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Security report for sreality.cz

Sreality.cz · Real Estate · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view and Security headers.

Security score

69/100

Risk levelMedium

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

Sreality.cz is the largest real estate marketplace in the Czech Republic, offering a comprehensive database of properties including apartments, houses, new developments, commercial spaces, and land plots for sale and rent. The platform is affiliated with Seznam.cz, a major Czech internet company, which enhances its market credibility and reach. The website targets individuals and businesses seeking real estate solutions within the Czech market. Technically, the site is built using modern web technologies such as React and Next.js, providing a responsive and user-friendly experience across devices. While the site enforces HTTPS and uses various third-party analytics and advertising services, explicit security headers and privacy policies were not detected in the provided HTML content, indicating areas for improvement in compliance and security transparency. The absence of WHOIS data limits domain registration trust analysis, but the professional presentation and affiliation with a reputable parent company support its legitimacy.

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

6 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 Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

  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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

Need hands-on remediation? Email guard@offseq.com

Keep watching sreality.cz

This scan found 19 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
50
Email security
85
DNS health
75
Network security
100
GDPR outside view
10
Average
69

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

Sreality.cz holds a dominant position in the Czech real estate market as a leading online platform for property listings. Its business model revolves around providing a marketplace for property sales and rentals, serving a broad audience including private individuals and commercial clients. The affiliation with Seznam.cz provides strategic advantages in terms of brand recognition and integration with other internet services. The platform leverages advertising and tracking technologies to monetize and optimize user engagement. Growth indicators include a large volume of listings and continuous technological updates. Partnerships with advertising networks and analytics providers support its marketing ecosystem. The company operates primarily in the real estate sector within the Czech Republic, focusing on digital real estate services.

Security posture

The website demonstrates a moderate to good security posture with enforced HTTPS ensuring encrypted communications. However, the lack of visible security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection suggests potential gaps in defense-in-depth strategies. The use of multiple third-party scripts and trackers increases the attack surface and necessitates rigorous monitoring for vulnerabilities. No explicit incident response or security policy information was found, indicating a possible area for enhancement in transparency and readiness. Compliance with GDPR and other data protection regulations is not clearly evidenced by the presence of privacy or cookie policies in the analyzed content. Overall, the security posture is adequate but could benefit from improved header configurations and clearer compliance documentation.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies to enhance GDPR compliance and user trust.
  2. Add and configure security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to strengthen security posture.
  3. Conduct regular audits of third-party scripts and tracking services to mitigate potential vulnerabilities.
  4. Provide clear contact information for security incidents and designate an incident response contact channel.
  5. Enhance accessibility features and SEO metadata to improve user experience and search engine visibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sreality.cz
Description
Největší nabídka nemovitostí v ČR: 102 393 realit. Nabízíme byty, domy, novostavby, nebytové prostory, pozemky a další reality k prodeji i pronájmu.
Key services
Real estate listings, Property sales, Property rentals, Commercial spaces, Land plots
Content quality
good
Branding
consistent

Technology

Stack
React (Next.js), JavaScript, CSS, HTML5
Frameworks
Next.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced

Analytics and tracking

Services
Gemius, Hotjar, Sentry
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
PubMatic, Criteo, Adnxs
Tracking pixels
Gemius, Hotjar, Sentry
Marketing tools
Seznam.cz marketing tools
Transparency
good

Site quality

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

Key observations

  1. Website is a major real estate marketplace in the Czech Republic.
  2. Affiliated with Seznam.cz, a reputable Czech internet company.
  3. No WHOIS data available from CZ.NIC WHOIS server, possibly due to registry policy or privacy.
  4. Website uses modern web technologies and is mobile optimized.
  5. No explicit security headers detected in provided data; HTTPS is enforced.
  6. No contact emails or phone numbers explicitly found in the HTML content provided.
  7. No privacy, cookie, or terms of service pages explicitly detected in the HTML snippet.
  8. Extensive use of third-party tracking and advertising services.
  9. No adult or questionable content detected.
  10. No WAF or blocking detected; content fully accessible.
Technical notes

Notes

The website is built on a modern React-based framework (Next.js), enabling server-side rendering and improved performance. The use of asynchronous JavaScript loading and prefetching indicates optimization efforts. Mobile optimization is good, with responsive design and preloaded images for faster rendering. However, accessibility features appear basic, and no CMS was explicitly detected. Hosting provider details are not evident from the HTML content. Performance is moderate, with room for improvement in loading times and resource management. The technical stack supports scalability and maintainability but requires attention to security headers and privacy compliance to reduce 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. 69/100Medium28 findingsView report
  2. 69/100Medium27 findingsView report
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