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Security report for estav.tv

Topinfo s.r.o. · Media · Czech Republic

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

51/100

Risk levelMedium

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

Estav.tv is a Czech online television platform specializing in architecture, construction, energy efficiency, and interior design. Operated by Topinfo s.r.o., the site offers a rich library of video content, podcasts, and audio articles targeting professionals and enthusiasts in the building and architectural sectors. The platform holds a niche market position with a focus on educational and inspirational media content. Technically, the website employs modern web technologies including Google Analytics, Google Tag Manager, Google Adsense, and streaming technologies like HLS.js and Plyr. The site is mobile-optimized and uses HTTPS, ensuring secure content delivery. However, it lacks explicit privacy and terms of service pages, which are important for compliance and user trust. Security headers are not detected, and DNSSEC is not enabled, indicating room for security improvements. Overall, the domain registration is consistent and trustworthy, with no WAF or blocking detected, allowing full content access.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

8 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

  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 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 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 estav.tv

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
75
Security headers
40
Email security
40
DNS health
60
Network security
40
GDPR outside view
50
Average
51

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

The business operates in the media sector with a focus on energy and construction industries. Its business model revolves around content creation and distribution, monetized via advertising (Google Adsense) and possibly partnerships. The target audience includes architects, builders, energy professionals, and homeowners interested in sustainable building practices. The company maintains partnerships with related industry sites such as TZB-info and Estav.cz, enhancing its ecosystem. The platform demonstrates growth potential through its award recognition and diversified content formats. However, the absence of direct contact information and formal policies may limit trust for some users.

Security posture

The website demonstrates a moderate security posture with HTTPS enforced and no visible sensitive data exposure. The use of third-party scripts for analytics and advertising is standard but requires ongoing monitoring for vulnerabilities. The lack of security headers and DNSSEC reduces the overall security robustness. No incident response or security policy information is publicly available, which is a gap in security governance. Cookie consent is implemented, indicating some privacy awareness. Recommendations include enabling DNSSEC, adding security headers, publishing privacy and security policies, and establishing clear incident response contacts.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service to enhance compliance and user trust.
  2. Implement security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  4. Provide clear contact information for security incidents and general inquiries.
  5. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Topinfo s.r.o.
Description
On-line television for architecture, construction, and living. Provides original shows, visits to interesting buildings, inspiration from architecture and design, and interviews from a modern studio. Content focuses on architecture, building, energy savings, and interior design.
Key services
Online video shows, Podcasts, Audio articles, Educational content on architecture and energy
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Google Analytics, Google Adsense, Cookie-script.com, Tiny-slider, HLS.js, Plyr
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of secure video streaming (HLS)
  • Cookie consent mechanism implemented

Analytics and tracking

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

Advertising

Ad networks
Google Adsense
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 online TV platform focused on architecture and construction.
  2. Content includes videos, podcasts, and audio articles with professional production.
  3. No explicit privacy policy or terms of service found on the homepage.
  4. Cookie consent is implemented via cookie-script.com.
  5. Use of Google Adsense and Google Analytics for advertising and tracking.
  6. No direct contact emails or phone numbers found on the homepage.
  7. Social media presence includes Facebook and YouTube links.
  8. Domain WHOIS data is consistent and legitimate.
  9. No WAF or blocking detected; full content accessible.
  10. Website uses HTTPS and modern video streaming technologies.
Technical notes

Notes

The website uses a modern tech stack including Google Tag Manager, Google Analytics, Google Adsense, and streaming libraries like HLS.js and Plyr. It is built on Topinfo CMS, indicating a custom or specialized content management system. The site is mobile responsive with good SEO practices including meta tags and Open Graph data. Performance is moderate, with room for optimization. Accessibility is basic but could be improved. Hosting details are not explicit but domain registrar is Ascio Technologies. The site uses cookie consent scripts for GDPR compliance. Overall, the technical infrastructure supports a professional media platform but could benefit from enhanced security configurations and performance tuning.
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. 51/100Medium32 findingsView report
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