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Security report for estav.tv

Topinfo s.r.o. · Energy · 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 an online television platform specializing in architecture, construction, housing, and energy topics, operated by Topinfo s.r.o. The website offers a rich variety of video content, podcasts, and audio articles targeting professionals and enthusiasts interested in these sectors. The platform holds a niche market position in the Czech Republic, providing original programming and educational content. Technically, the site employs modern web technologies including Google Fonts, Google Analytics, Google Tag Manager, and video streaming libraries such as HLS.js and Plyr. Hosting is provided by Active24, and the site uses a proprietary CMS (Topinfo CMS). Security posture is adequate with HTTPS enforced, but lacks advanced security headers and DNSSEC. Privacy compliance is basic, with a cookie consent mechanism present but no visible privacy or terms of service pages. No direct contact information is published on the homepage. Overall, the website is professional, content-rich, and trustworthy, but could improve in security and compliance transparency.

Scanned

This is an earlier scan of estav.tv. View the latest report

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.

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
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 energy and construction media sector, targeting a specialized audience interested in architecture, energy efficiency, and building technologies. Its business model revolves around content creation and distribution, including video streaming and podcasts, likely monetized through advertising (Google Adsense) and partnerships. The company is relatively young (founded 2021) but shows active content updates and industry engagement, including awards. Partnerships with related industry portals (tzb-info.cz, estav.cz) enhance its ecosystem. The platform's growth potential lies in expanding content offerings and improving user engagement through enhanced technical and compliance features.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enabled and no visible exposure of sensitive data. However, it lacks DNSSEC, and security headers such as Content-Security-Policy and X-Frame-Options are not evident, which could expose it to certain web-based attacks. No explicit incident response or security policies are published, indicating a gap in transparency and preparedness. The use of multiple third-party scripts (Google services, cookie consent) requires ongoing monitoring for vulnerabilities. Overall, the security posture is functional but could benefit from enhancements to align with best practices and compliance requirements.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  2. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.
  3. Publish clear privacy policy and terms of service pages to improve compliance and user trust.
  4. Provide explicit contact information including security or abuse contacts to support incident response.
  5. Regularly audit third-party scripts and dependencies to mitigate risks from external libraries.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Topinfo s.r.o.
Description
Televize pro každého, kdo staví, opravuje, bydlí, či bydlení pořizuje. On-line pořady pro všechny se zájmem o architekturu, dům, úspory energií nebo interiérový design. Originální pořady, návštěvy na zajímavých stavbách, inspirace z architektury a designu nebo rozhovory z nového moderního studia.
Key services
online video content, podcasts, audio articles, educational and informational programming
Content quality
good
Branding
consistent

Technology

Stack
Google Fonts, Google Adsense, Google Tag Manager, Google Analytics, HLS.js, Plyr, Tiny Slider, Cookie Script
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of crossorigin attribute on video elements

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 specialized online TV and media platform focused on architecture, construction, energy, and housing topics.
  2. Content is rich with video, podcasts, and audio articles, updated regularly with recent dates in 2025.
  3. No explicit privacy policy or terms of service found on the homepage or footer.
  4. Cookie consent mechanism is implemented via a third-party script.
  5. No direct contact emails or phone numbers found on the homepage HTML.
  6. Uses modern web technologies and Google services for analytics and advertising.
  7. No WAF or blocking mechanisms detected; content fully accessible.
  8. WHOIS data is consistent and domain is legitimate with a good registration history.
  9. Security headers are minimal; DNSSEC is not enabled.
  10. No explicit security or incident response policies published on the site.
Technical notes

Notes

The website uses a modern technology stack with Google Fonts for typography, Google Analytics and Tag Manager for tracking, and HLS.js and Plyr for video streaming. The CMS is proprietary (Topinfo CMS), and hosting is via Active24. Performance is moderate with responsive design and mobile optimization evident. SEO is supported by proper meta tags and Open Graph data. Accessibility is basic but could be improved. The site integrates advertising via Google Adsense and cookie consent via a third-party script. Overall, the technical infrastructure is solid but could be enhanced with additional security and accessibility features.
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. 51/100Medium33 findingsView report
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