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Security report for noa-vu.nl

NOA · Education · Netherlands

High risk. 10 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

42/100

Risk levelHigh

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

NOA is a Dutch company specializing in scientifically validated online assessments and psychological tests, primarily serving educational institutions, HR professionals, and reintegration sectors. With over 25 years of experience and origins linked to the Vrije Universiteit, NOA holds a strong market position supported by ISO 9001 and ISO 27001 certifications. The website reflects a professional and consistent brand with comprehensive content and clear navigation, targeting Dutch-speaking audiences. Technically, the site uses Microsoft IIS with ASP.NET and Umbraco CMS, integrating modern tools like Google Tag Manager and Elmah.io for error logging. However, the absence of HTTPS is a critical security gap, exposing users to potential risks. Privacy and cookie policies are well implemented with consent mechanisms, aligning with GDPR requirements. Contact information is complete and accessible, enhancing business credibility.

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 noa-vu.nl

This scan found 20 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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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
0
Security headers
15
Email security
50
DNS health
85
Network security
100
GDPR outside view
0
Average
42

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

NOA operates a B2B business model offering online assessments, training, and support services. Its competitive advantage lies in its scientific foundation, long-standing market presence, and trusted certifications. The company targets education and HR sectors, leveraging partnerships with notable Dutch institutions. Revenue likely derives from licensing assessments, training programs, and support subscriptions. The website's integration with external partners and marketing tools indicates a mature digital presence. Growth indicators include a large active customer base and daily assessments conducted. Strategic observations suggest focusing on improving security posture to maintain trust and compliance.

Security posture

The website currently lacks HTTPS, which is a critical vulnerability impacting data confidentiality and user trust. No advanced security headers or TLS protocols are enabled, and session security features are absent. While no known vulnerabilities like Heartbleed or POODLE are detected, the missing SSL certificate severely limits security maturity. Privacy policies and cookie consent are well handled, but incident response and vulnerability disclosure mechanisms are not evident. The security culture appears moderate but requires urgent improvements in transport security and header hardening to meet modern standards.

Recommendations

  1. Install and enforce HTTPS with a valid SSL/TLS certificate immediately.
  2. Implement HTTP Strict Transport Security (HSTS) with preload and includeSubDomains.
  3. Add security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options.
  4. Establish a public vulnerability disclosure policy and incident response contact.
  5. Regularly audit and update server and application components to reduce attack surface.

Contact details published on the site

Addresses
Technical notes

Notes

The website is hosted on Microsoft IIS 10.0 with ASP.NET and uses Umbraco CMS. It integrates Google Tag Manager for analytics and Elmah.io for error logging. Performance metrics are not provided but inferred as slow due to zero load time/resource count data. The site is mobile optimized with responsive images and fonts. SEO is supported with meta tags and canonical URLs. However, the lack of HTTPS and modern TLS protocols is a significant technical debt. Hosting via TransIP DNS servers indicates a reputable provider. The site uses modern front-end assets but could improve accessibility features. Overall, the technical infrastructure is functional but requires security modernization.
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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