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Security report for tiscali.cz

Tiscali.cz · Media · Czech Republic

Medium risk. 6 critical or high findings in Email security, Security headers and 2 other checks.

Security score

63/100

Risk levelMedium

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

Tiscali.cz is a prominent Czech online media portal offering a wide range of content including news, finance, sports, magazines, travel, and gaming. It targets the Czech-speaking general public and is recognized as one of the long-standing information portals in the region. The website features a professional design with consistent branding and clear navigation, supporting a good user experience. Technically, the site employs modern web technologies and integrates multiple analytics and advertising platforms, indicating a mature digital infrastructure. Security-wise, the site uses HTTPS and sandboxed iframes for email previews, but lacks explicit security headers and privacy policies in the visible content, which are areas for improvement. Overall, the site is safe, trustworthy, and well-positioned in the Czech media market, though the absence of WHOIS data limits domain trust verification.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 100 · Medium
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

6 findings rated critical or high. Fix these first.

  1. 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

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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 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';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

Need hands-on remediation? Email guard@offseq.com

Keep watching tiscali.cz

This scan found 25 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
62
Security headers
30
Email security
40
DNS health
75
Network security
100
GDPR outside view
73
Average
63

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

Tiscali.cz operates as a large-scale media entity in the Czech Republic, delivering diverse content to a broad audience. Its business model revolves around advertising revenue supported by integrated ad networks and analytics tools. The portal maintains partnerships with several related sites in gaming, esports, and lifestyle sectors, enhancing its content ecosystem. The lack of explicit privacy and cookie policies may pose compliance risks, but the site's extensive content and social media presence contribute to its market strength. Growth opportunities exist in enhancing privacy compliance and expanding direct user engagement channels.

Security posture

The website demonstrates a moderate security posture with HTTPS enforcement and sandboxed iframe usage for embedded email content. However, the absence of clearly visible security headers such as X-Frame-Options and Content-Security-Policy reduces its defense-in-depth. The use of multiple third-party scripts and ad networks introduces potential risk vectors that require regular auditing. No critical vulnerabilities or exposed sensitive data were detected in the analyzed content. The site would benefit from implementing comprehensive security headers and publishing clear security and incident response policies to strengthen trust and compliance.

Recommendations

  1. Publish and prominently link comprehensive privacy and cookie policies to enhance GDPR compliance and user trust.
  2. Implement and verify security headers including Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.
  3. Conduct regular security audits of third-party scripts and advertising networks to mitigate supply chain risks.
  4. Provide clear contact information including security incident response contacts and data protection officer details.
  5. Consider publishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tiscali.cz
Description
Zpravodajství z domova a ze světa, počasí, sport a celebrity. Na Tiscali.cz najdete i finance, cestování a hry. Známý a používaný je i e-mail zdarma.
Key services
News, Finance, Sports, Magazine articles, Games, Free email service
Content quality
good
Branding
consistent

Technology

Stack
Google Analytics, Google Tag Manager, Google Adsense, Gemius (analytics), Microsoft Clarity, VideoJS, YouTube iframe API, Bootstrap (implied by navbar classes), Adscale, Pubmatic, Mookie1, Performax OpenWrap
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • Use of HTTPS
  • Sandboxed iframe for email preview
  • Async loading of scripts

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Microsoft Clarity, Gemius
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Adsense, Pubmatic, Adscale, Performax OpenWrap
Tracking pixels
Microsoft Clarity, Gemius
Marketing tools
Microsoft Clarity
Transparency
basic

Site quality

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

Key observations

  1. Website is a well-established Czech news and media portal with diverse content including news, finance, sports, magazine, and games.
  2. No WHOIS data available, limiting domain registration trust analysis.
  3. Website uses HTTPS and modern web technologies with multiple third-party analytics and advertising services.
  4. No privacy, cookie, or terms of service pages explicitly found in the provided content.
  5. No explicit contact emails or phone numbers found in the visible content.
  6. Social media presence includes Facebook and RSS feeds.
  7. No adult or explicit content detected; content is safe for general audiences.
  8. No WAF or blocking mechanisms detected; content is fully accessible.
Technical notes

Notes

The website uses a modern technology stack including Google Analytics, Google Tag Manager, Microsoft Clarity, VideoJS, and various advertising platforms. It leverages Bootstrap for responsive design and includes multiple subdomains for specialized content areas. Performance is moderate with asynchronous script loading and responsive images. Accessibility features are basic but present. SEO is supported by proper meta tags and Open Graph data. Hosting provider details are not explicit. The site could improve by enhancing accessibility compliance and optimizing security headers.
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. 63/100Medium33 findingsView report
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