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Security report for terezakostkova.com

Tereza Kostková · Media · Czech Republic

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 3 other checks.

Security score

56/100

Risk levelMedium

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

The website www.terezakostkova.com serves as the official online presence of Czech actress Tereza Kostková. It provides biographical information, a detailed calendar of her theater and media appearances, collaborations with brands, and contact details for professional inquiries. The site targets fans, media professionals, and event organizers interested in her work. Technically, the site is built on Joomla CMS with Bootstrap and jQuery, featuring Google Fonts and Google Analytics for tracking. The design is professional and mobile-optimized, offering a good user experience with clear navigation. However, the site lacks privacy and cookie policies, which is a compliance gap under GDPR regulations. Security headers are not evident, and the WHOIS data for the domain is missing, raising concerns about domain registration legitimacy. Overall, the site is functional and professional but requires improvements in privacy compliance and security practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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. 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 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';…

  2. GDPR outside view

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

    • 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

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, YouTube, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

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

Keep watching terezakostkova.com

This scan found 18 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
62
Security headers
70
Email security
65
DNS health
85
Network security
20
GDPR outside view
35
Average
56

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 terezakostkova.com, from OffSeq Breach.

No leaked records found

Breach holds no records for terezakostkova.com 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

Tereza Kostková operates as a personal brand within the media industry, focusing on theater and television appearances. The business model revolves around promoting her acting career and managing public engagements through an event calendar and collaborations with fashion and beauty brands. The website reflects a small-scale operation with a strong local Czech market focus. Partnerships with designers and brands like Garnier indicate strategic collaborations enhancing her market presence. The absence of detailed company registration or VAT information suggests a sole proprietorship or individual operation. The site’s content and structure support fan engagement and professional contact, positioning her as a recognized figure in Czech entertainment.

Security posture

The website employs HTTPS, ensuring encrypted communication, but lacks visible security headers such as Content-Security-Policy or X-Frame-Options, which are important for mitigating common web attacks. No forms are present, reducing risk from input-based vulnerabilities, but the use of older JavaScript libraries like jQuery 2.2.4 may expose the site to known vulnerabilities if not properly patched. The absence of privacy and cookie policies indicates non-compliance with GDPR, potentially exposing the site to regulatory risks. WHOIS data absence is a critical concern for domain legitimacy and trust. Incident response and security policy information are not provided, suggesting limited formal security governance. Overall, the security posture is moderate but requires enhancements to meet best practices and compliance standards.

Recommendations

  1. Implement comprehensive privacy and cookie policies with clear user consent mechanisms to ensure GDPR compliance.
  2. Add essential security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against web vulnerabilities.
  3. Update JavaScript libraries to the latest secure versions to mitigate known security risks.
  4. Verify and correct domain WHOIS registration to establish domain legitimacy and trustworthiness.
  5. Consider publishing a security policy and incident response contact information to improve transparency and readiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tereza Kostková
Description
Official website of actress Tereza Kostková providing information about her biography, calendar of events, collaborations, and contact details.
Key services
Information about Tereza Kostková, Event calendar for theater and other appearances, Collaborations with brands and designers, Contact for media and event representation
Content quality
good
Branding
consistent

Technology

Stack
jQuery 2.2.4, Bootstrap 3, Google Fonts, Google Analytics
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • HTTPS usage inferred from base href (https://)
  • 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
high

Key observations

  1. Website is an official personal site of actress Tereza Kostková
  2. Content is in Czech language targeting Czech audience
  3. No privacy or cookie policies found, indicating compliance gaps
  4. WHOIS data unavailable, raising domain legitimacy questions
  5. Site uses older JavaScript libraries but functional
  6. Google Analytics used for visitor tracking
  7. Contact information clearly provided with phone and email
  8. No security headers detected in provided data
  9. No forms detected for data collection
  10. No structured data (JSON-LD or Open Graph) found in HTML
Technical notes

Notes

The website is built on Joomla CMS with Bootstrap 3 and jQuery 2.2.4, indicating a somewhat dated but stable technology stack. Google Fonts and Google Analytics are integrated for typography and analytics respectively. The site is mobile-optimized with responsive design elements and uses asynchronous loading for analytics scripts, improving performance. However, the lack of modern security headers and outdated JavaScript libraries suggest technical debt and potential security risks. SEO is basic with meta keywords and description present but no structured data like JSON-LD or Open Graph tags detected. The site performance is moderate, with no evident critical errors or broken elements. Opportunities exist to modernize the tech stack, improve SEO with structured data, and enhance security configurations.
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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