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Security report for controlling.cz

Controller Institut s.r.o. · Education · Czech Republic

High risk. 10 critical or high findings in GDPR outside view, SSL/TLS and 2 other checks.

Security score

32/100

Risk levelHigh

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

Controller Institut s.r.o. is a well-established Czech education provider specializing in finance and controlling training, offering seminars, certified cycles, online courses, corporate training, and mentoring. The company targets finance professionals and controllers seeking practical and certified education. The website reflects a mature business with 30 years of market presence and a strong focus on quality content and professional services. Technically, the site uses a custom CMS with popular JavaScript libraries and marketing tools but lacks modern security measures such as HTTPS, which is a critical vulnerability. The security posture is weak due to the absence of SSL/TLS and related security headers, exposing users to risks. Privacy compliance is partial, with no active cookie consent mechanism despite tracking scripts in use. Overall, the business credibility is high, supported by consistent WHOIS data and clear contact information. Strategic improvements in security and privacy compliance are recommended to enhance trust and protect users.

Scanned

NIS2 and GDPR posture

GDPR outside view
0/ 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

10 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

    • Critical

      No HTTPS encryption

      GDPR requires appropriate security measures for personal data

      What to do: Implement SSL/TLS certificate for HTTPS

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • Critical

      No HTTPS Encryption

      Website does not use HTTPS encryption, making all data transmission vulnerable to interception

      What to do: Implement SSL/TLS certificate and redirect all HTTP traffic to HTTPS

  3. 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"

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

Keep watching controlling.cz

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.

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
0
Security headers
35
Email security
50
DNS health
85
Network security
20
GDPR outside view
0
Average
32

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 strong market position in the Czech Republic's finance education sector, leveraging a comprehensive portfolio of training services including seminars, certified cycles, and online learning. Its business model is based on direct educational offerings and corporate training, supported by partnerships with payment processors like ComGate. The target audience includes finance professionals and controllers, with a focus on practical and certified knowledge. The company demonstrates growth and stability with 30 years in operation and a medium-sized organizational footprint. The presence of testimonials and certifications enhances its competitive advantage and trustworthiness.

Security posture

The website's security maturity is low due to the lack of HTTPS and modern TLS protocols, which is a critical issue that undermines user data protection and trust. While some security headers like Content-Security-Policy are present, key protections such as HSTS, OCSP stapling, and session resumption are missing. No incident response or vulnerability disclosure policies are found, indicating limited readiness for security incidents. The use of tracking and marketing scripts without a cookie consent mechanism raises privacy compliance concerns under GDPR. Immediate remediation of SSL/TLS and privacy controls is essential to improve the security posture.

Recommendations

  1. Install and maintain a valid SSL/TLS certificate to enable HTTPS across the entire site.
  2. Enable modern TLS protocols (TLS 1.2 or TLS 1.3) and security headers such as HSTS, X-Frame-Options, and Referrer-Policy.
  3. Implement a cookie consent mechanism compliant with GDPR to manage user tracking and privacy.
  4. Develop and publish a security policy and incident response plan, including a vulnerability disclosure process.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and improve transparency.

Contact details published on the site

Addresses
Legal name
Controller Institut s.r.o.
VAT number
CZ62912348
Registration number
62912348
Technical notes

Notes

The website is hosted on nginx servers with DNS managed by Active24, a known Czech hosting provider. The tech stack includes jQuery, bxSlider, slick slider, jwplayer, Leaflet for maps, Google Tag Manager, and Smartsupp Live Chat, indicating a modern but custom-built platform rather than a common CMS. Performance data is unavailable, but the site includes mobile-optimized CSS and responsive design elements. SEO is supported by proper meta tags and Open Graph data. However, the lack of HTTPS and modern security protocols represents a significant technical debt and risk. The site would benefit from performance optimization and enhanced 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

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