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Security report for espolubydleni.cz

eSPOLUBYDLENI.cz · Real Estate · Czech Republic

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

Security score

44/100

Risk levelHigh

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

eSPOLUBYDLENI.cz is a Czech Republic-based online classifieds platform specializing in shared housing, roommate searches, and apartment rentals. Established in 2007, it positions itself as the largest classifieds server in the Czech Republic for these services, offering over 8,000 listings primarily targeting individuals seeking affordable housing options in major Czech cities such as Prague, Brno, and Ostrava. The platform provides key services including listing submissions, email alerts for new offers, and a map-based search interface. Technically, the website employs standard web technologies including HTML5, CSS, JavaScript with jQuery and Fancybox libraries, and integrates advertising via Google Adsense and Facebook SDK. The site is mobile-optimized and offers a good user experience with clear navigation and relevant content.

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 espolubydleni.cz

This scan found 27 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
20
Email security
70
DNS health
80
Network security
20
GDPR outside view
10
Average
44

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

The business operates in the real estate sector focusing on shared housing and rentals, targeting students, young professionals, and individuals seeking roommates. Its business model is based on free listing submissions and monetization through advertising networks. The domain's longevity since 2007 indicates stable market presence. Partnerships with real estate portals and camping sites enhance its ecosystem. The platform's competitive advantage lies in its niche focus on roommate and shared housing classifieds in the Czech market. Growth potential exists through improved privacy compliance and enhanced security measures.

Security posture

The website enforces HTTPS, which is a fundamental security measure. However, it lacks several important security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options, and others that help mitigate common web vulnerabilities. No evidence of exposed sensitive data or vulnerable libraries was found. The use of third-party scripts like Google Adsense and Facebook SDK introduces typical tracking and advertising risks but no direct vulnerabilities were detected. The absence of a published security policy or incident response contact reduces transparency and preparedness. Overall, the security posture is moderate but could be significantly improved by implementing recommended headers and policies.

Recommendations

  1. Implement comprehensive privacy and cookie policies to comply with GDPR and enhance user trust.
  2. Add security headers including CSP, HSTS, X-Frame-Options, X-XSS-Protection, and Referrer-Policy to strengthen security posture.
  3. Publish a security policy and provide clear incident response contact information to improve transparency and readiness.
  4. Regularly audit and update third-party scripts to minimize security risks from external dependencies.
  5. Enhance accessibility features and conduct performance optimizations to improve user experience and SEO.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
eSPOLUBYDLENI.cz
Description
Největší inzerce v ČR, více jak 8.000 nabídek spolubydlení a pronájem byty bez provize, spolubydlící, nájem, podnájem, bydlení mapa spolubydlení Praha, Brno, Ostrava, Plzeň Liberec Jihlava Olomouc..pokoje bez realitky
Key services
Listing of shared housing offers, Roommate search, Apartment rental advertisements, Email alert for new offers
Content quality
good
Branding
moderate

Technology

Stack
HTML5, CSS, JavaScript, jQuery, Fancybox, Google Adsense, Facebook SDK
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
65/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of async loading for scripts

Analytics and tracking

Tracking level
moderate
Privacy practices
poor

Advertising

Ad networks
Google Adsense
Tracking pixels
Facebook SDK
Marketing tools
Google Adsense, Facebook SDK
Transparency
basic

Site quality

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

Key observations

  1. Website is a Czech classifieds platform specializing in shared housing and rentals.
  2. No explicit privacy, cookie, or terms of service policies found.
  3. Contact information is available but no dedicated contact page or security contact.
  4. Uses Google Adsense and Facebook SDK for advertising and tracking.
  5. No advanced security headers detected; HTTPS is used.
  6. Domain is well aged and consistent with business claims.
  7. Content is safe and targeted at general audience seeking housing.
Technical notes

Notes

The website uses a traditional web stack with HTML5, CSS, and JavaScript, leveraging jQuery and Fancybox for UI enhancements. It integrates Google Adsense for monetization and Facebook SDK for social media features. The site is mobile-optimized with responsive design elements. Hosting and domain registration are stable and consistent with the business profile. Performance is moderate with room for improvement in loading speed and accessibility. No CMS was explicitly detected, suggesting a custom or lightweight platform. The technical infrastructure supports the business needs but would benefit from modernization and enhanced security configurations.
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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