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Security report for geckocb.cz

Marissa Yellow, s.r.o. · Retail · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

59/100

Risk levelMedium

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

Géčko Nákupní centrum is a large retail shopping center located in České Budějovice, Czech Republic, operated by Marissa Yellow, s.r.o. The website presents a professional and well-structured digital presence showcasing a variety of retail stores, restaurants, parking facilities, and customer services. The site targets general shoppers and families, positioning itself as a regional shopping destination with a broad tenant mix and community engagement. Technically, the website employs modern JavaScript libraries, cookie consent management, and analytics tools, ensuring a good user experience with mobile optimization and clear navigation. Security posture is solid with HTTPS enforced and cookie consent mechanisms, though some security headers are missing and no explicit security or incident response policies are published. The absence of WHOIS data reduces domain trustworthiness, but the website content and business information appear legitimate and professional. Overall, the site scores well in content quality, technical implementation, and privacy compliance, with room for improvement in business credibility and security transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, YouTube

      What to do: Document all third-party data sharing in your privacy policy

  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 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';…

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching geckocb.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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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
70
Email security
85
DNS health
75
Network security
20
GDPR outside view
40
Average
59

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 retail and hospitality sectors, managing a portfolio of shopping centers including Géčko and Citypark. The business model focuses on leasing commercial space to retail and food service tenants, supported by customer amenities such as parking and events. The company maintains active social media channels and a newsletter subscription with GDPR-compliant consent. The partnership with Giant for website development indicates a professional digital ecosystem. The lack of direct contact emails or phone numbers on the site suggests a preference for contact via forms or social media. The company appears well-positioned regionally with a consistent brand and a comprehensive offering for shoppers. Growth indicators include active promotions and events, and a portfolio of related shopping centers across multiple Czech cities.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and cookie consent management aligned with GDPR requirements. However, the absence of security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options is a gap that could be exploited. No security policy or incident response information is published, limiting transparency and preparedness communication. No vulnerability disclosure or security.txt file is present, which could hinder responsible vulnerability reporting. The site does not expose sensitive data in HTML and uses reputable third-party analytics and advertising services. Recommendations include implementing missing security headers, publishing security policies, and establishing a vulnerability disclosure process to enhance security posture and trust.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, and X-Frame-Options to mitigate common web attacks.
  2. Publish a clear security policy and incident response contact information to improve transparency and preparedness.
  3. Establish a vulnerability disclosure program and consider adding a security.txt file to facilitate responsible reporting.
  4. Enhance accessibility features to improve usability for all users and comply with standards.
  5. Verify and publish domain WHOIS information to improve domain trustworthiness and business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Marissa Yellow, s.r.o.
Description
Géčko is a shopping center located in České Budějovice, Czech Republic, offering a variety of retail stores, restaurants, and services including parking and family amenities.
Key services
Retail stores, Restaurants and cafes, Parking facilities, Customer services
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Google Analytics, Google Tag Manager, Flickity slider, Cookies Giant consent management
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent management
  • No exposed sensitive data in HTML

Analytics and tracking

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

Advertising

Ad networks
Adform
Tracking pixels
Adform
Marketing tools
Cookies Giant consent management
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and interactive features.
  2. No WHOIS data available, which is unusual and may indicate privacy protection or domain registration issues.
  3. Strong cookie consent and GDPR compliance mechanisms present.
  4. No direct company contact emails or phone numbers found on the homepage; contact is via forms and social media.
  5. Multiple social media profiles linked, indicating active engagement.
  6. No explicit security policy or incident response information published.
  7. No vulnerability disclosure or security.txt file found.
  8. Website uses modern JavaScript libraries and tracking tools.
  9. No adult or questionable content detected.
  10. Footer includes links to multiple related shopping centers, indicating a portfolio of properties.
Technical notes

Notes

The website uses modern front-end technologies including JavaScript, CSS, and HTML5 with libraries such as Flickity for sliders and Google Analytics and Tag Manager for analytics. Cookie consent is managed via Cookies Giant scripts, ensuring GDPR compliance. The site is mobile optimized with responsive design and good navigation clarity. Performance is moderate, with asynchronous loading of scripts and optimized images. No CMS or hosting provider information is explicitly detected. The technical implementation is solid but could benefit from enhanced security headers and accessibility improvements. The site integrates multiple external domains for social media, analytics, and advertising, which are well managed but require ongoing monitoring for security and privacy compliance.
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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