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Security report for xsd.cz

Centrum.cz · Media · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

60/100

Risk levelMedium

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

Centrum.cz is a well-established Czech internet portal providing a variety of online services including email, news, and weather updates. The website targets Czech-speaking users seeking reliable and diverse content. Technically, the site is built on modern frameworks such as Next.js and React, leveraging multiple third-party analytics and advertising platforms to monetize and analyze user engagement. Security posture is strong with HTTPS enforced and appropriate security headers, although privacy compliance could be improved by publishing clear privacy and cookie policies. The absence of WHOIS data is likely due to privacy protection, which is common for media portals. Overall, the site presents a professional and trustworthy online presence with room for enhancement in privacy transparency and contact accessibility.

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

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 xsd.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
65
Security headers
15
Email security
75
DNS health
80
Network security
100
GDPR outside view
25
Average
60

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 xsd.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for xsd.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

Centrum.cz operates in the media sector as a large-scale online portal serving the Czech market. Its business model revolves around content delivery and advertising revenue, supported by extensive analytics and ad networks. The portal offers key services such as email, news, and weather, catering to a broad audience. The site’s market position is strong within the Czech Republic, leveraging brand recognition and consistent content updates. Partnerships with major ad networks and analytics providers indicate a mature digital marketing ecosystem. However, the lack of visible contact and compliance information may impact user trust and regulatory adherence.

Security posture

The website demonstrates a solid security foundation with HTTPS, modern security headers, and no visible sensitive data exposure. The use of multiple third-party scripts introduces potential risk vectors, necessitating regular security audits. The absence of a published security policy or incident response contact limits transparency. No critical vulnerabilities were detected in the analyzed content. Enhancing privacy policy visibility and implementing a vulnerability disclosure program would strengthen the security posture and compliance with GDPR and related regulations.

Recommendations

  1. Publish comprehensive and easily accessible privacy and cookie policies to improve transparency and GDPR compliance.
  2. Provide clear contact information including security and incident response channels to enhance trust and facilitate communication.
  3. Regularly audit and update third-party scripts to mitigate potential security vulnerabilities.
  4. Implement accessibility improvements to broaden user inclusivity and meet standards.
  5. Consider publishing a security.txt file and a formal vulnerability disclosure policy to encourage responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Centrum.cz
Description
Centrum.cz je český internetový portál nabízející e-mail, aktuální zpravodajství, počasí a další zajímavé služby.
Key services
Email service, News, Weather, Online content
Content quality
good
Branding
consistent

Technology

Stack
React (Next.js), Google Tag Manager, Google Analytics, Facebook SDK, YouTube Widget API, Gemius (analytics), Prebid.js (header bidding), Performax scripts, CPEX advertising, Snowly ALS
Frameworks
Next.js, React
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of CSP
  • No exposed sensitive data in HTML
  • Use of iframe for TCF API (consent management)

Analytics and tracking

Services
Google Analytics, Gemius
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
CPEX, Performax, R2B2
Tracking pixels
Gemius, Facebook Pixel
Marketing tools
Google Custom Search
Transparency
basic

Site quality

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

Key observations

  1. Website is a Czech media portal offering email, news, and weather services.
  2. Content is in Czech language and professionally presented.
  3. No WHOIS data available, likely due to privacy or registry policy.
  4. Uses modern web technologies including Next.js and React.
  5. Includes multiple third-party analytics and advertising scripts.
  6. No visible privacy or cookie policy pages found in the HTML content.
  7. No contact emails or phone numbers explicitly found in the content.
  8. No security.txt or vulnerability disclosure information detected.
  9. No signs of adult or explicit content.
  10. No WAF or blocking mechanisms detected; site content fully accessible.
Technical notes

Notes

The website is built using Next.js and React, indicating a modern and scalable front-end architecture. It employs a CDN (hpx-cdn.xsd.cz) for static assets, improving load times and availability. Multiple analytics and advertising scripts are integrated, including Google Tag Manager, Gemius, and Performax, reflecting a data-driven approach to user engagement and monetization. The site is mobile-optimized with responsive design and uses standard SEO meta tags. Performance is moderate, with potential improvements in accessibility and privacy compliance. No CMS was explicitly detected, suggesting a custom or headless CMS solution. Hosting appears stable and regionally appropriate for the Czech market.
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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