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Security report for reistna.cz

Galerie Reistna · Other · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Email security and 1 other check.

Security score

58/100

Risk levelMedium

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

Galerie Reistna is a small, local art gallery based in Valtice, Czech Republic, offering exhibitions, ceramics workshops, and cultural events. The website serves as an informational portal for visitors and art enthusiasts, showcasing upcoming events and gallery news. The business operates primarily in the cultural and arts sector with a focus on regional engagement. Technically, the website is built on Joomla CMS using the Gantry framework and several JavaScript libraries such as jQuery and Bootstrap, providing a moderate level of performance and basic mobile optimization. Security-wise, the site uses HTTPS but lacks important security headers and published security policies, which could be improved to enhance trust and compliance. Privacy compliance is weak due to the absence of privacy and cookie policies, despite the use of Google Analytics tracking. Overall, the website is functional and professional but would benefit from enhanced privacy and security measures to align with best practices and regulatory requirements.

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

  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 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 reistna.cz

This scan found 24 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
85
Security headers
20
Email security
60
DNS health
75
Network security
100
GDPR outside view
10
Average
58

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 gallery positions itself as a cultural hub in the Valtice region, leveraging partnerships with local tourism and cultural organizations. Its business model revolves around hosting exhibitions, workshops, and events to attract visitors and art lovers. The presence of partner logos and external links indicates a collaborative ecosystem with regional stakeholders. Revenue streams likely include event participation, workshop fees, and possibly sponsorships. The target audience is the general public interested in arts and culture, with a focus on local and regional visitors. Growth indicators include ongoing event programming and active social media presence. The website content and structure support the gallery's mission but lack advanced digital marketing or e-commerce capabilities.

Security posture

The website demonstrates a basic security posture with HTTPS enabled, protecting data in transit. However, the absence of security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection reduces defense-in-depth. No forms or input fields are present on the homepage, minimizing attack surface, but the lack of published security or incident response policies indicates limited transparency and preparedness. The use of third-party tracking scripts without visible cookie consent mechanisms raises privacy compliance concerns under GDPR. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security maturity is moderate but could be significantly improved with standard security headers, privacy policies, and incident response disclosures.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie policy with GDPR compliance.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to enhance security posture.
  3. Introduce a cookie consent mechanism to inform users about tracking and obtain consent.
  4. Publish a vulnerability disclosure or security.txt file to improve transparency and incident response readiness.
  5. Improve mobile optimization and accessibility to enhance user experience across devices.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Galerie Reistna
Description
Galerie Reistna Valtice is an art gallery inviting visitors to its exhibition hall, ceramics studio, and various projects and events such as Listování Galerie Reistna and Tři grácie.
Key services
Art exhibitions, Ceramics studio, Workshops, Cultural events
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap, MooTools, Gantry Framework, RokBox, RokSprocket
Frameworks
Gantry
Platforms
Joomla CMS
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • No exposed sensitive data in HTML
  • Use of modern JS libraries

Analytics and tracking

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

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. No privacy, cookie, or terms of service policies found, indicating compliance gaps.
  3. Contact information is clearly provided with email and phone number.
  4. Website uses Joomla CMS with Gantry framework and several JavaScript libraries.
  5. Google Analytics and Tag Manager are used for tracking without visible cookie consent mechanism.
  6. Content is focused on art gallery and cultural events in Czech Republic.
  7. No security headers detected; HTTPS is enabled.
  8. Partner logos and external links indicate local cultural and tourism partnerships.
  9. No forms detected that collect user data directly on the homepage.
  10. No evidence of security or incident response policies published.
Technical notes

Notes

The website uses Joomla CMS with the Gantry framework, supplemented by JavaScript libraries including jQuery, Bootstrap, and MooTools. The site loads multiple CSS stylesheets and scripts for UI components like RokBox and RokSprocket slideshow. Performance is moderate with some asynchronous loading of analytics scripts. The site uses responsive design with a fixed width viewport of 960px, which limits mobile responsiveness. SEO is basic with meta keywords and description tags present but no Open Graph or JSON-LD structured data detected. Accessibility features are minimal, relying mostly on standard HTML semantics. Hosting is provided by REG-ZONER, a Czech hosting provider, consistent with the domain registration data. Overall, the technical infrastructure is stable but could benefit from modernization and enhanced SEO and accessibility features.
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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