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Security report for seduo.sk

Alma Career Czechia s.r.o. · Education · Slovakia

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

Seduo.sk is a leading Czech-Slovak online educational platform operated by Alma Career Czechia s.r.o., offering a wide range of professional and personal development courses primarily targeting businesses and individual learners in Slovakia and Czechia. The platform provides video courses, webinars, podcasts, and academies, supported by a mobile app for flexible learning. It holds a strong market position as the largest online education provider in the region with a comprehensive content library and top-tier instructors. Technically, the website is built on modern frameworks such as Next.js and React, leveraging HLS streaming for video content and integrating marketing and analytics tools like Google Tag Manager and Facebook Pixel. Security posture is robust with HTTPS enforcement and multiple security headers, although no dedicated security policy or incident response information is published. Privacy compliance is well addressed with clear privacy and cookie policies aligned with GDPR requirements. Overall, Seduo.sk demonstrates a mature digital presence with excellent content quality, user experience, and trust indicators, making it a reliable platform for corporate and individual learning needs.

Scanned

This is an earlier scan of seduo.sk. View the latest report

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 seduo.sk

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

€25per month

  • 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
77
Security headers
20
Email security
60
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

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Seduo.sk operates within the education sector, focusing on online corporate training and personal development. Its business model is subscription-based, offering unlimited access to a vast content library for companies and individuals. The platform benefits from being part of the Alma Career group, which includes several job portals and salary comparison sites, enhancing its ecosystem and market reach. The company targets medium to large enterprises and individual professionals seeking flexible learning solutions. Strategic partnerships and a strong brand presence in the Czech and Slovak markets provide competitive advantages. The availability of a free trial and localized support further strengthen customer acquisition and retention. The platform's content diversity and quality, combined with easy administration tools for companies, position it well for continued growth in the regional e-learning market.

Security posture

The website employs strong security measures including HTTPS with excellent SSL configuration and a comprehensive set of security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options. There is no evidence of exposed sensitive data or vulnerable libraries in the analyzed content. Forms appear to be securely implemented with no visible security flaws. However, the absence of a published security policy or incident response contact information represents a gap in transparency and readiness communication. No vulnerability disclosure or security.txt files were found. Overall, the security posture is solid but could be improved by adding explicit security governance documentation and incident response channels.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact information, such as a security@ or abuse@ email address.
  3. Implement and publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  4. Enhance transparency around data retention policies related to analytics and user data.
  5. Continue monitoring and updating third-party libraries and scripts to mitigate emerging vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Alma Career Czechia s.r.o.
Description
Najväčšia česko-slovenská online vzdelávacia platforma. Najviac tém pre profesijný a osobný rozvoj na jednom mieste. TOP lektori. Vyskúšajte ho zadarmo.
Key services
Online video courses, Webinars, Podcasts, Corporate training administration, Mobile learning app
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, HLS video streaming, Google Tag Manager, Intercom, Facebook Pixel
Frameworks
Next.js
Platforms
Web, Mobile (Android and iOS apps)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with proper input handling

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel, Intercom
Marketing tools
Intercom, Facebook Pixel
Transparency
good

Site quality

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

Key observations

  1. Website is a professional online educational platform targeting Czech and Slovak markets.
  2. Content is rich, well-structured, and professionally presented.
  3. Strong presence of trust signals including customer testimonials and partner logos.
  4. Use of modern web technologies and good security practices.
  5. Clear contact information and support channels available.
  6. No signs of malicious or suspicious activity.
  7. Privacy and cookie policies are present and GDPR compliant.
  8. No dedicated security or incident response pages found.
Technical notes

Notes

Seduo.sk is built on a modern technology stack featuring React and Next.js, enabling server-side rendering and optimized performance. The use of HLS streaming supports adaptive video delivery for a smooth user experience. Integration with marketing and analytics tools like Google Tag Manager, Facebook Pixel, and Intercom indicates a mature digital marketing approach. The website is mobile-optimized with a responsive design and dedicated mobile apps for Android and iOS, supporting offline learning. Performance is fast with preloading and prefetching of critical assets. Accessibility features are present but could be further enhanced. No CMS was explicitly detected, suggesting a custom or headless CMS solution. Hosting details are not explicitly available but likely leverage cloud infrastructure given the performance and global content delivery observed. Overall, the technical implementation supports a scalable and user-friendly educational platform.
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. 60/100Medium33 findingsView report
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