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Security report for 365jablonec.cz

Other · Czech Republic

High risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

48/100

Risk levelHigh

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

The website 365jablonec.cz serves as a local event listing platform for Jablonec nad Nisou, Czech Republic, providing up-to-date information on cultural, sports, educational, and leisure events. It targets a general audience interested in local happenings and offers features such as event search and organizer information. The site uses modern web technologies including React and Next.js, indicating a contemporary technical infrastructure with good mobile optimization and SEO practices. Security posture is adequate with HTTPS enabled, but lacks advanced security headers and formal privacy or cookie policies, which are areas for improvement. The absence of WHOIS data raises concerns about domain legitimacy and trustworthiness, impacting the overall risk profile. Strategic recommendations include enhancing security headers, publishing privacy and cookie policies, and providing clear contact and incident response information to improve compliance and trust.

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

8 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 365jablonec.cz

This scan found 26 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

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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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
35
DNS health
80
Network security
40
GDPR outside view
40
Average
48

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

365 Jablonec operates as a niche event information provider focused on the Jablonec nad Nisou region. Its business model revolves around aggregating and promoting local events, likely generating value through community engagement and possibly partnerships with local organizers. The platform's competitive advantage lies in its localized focus and comprehensive event categorization. The use of Google Analytics and Tag Manager suggests an interest in user behavior analytics to optimize offerings. However, the lack of explicit business contact details and WHOIS transparency may limit trust from partners and users. Growth opportunities include expanding event coverage, integrating ticketing or booking services, and enhancing user engagement features.

Security posture

The website demonstrates a basic to moderate security maturity level. HTTPS is properly implemented, ensuring encrypted communications. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces protection against common web attacks like clickjacking and MIME sniffing. No evidence of exposed sensitive data or vulnerable libraries was found in the HTML content. The lack of privacy and cookie policies indicates potential compliance gaps with GDPR and other data protection regulations. Incident response and security policy information are not present, suggesting limited preparedness for security incidents. Overall, while no critical vulnerabilities are evident, the site would benefit from enhanced security controls and compliance documentation.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen web security.
  2. Publish clear and accessible privacy and cookie policies with consent mechanisms to comply with GDPR and enhance user trust.
  3. Provide explicit contact information including emails and phone numbers for general inquiries and security incident reporting.
  4. Obtain and maintain transparent WHOIS registration data to improve domain legitimacy and trustworthiness.
  5. Regularly audit and update third-party scripts and tracking tools to minimize security risks and ensure privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Current programme of events in Jablonec nad Nisou. Cultural, social, leisure or sports events in Jablonec up to date and clearly.
Key services
Event listings, Event details, Search functionality for events, Information for event organizers
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Google Analytics
Frameworks
Next.js
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
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. Content is focused on event listings in Jablonec nad Nisou, Czech Republic.
  3. No contact emails, phone numbers, or social media links explicitly found in the provided HTML snippet.
  4. No privacy, cookie, or terms of service policies detected in the content.
  5. Uses modern web technologies including Next.js and React.
  6. Google Analytics and Google Tag Manager are used for tracking.
  7. No explicit security headers detected in the HTML content.
  8. WHOIS data is missing or unavailable, which is a risk factor for domain legitimacy.
  9. Website content is safe and suitable for general audiences.
Technical notes

Notes

The website is built using Next.js, a React-based framework, which supports server-side rendering and good SEO performance. The presence of Google Tag Manager and Google Analytics indicates integration of marketing and analytics tools. The site is mobile optimized with responsive images and layout. Performance appears moderate with preloading of fonts and stylesheets. No CMS is explicitly detected, suggesting a custom or static site generation approach. Hosting provider details are not discernible from the HTML content. The site lacks visible security headers, which is a technical gap. Overall, the technical infrastructure is modern but could be improved with enhanced security configurations and more transparent hosting information.
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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