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Security report for ostravainfo.cz

Černá louka s.r.o. · Hospitality · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

67/100

Risk levelMedium

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

OstravaInfo is an official city guide and information portal for Ostrava, Czech Republic, operated by Černá louka s.r.o. The website provides comprehensive event listings, tourist information, accommodation details, and an e-shop for souvenirs. It targets tourists and local residents seeking cultural and practical information about Ostrava. The site is well-branded and maintains partnerships with official city and regional entities, enhancing its market position as a trusted local resource. Technically, the website uses a mix of legacy and modern web technologies including jQuery 1.11.3, Google Tag Manager, and Facebook Pixel for analytics and marketing. The site is mobile optimized and provides a good user experience with clear navigation and relevant content. However, some technical debt is noted with the use of an outdated jQuery version and lack of explicit security headers. From a security perspective, the site enforces HTTPS and implements cookie consent mechanisms compliant with GDPR. No critical vulnerabilities or exposed sensitive data were detected. However, the absence of WHOIS data and security headers slightly reduces the overall security posture. There is no visible incident response or vulnerability disclosure information, which could be improved to enhance trust. Overall, OstravaInfo presents a professional and trustworthy online presence for its business domain. The main risk factor is the lack of WHOIS transparency, which should be addressed to improve domain legitimacy and trust. Strategic improvements in security headers and updating legacy libraries are recommended to strengthen the security posture.

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

7 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 ostravainfo.cz

This scan found 21 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
72
Security headers
20
Email security
87
DNS health
80
Network security
100
GDPR outside view
40
Average
67

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

OstravaInfo operates as an important entity in the hospitality and tourism sector, serving as the official information and event guide for the city of Ostrava. Its business model revolves around providing curated local content, event promotion, and souvenir sales through an integrated e-shop. The company leverages partnerships with local government and tourism organizations to maintain authoritative content and market reach. The target customers include tourists, event attendees, and local residents. The presence of multiple official partners and social media channels indicates a well-established ecosystem. Growth opportunities may include expanding digital services and enhancing user engagement through personalized content and mobile app development.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and GDPR-compliant cookie consent mechanisms in place. The use of Facebook Pixel and Google Analytics indicates moderate user tracking, balanced with privacy compliance. However, the absence of key security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces defense-in-depth. The use of an outdated jQuery version poses potential vulnerability risks. No incident response or vulnerability disclosure policies are publicly available, which limits transparency and preparedness. Overall, the security posture is adequate for the business type but could benefit from enhancements in security controls and transparency.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, and X-Frame-Options to improve protection against common web attacks.
  2. Upgrade jQuery and other JavaScript libraries to the latest stable versions to mitigate known vulnerabilities.
  3. Publish an incident response policy and vulnerability disclosure program to enhance transparency and trust.
  4. Ensure WHOIS information is complete and publicly available to improve domain legitimacy and reduce suspicion.
  5. Regularly audit and update privacy and cookie policies to maintain compliance with evolving regulations.

Contact details published on the site

Addresses
Legal name
Černá louka s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Černá louka s.r.o.
Description
Ostravský informační servis - oficiální průvodce Ostravou. Přehled akcí, zajímavostí o Ostravě, přehled ubytování a další.
Key services
Event listings, Tourist information, E-shop for souvenirs, Accommodation overview
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.11.3, Google Tag Manager, Facebook Pixel, jQuery UI Datepicker, Fancybox
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel
Marketing tools
Facebook Pixel
Transparency
basic

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 event listings.
  2. No WHOIS data available, which is unusual for an official city guide domain.
  3. Cookie consent and privacy policies are implemented and GDPR compliant.
  4. Multiple official partnerships and social media presence enhance trust.
  5. No security headers detected in provided data; recommend adding.
  6. Uses older jQuery version which may have vulnerabilities.
  7. No explicit security or incident response policies found.
  8. No vulnerability disclosure or security.txt found.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built using a combination of legacy and modern web technologies, including jQuery 1.11.3, Google Tag Manager, Facebook Pixel, and jQuery UI Datepicker. The site is mobile responsive with good SEO practices such as meta tags and Open Graph data. Performance is moderate, with room for improvement in loading speed and modernizing the tech stack. Accessibility features are basic but present. The absence of a detected CMS suggests a custom or proprietary platform. Hosting provider details are not available from the provided data. Technical risks include outdated libraries and missing security headers, which should be addressed to reduce potential attack vectors.
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. 67/100Medium30 findingsView report
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