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Security report for sensio.cz

Sensio.cz s.r.o. · Technology · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

49/100

Risk levelHigh

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

Sensio.cz s.r.o. is a Czech technology company specializing in custom information systems for basic art schools and business sectors, alongside innovative 3D printing services including the unique MyCello electric cello. The company has a decade-long market presence and is recognized for its innovative approach and customer-centric software solutions. Their business model combines SaaS offerings, product sales, and professional services such as technical support and training. Technically, the website employs modern JavaScript libraries and frameworks like jQuery and Bootstrap, integrates multiple analytics and tracking tools, and is mobile optimized with good SEO practices. Security posture is moderate with HTTPS usage but lacks explicit security headers and cookie consent mechanisms. WHOIS data is unavailable, which impacts trust but the website content and business indicators suggest legitimacy. Overall, the site is professional, content-rich, and well-structured, targeting educational institutions and business clients primarily in the Czech Republic.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

9 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 sensio.cz

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

Email alerts on material changes and an exportable JSON history of every change.

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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
95
Security headers
20
Email security
70
DNS health
80
Network security
20
GDPR outside view
10
Average
49

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 company holds a niche position in the education and technology sectors, focusing on cloud-based information systems tailored for art schools and business clients. Their competitive advantage lies in combining software solutions with hardware innovation (3D printed cello) and comprehensive customer care including training and consulting. The presence of international crowdfunding campaigns and awards indicates growth and innovation capacity. Revenue streams likely include SaaS subscriptions, product sales, and service contracts. The company maintains a consistent brand and leverages partnerships with crowdfunding platforms and educational initiatives. Strategic observations include the need to enhance privacy compliance and security transparency to strengthen market trust.

Security posture

Sensio.cz s.r.o. demonstrates a moderate security maturity level. The website uses HTTPS and avoids exposing sensitive data in the HTML. However, the absence of security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces protection against common web attacks. No explicit security or incident response policies are published, and no dedicated security contact channels are visible. The use of multiple third-party tracking scripts increases the attack surface and privacy risks. Compliance with GDPR is partial, with a privacy policy present but no cookie consent mechanism. The company should prioritize implementing security headers, cookie consent, and publishing security policies to improve resilience and compliance.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection.
  2. Add a cookie consent banner/mechanism to comply with privacy regulations and improve user trust.
  3. Publish a clear security policy and incident response contact information on the website.
  4. Regularly audit and update third-party scripts to mitigate vulnerabilities and privacy risks.
  5. Verify and publish domain WHOIS information to enhance legitimacy and trustworthiness.

Contact details published on the site

Addresses
Legal name
Sensio.cz s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sensio.cz s.r.o.
Description
Sensio.cz s.r.o. creates custom information systems primarily for basic art schools and business sectors. They also offer 3D printing services and produce a unique 3D printed electric cello called MyCello. The company emphasizes software solutions that save time and improve work efficiency.
Key services
Cloud information systems for art schools (IZUŠ, EOS), 3D printing services, MyCello electric cello product, Technical support, Training and seminars, Consultations and analyses
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.3.1, Bootstrap, Slick Carousel, Google Analytics, Google Tag Manager, LinkedIn Insight Tag, Smartlook session recording
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS usage implied by URL
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics, LinkedIn Insight Tag, Smartlook
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
LinkedIn Insight Tag, Smartlook
Marketing tools
LinkedIn Insight Tag, Smartlook
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and navigation
  2. No forms detected on the homepage or main content
  3. Contact info clearly presented in footer
  4. No explicit cookie consent banner or mechanism found
  5. Privacy policy is hosted externally on Google Docs
  6. Multiple external tracking and analytics scripts used
  7. No visible security headers in HTML source
  8. WHOIS data unavailable, which is unusual and reduces trust
  9. Business appears focused on Czech market with Czech language content
Technical notes

Notes

The website is built on a solid technical foundation using Bootstrap for responsive design and jQuery for interactivity. It integrates slick carousel for UI elements and multiple analytics tools including Google Analytics, LinkedIn Insight, and Smartlook for user behavior tracking. The site is mobile optimized and SEO friendly with proper meta tags and Open Graph data. However, the absence of a CMS or hosting provider information limits insights into backend infrastructure. Performance is moderate with asynchronous loading of scripts. Technical risks include reliance on multiple third-party scripts without visible security controls and missing security headers. Opportunities exist to modernize the tech stack by reducing dependencies and enhancing 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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