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Security report for tanvald.eu

as4u.cz, s.r.o. · Hospitality · Czech Republic

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

Security score

64/100

Risk levelMedium

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

The website www.tanvald.eu serves as a comprehensive local tourism and leisure portal for the town of Tanvald in the Czech Republic. It provides visitors and residents with information on local events, tourist attractions, services, and cultural activities. The site is managed using the Public4u CMS platform and integrates Mapy.cz for mapping services. The content is primarily in Czech with language options for English, German, and Polish, targeting tourists and local community members. The business behind the site appears to be a small entity, likely linked to local government or tourism organizations, with as4u.cz, s.r.o. involved in content management or technical support. Technically, the website uses standard web technologies including jQuery and jQuery UI, and it is moderately optimized for mobile devices. The site structure is clear and navigation is user-friendly, with a good level of content quality and relevance. However, there is room for improvement in accessibility and SEO optimization. Security-wise, the site uses HTTPS but lacks explicit security headers and advanced protections such as CSP or HSTS. Cookie consent mechanisms are implemented, indicating some level of privacy compliance, though no formal privacy or security policies are prominently provided. Overall, the security posture is moderate with no critical vulnerabilities detected in the visible content. The WHOIS data is privacy protected by EURid, which is common for domains in the .eu space, and no suspicious patterns were found. The site is safe for general audiences, with no adult or questionable content. Strategic recommendations include enhancing security headers, formalizing privacy and security policies, and improving accessibility and SEO to strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

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. 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 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 tanvald.eu

This scan found 22 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
85
Security headers
40
Email security
60
DNS health
75
Network security
100
GDPR outside view
25
Average
64

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 tanvald.eu, from OffSeq Breach.

No leaked records found

Breach holds no records for tanvald.eu 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

The portal positions itself as a key local information hub for tourism and community engagement in Tanvald and the surrounding Jizerské hory region. Its competitive advantage lies in localized, curated content including event calendars, travel tips, and multimedia galleries. The business model is informational and service-oriented, likely funded or supported by local government or tourism bodies. Revenue streams are not explicit but may include local advertising or partnerships. The target customers are tourists, families, and local residents seeking leisure and cultural activities. The partnership ecosystem includes regional tourism sites such as jizerske-hory.cz and tanvaldsko.info, enhancing regional collaboration. Growth indicators are stable with regular event updates and multilingual support. Operationally, the site relies on as4u.cz, s.r.o. for technical and content management services.

Security posture

The website demonstrates a basic to moderate security maturity level. HTTPS is enforced, and a cookie consent banner is present, indicating awareness of privacy regulations. However, the absence of key security headers (CSP, HSTS, X-Frame-Options) and lack of visible security or incident response policies suggest gaps in security hardening and governance. No vulnerability disclosure or security.txt files were found, limiting transparency for security researchers. The site does not expose sensitive data or use vulnerable libraries visibly, but the use of older jQuery versions could pose risks if not updated. Incident response readiness and data protection officer contact information are not provided, which may impact compliance with GDPR and NIS2 directives. Overall, the security posture is adequate for a small informational portal but requires improvements to meet higher compliance and security standards.

Recommendations

  1. Implement HTTP security headers including Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options to mitigate common web attacks.
  2. Publish clear and accessible privacy, security, and terms of service policies to enhance transparency and compliance.
  3. Regularly update all JavaScript libraries and CMS components to patch known vulnerabilities.
  4. Introduce a vulnerability disclosure policy and security.txt file to facilitate responsible reporting and improve security culture.
  5. Enhance accessibility features and SEO optimization to improve user experience and search engine visibility.

Contact details published on the site

Addresses
Legal name
as4u.cz, s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
as4u.cz, s.r.o.
Description
Tanvald - turistický a volnočasový portál providing information about the town of Tanvald, tourism, leisure activities, events, and local services.
Key services
Tourist information, Event calendar, Travel tips, Local services directory, Photo and video galleries
Content quality
good
Branding
consistent

Technology

Stack
jQuery, jQuery UI, Public4u CMS, Mapy.cz API
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • HTTPS enforced (implied by https URLs)
  • Cookie consent banner implemented

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a well-structured local tourism and community portal for Tanvald, Czech Republic.
  2. Content is in Czech with language switchers for English, German, and Polish.
  3. No WHOIS data available due to EURid privacy restrictions.
  4. Cookie consent banner is implemented with options to accept or reject cookies.
  5. No explicit privacy policy page found but accessibility statement is present.
  6. No terms of service or security policy pages detected.
  7. Contact information is clearly provided in footer with physical address, phone, and email.
  8. No security.txt or vulnerability disclosure policy found.
  9. No analytics or tracking scripts detected in the HTML content.
  10. No advertising or affiliate marketing detected.
Technical notes

Notes

The website is built on the Public4u CMS platform, utilizing jQuery and jQuery UI libraries for frontend interactivity. It integrates Mapy.cz APIs for map functionalities. The site uses standard HTML5 and CSS with separate stylesheets for screen and print media. JavaScript files are loaded both locally and from the domain itself, indicating self-hosted scripts. The site is moderately optimized for mobile devices with viewport meta tags and responsive design elements. Performance appears moderate with no explicit indicators of slow loading but could benefit from optimization. No advanced frameworks like React or Angular are detected. The technical stack is stable but somewhat dated, suggesting opportunities for modernization and improved security hardening.
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. 64/100Medium31 findingsView report
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