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Security report for denikrevoluce.cz

Non-profit · 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

The website 'Deník revoluce' is a cultural and historical project dedicated to documenting the Velvet Revolution in Czechoslovakia, primarily through the perspective of Vladimír Hanzel, secretary to Václav Havel. Supported by the Václav Havel Library, it offers detailed daily chronicles and archival materials, targeting historians, researchers, and the general public interested in this pivotal period. The site operates as a non-profit educational resource with a niche focus. Technically, the site employs a custom PHP backend with gzip compression for assets and integrates Google Analytics and Tag Manager for visitor tracking. It uses HTTPS for secure communication but lacks advanced security headers and formal privacy or cookie policies, indicating room for improvement in compliance and security best practices. The site is moderately optimized for mobile and accessibility, with a straightforward navigation structure. From a security perspective, the site is accessible without WAF or blocking mechanisms, but the absence of WHOIS data limits domain trust evaluation. No critical vulnerabilities or exposed sensitive data were detected, but the lack of privacy and cookie policies and missing security headers reduce the overall security posture. The site’s content is safe, educational, and free from adult or questionable material. Overall, the site scores well in content quality and business credibility but should enhance privacy compliance and security measures. The domain’s legitimacy is supported by the association with the Václav Havel Library, despite missing WHOIS data. Strategic improvements in security headers, privacy disclosures, and domain transparency would strengthen trust and compliance.

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 denikrevoluce.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

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 denikrevoluce.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for denikrevoluce.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

Deník revoluce occupies a specialized niche in the cultural and historical sector, focusing on the Velvet Revolution and Václav Havel’s legacy. Its competitive advantage lies in its authoritative backing by the Václav Havel Library and access to original archival materials. The business model is non-commercial, relying on institutional support rather than revenue generation. The target audience includes academics, students, and history enthusiasts. Growth potential is tied to expanding digital archives and educational outreach. The partnership ecosystem is limited but credible, centered on the Václav Havel Library. Operationally, the site maintains a small footprint with focused content delivery and moderate technical infrastructure.

Security posture

The website demonstrates a basic to moderate security maturity level. HTTPS is enforced, ensuring encrypted communications. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options represents a gap in defense-in-depth strategies. No forms or inputs with evident vulnerabilities were found, and no sensitive data exposure was detected. The lack of privacy and cookie policies indicates compliance gaps with GDPR and related regulations. Incident response readiness and vulnerability disclosure mechanisms are not evident, which could hinder timely mitigation of security issues. Overall, the security culture appears minimal but adequate for a non-commercial archival site. Enhancements in policy transparency and header implementation are recommended.

Recommendations

  1. Implement comprehensive privacy and cookie policies to improve GDPR compliance and user trust.
  2. Add essential security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen security posture.
  3. Publish a security.txt file to facilitate vulnerability disclosure and incident response.
  4. Enhance mobile optimization and accessibility features to improve user experience across devices.
  5. Increase domain transparency by ensuring WHOIS data is available or justified if privacy protected.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
The website is a historical and cultural project documenting the revolution events in Czechoslovakia, particularly through the perspective of Vladimír Hanzel, secretary to Václav Havel. It is supported by the Václav Havel Library and provides detailed daily chronicles of events from 1989 to early 1990.
Key services
Historical daily chronicles, Archival content including images and videos, Educational resources about the Velvet Revolution
Content quality
good
Branding
consistent

Technology

Stack
Google Analytics, Google Tag Manager, jQuery (likely from js-default.js), Custom gzip PHP compression for CSS and JS
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced

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
excellent
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. No privacy, cookie, or terms of service policies found on the site.
  3. Contact information limited to a single feedback email in the footer.
  4. No phone numbers or physical addresses found.
  5. No security.txt or vulnerability disclosure information present.
  6. Site uses Google Analytics and Tag Manager for tracking.
  7. Content is focused on historical documentation of the Velvet Revolution.
  8. WHOIS data is missing, which limits domain trust assessment.
  9. Site uses HTTPS but lacks advanced security headers.
  10. No CMS or major platform detected; custom PHP-based site with gzip compression.
Technical notes

Notes

The website uses a custom PHP backend with gzip compression for CSS and JavaScript assets, improving load times moderately. It integrates Google Analytics and Google Tag Manager for visitor tracking, indicating a moderate level of digital maturity. The HTML structure is valid and includes meta viewport tags for responsiveness, though mobile optimization is basic. No major CMS or frameworks were detected, suggesting a bespoke or lightweight platform. Performance is moderate, with room for improvement in SEO and accessibility. The site lacks advanced technical SEO features and accessibility enhancements, which could be addressed to improve reach and 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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