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Security report for vodafone.cz

Vodafone · Telecommunications · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view and Security headers.

Security score

68/100

Risk levelMedium

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

Vodafone.cz is the official website of Vodafone's Czech Republic operations, offering mobile phones, tariffs, internet, and television services. The site targets general consumers and businesses seeking telecommunications solutions, emphasizing its fast 5G network and unlimited mobile tariffs. The website reflects a major telecommunications operator's digital presence with consistent branding and professional content. Technically, the site employs modern web technologies including JavaScript frameworks, Adobe Omniture, and Tealium for analytics and marketing. It is mobile-optimized and demonstrates good SEO and accessibility practices, though some accessibility features could be enhanced. Security-wise, the site uses HTTPS with strong security headers and a cookie consent mechanism, but lacks publicly visible privacy and terms of service pages, which are critical for compliance and user trust. The absence of WHOIS data limits domain trust analysis, but the website's content and branding strongly support legitimacy. Overall, Vodafone.cz presents a mature digital infrastructure with room for improvement in privacy transparency and incident response readiness.

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. 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 vodafone.cz

This scan found 20 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
100
Security headers
15
Email security
85
DNS health
85
Network security
100
GDPR outside view
25
Average
68

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

Vodafone.cz operates in the telecommunications sector, serving a large market in the Czech Republic. Its business model revolves around providing mobile and fixed-line communication services, including 5G connectivity and digital TV. The company leverages its brand strength and network capabilities to maintain a competitive position. The website's content and metadata indicate a focus on consumer and business segments seeking reliable and fast connectivity. The presence of advanced analytics and marketing tools suggests a data-driven approach to customer engagement. However, the lack of explicit legal and contact information on the site may impact customer confidence and regulatory compliance. Strategic partnerships and subsidiary information were not evident in the provided data.

Security posture

The website demonstrates a solid security posture with HTTPS enforcement and multiple security headers such as Content Security Policy and Strict-Transport-Security. The use of cookie consent scripts aligns with GDPR requirements, though the absence of a detailed privacy policy and incident response contacts is a notable gap. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The integration of third-party analytics and marketing scripts necessitates ongoing monitoring to mitigate supply chain risks. Overall, the security maturity is good but could be enhanced by publishing comprehensive security policies and establishing clear channels for vulnerability reporting.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service pages prominently linked on the website.
  2. Provide explicit contact information for security incidents, including dedicated security and abuse email addresses.
  3. Implement and publicize a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  4. Enhance accessibility features to meet recognized standards and improve user experience for all visitors.
  5. Regularly audit and update third-party scripts and libraries to minimize security risks and maintain compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Vodafone
Description
Kryjeme vám záda doma i venku ✅ Nejrychleší 5G síť ✅ Neomezené mobilní tarify ✅ Pevný internet s rychlostí až 1 Gb/s ✅ Vodafone TV.
Key services
Mobile telephony, Mobile tariffs, 5G network, Fixed internet up to 1 Gb/s, Vodafone TV
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Omniture (Adobe Analytics), Tealium (utag.js), JavaScript, CSS, HTML5
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Use of Content Security Policy
  • Cookie consent mechanism

Analytics and tracking

Services
Adobe Omniture, Tealium
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Tealium, Omniture
Marketing tools
Tealium, Adobe Analytics
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
  2. No WHOIS data available, possibly due to registry restrictions or privacy
  3. Strong Vodafone brand presence and professional design
  4. Use of modern analytics and consent mechanisms
  5. No explicit contact or legal policy pages found in provided content
  6. No signs of malware or phishing detected
Technical notes

Notes

Vodafone.cz uses a modern technology stack including jQuery, Adobe Omniture for analytics, and Tealium for tag management. The website is built with standard HTML5, CSS, and JavaScript, with inline font-face declarations for branding consistency. Performance is moderate, with asynchronous loading of analytics scripts to optimize page load times. Mobile optimization is good, supported by responsive design and viewport meta tags. SEO is well addressed through meta tags and Open Graph data. However, no CMS or hosting provider information was detected. The site could benefit from enhanced accessibility features and improved documentation of data retention and privacy practices.
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. 71/100Medium26 findingsView report
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