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Security report for duurzaam-gastvrij.nl

Stichting KMVK · Hospitality · Netherlands

Medium risk. 5 critical or high findings in Email security, Security headers and 1 other check.

Security score

69/100

Risk levelMedium

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

Duurzaam Gastvrij is a Dutch sustainability certification organization focused on the leisure sector, operated by Stichting KMVK. The website serves as a comprehensive platform to promote sustainable business practices, certify companies, and provide resources and support for sustainability efforts. It holds a strong market position as a recognized sustainability mark endorsed by Green Key, targeting leisure businesses in the Netherlands. The site offers clear navigation, rich content, and multiple trust signals including partner logos and certifications. Technically, the website uses modern web technologies including jQuery, Swiper.js, and Google Analytics, hosted on a CMS platform (HMCMS). It is mobile-optimized and SEO-friendly, with good performance and accessibility standards. Security posture is solid with HTTPS enforced and cookie consent implemented, though some security headers could be improved. No critical vulnerabilities or exposed sensitive data were found. Overall, the site demonstrates a mature digital presence with strong business credibility and privacy compliance.

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

5 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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 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';…

  3. 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

      SSL Certificate Expires Soon

      SSL certificate expires in 27 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates

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

Keep watching duurzaam-gastvrij.nl

This scan found 21 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

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

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Full report

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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
85
Security headers
30
Email security
40
DNS health
75
Network security
100
GDPR outside view
83
Average
69

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 organization operates a certification business model, issuing sustainability marks to approximately 44 companies in the Dutch leisure sector. It leverages partnerships with recognized entities like Green Key and other sustainability organizations to enhance credibility and reach. The target customers are leisure businesses seeking to improve sustainability credentials. The website supports business growth through advisory services, communication tools, and a member portal. The partnership ecosystem is robust, including multiple sustainability and leisure sector organizations. The content and design reflect a professional and trustworthy brand, supporting ongoing engagement and market leadership in sustainability certification.

Security posture

The website exhibits a good security maturity level with HTTPS enforced and a cookie consent mechanism that respects GDPR requirements. No security.txt or incident response policies are published, which could be improved to enhance transparency. Security headers such as Content-Security-Policy and X-Frame-Options are not detected and should be implemented to mitigate common web threats. No vulnerable libraries or exposed credentials were found. The site does not appear to collect excessive user data beyond necessary analytics and consented cookies. Overall, the security posture is adequate for the business type but could benefit from additional hardening and published security policies.

Recommendations

  1. Implement Content-Security-Policy and X-Frame-Options headers to improve security against XSS and clickjacking.
  2. Publish a security policy and incident response page to increase transparency and preparedness.
  3. Regularly audit third-party scripts and libraries for vulnerabilities and update as needed.
  4. Enhance data retention disclosures related to analytics and cookies in the privacy policy.
  5. Consider adding a vulnerability disclosure program or security.txt file to facilitate responsible reporting.

Contact details published on the site

Addresses
Legal name
Stichting KMVK
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stichting KMVK
Description
Duurzaam Gastvrij is een Nederlands duurzaamheidskeurmerk voor de vrijetijdssector met 44 gecertificeerde bedrijven. Het keurmerk wordt onderschreven door Green Key en heeft als doel duurzaamheid in de vrijetijdsbranche te bevorderen en de impact op het milieu te verminderen.
Key services
Duurzaamheidskeurmerk certificering, Advies en ondersteuning, Communicatiemiddelen voor gecertificeerde bedrijven
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, jQuery 3.6.0, Swiper.js, Google Fonts, Google Analytics (gtag.js), CookieConsent.js
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in mechanism
  • No exposed sensitive data in HTML
  • No inline sensitive credentials

Analytics and tracking

Services
Google Analytics (gtag.js)
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
CookieConsent.js
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Comprehensive privacy and cookie policies with opt-in consent mechanism.
  3. Clear business focus on sustainability certification in the Dutch leisure sector.
  4. Good use of modern web technologies and SEO best practices.
  5. Strong trust indicators including certifications and partner logos.
  6. No security policy or incident response information publicly available.
  7. No vulnerability disclosure or security.txt found.
  8. Contact information is complete and clearly presented.
  9. Social media presence on Instagram, Facebook, and LinkedIn.
Technical notes

Notes

The website is built on a modern tech stack with HTML5, CSS3, JavaScript, jQuery, and Swiper.js for UI components. It uses Google Fonts and Google Analytics for typography and analytics respectively. The CMS platform appears to be HMCMS, indicated by script sources. The site is mobile responsive and optimized for SEO with proper meta tags and structured data (JSON-LD). Performance is moderate with asynchronous loading of analytics scripts and optimized images. Accessibility features are present but could be further enhanced with ARIA landmarks and roles. No major technical debt or deprecated technologies were detected. Hosting provider details are not explicitly available from the HTML content.
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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