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Security report for partnerwaarschuwing.nl

Low risk. 1 critical or high finding in SSL/TLS.

Security score

79/100

Risk levelLow

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

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

1 finding rated critical or high. Fix these first.

  1. 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.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching partnerwaarschuwing.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
67
Security headers
90
Email security
70
DNS health
65
Network security
100
GDPR outside view
83
Average
79

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

Partnerwaarschuwing.nl occupies a niche within the Dutch public health sector, focusing on STI partner notification. Its competitive advantage lies in its anonymity feature and backing by established health organizations, which enhances credibility and user trust. The business model is non-profit and service-oriented, aimed at public health improvement rather than commercial gain. Revenue streams are not applicable as it is a public service. The target customers are individuals at risk or diagnosed with STIs in the Netherlands. Growth indicators include sustained domain registration since 2012 and integration with major health partners. The partnership ecosystem includes GGD, Soa Aids Nederland, and huisartsen, which strengthens its operational reach and legitimacy. The platform's operations are stable with a clear mission and consistent branding.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and DNSSEC enabled, reducing risks of interception and DNS spoofing. No exposed sensitive data or vulnerable libraries were found in the HTML content. However, the absence of security headers such as Content-Security-Policy and X-Frame-Options is a gap that could be exploited in certain attack scenarios. There is no public incident response or vulnerability disclosure policy, which limits transparency and readiness for security incidents. Analytics tracking is done responsibly with user consent mechanisms in place. Overall, the security maturity is good but could be improved by adopting additional HTTP security headers and publishing formal security policies.

Recommendations

  1. Implement HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a clear security policy and incident response contact information to improve transparency and user trust.
  3. Develop and publish a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  4. Enhance accessibility features to improve usability for users with disabilities.
  5. Regularly review and update privacy and cookie policies to maintain GDPR compliance and reflect any changes in data processing.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Partnerwaarschuwing.nl (collaboration of GGD’en, Soa Aids Nederland and huisartsen)
Description
A platform to anonymously warn sexual partners about STIs (soa). It is a joint initiative by Dutch public health organizations including GGD, Soa Aids Nederland, and general practitioners.
Key services
Anonymous partner notification for STIs, Information and guidance about STIs and partner warning, Code-based access for warnings and notifications
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, Font Awesome 6, Matomo Analytics
Frameworks
Next.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • DNSSEC enabled
  • No exposed sensitive data in HTML
  • Secure input fields with maxlength and disabled button until input

Analytics and tracking

Services
Matomo Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo Analytics
Marketing tools
Matomo Tag Manager
Transparency
basic

Site quality

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

Key observations

  1. Website is a public health service platform for anonymous STI partner notification.
  2. Content is primarily in Dutch with an option for English language toggle.
  3. No direct contact emails or phone numbers found on the site.
  4. Privacy and cookie policies are present and GDPR compliant.
  5. No terms of service or explicit security policy pages found.
  6. Uses Matomo for analytics with heatmap and session recording.
  7. No visible security.txt or vulnerability disclosure policy.
  8. No WAF or blocking mechanisms detected; site fully accessible.
  9. WHOIS data is transparent and consistent with the website's purpose.
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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