Republic-based real estate company specializing in brokerage services for residential and commercial properties, including sales, rentals, and problematic property solutions such as debt and foreclosure management. The company also operates a related construction business for property renovations. The website is professionally designed with clear navigation and relevant content targeting local clients in Prague and surrounding areas. However, the absence of WHOIS data and security policies reduces trustworthiness. Technically, the site uses common web technologies like jQuery and Bootstrap but lacks visible HTTPS and security headers, which are critical for secure operations. No privacy or cookie policies are present, indicating compliance gaps. Overall, the business appears legitimate but would benefit from improved security and 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

10 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 jsbr.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.

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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
15
Email security
70
DNS health
90
Network security
20
GDPR outside view
10
Average
45

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 jsbr.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for jsbr.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

JSB realitní holds a niche position in the local real estate market, focusing on comprehensive client services including legal and financial support, which differentiates it from basic brokers. The company targets individuals and businesses needing property transactions and renovations. Its partnership with a construction firm and other related businesses suggests a small but integrated service ecosystem. The business model relies on brokerage commissions and construction services. The website content and contact details support credibility, though the lack of WHOIS transparency and security policies may impact customer trust and regulatory compliance.

Security posture

The website currently exhibits a low security posture due to missing HTTPS confirmation, absence of security headers, and lack of privacy and cookie policies. No incident response or vulnerability disclosure mechanisms are present. The site does not collect user data via forms, reducing attack surface, but the lack of visible security best practices and WHOIS transparency are concerns. The business should prioritize implementing HTTPS, security headers, privacy compliance, and a vulnerability disclosure policy to improve security maturity and customer trust.

Recommendations

  1. Implement HTTPS with a valid SSL/TLS certificate and enforce secure connections site-wide.
  2. Add standard security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a comprehensive privacy policy and cookie consent mechanism to comply with GDPR and other regulations.
  4. Establish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  5. Verify and update WHOIS registration data to improve domain trust and legitimacy.

Contact details published on the site

Addresses
Legal name
JSB realitní
Registration number
274 35 725
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
JSB realitní
Description
JSB realitní is a real estate company operating since 2014, providing brokerage services for buying, selling, and renting residential and commercial properties. They also offer legal and financial services, property reconstruction, and solutions for problematic properties including debt and foreclosure issues.
Key services
Property sales, Property rentals, Legal and financial brokerage services, Property reconstruction and renovation, Problematic property debt resolution and purchase
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap, Font Awesome, Owl Carousel, Modernizr
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
40/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content in Czech language
  2. No privacy or cookie policy found, which is a compliance gap
  3. No visible security headers or HTTPS status information
  4. WHOIS data is missing, which is unusual and reduces domain trust
  5. Contact information is clearly presented with company registration number
  6. No forms detected on the site, reducing data collection risks
  7. No social media links found
  8. External links mostly to partner or related business domains
Technical notes

Notes

The website uses a traditional front-end stack including jQuery, Bootstrap, Font Awesome, and Owl Carousel for UI components and responsiveness. The site is mobile optimized with good navigation and content structure. However, no CMS or hosting provider information is evident. Performance is moderate with no explicit optimization indicators. Accessibility is basic with no ARIA or advanced features detected. SEO is basic with meta tags present but no structured data or Open Graph tags found. The absence of HTTPS and security headers is a technical risk. The site does not use analytics or tracking scripts, which limits data collection but also marketing insights.
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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