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Security report for mariniersmuseum.nl

Mariniersmuseum · Hospitality · Netherlands

Medium risk. 3 critical or high findings in Security headers.

Security score

72/100

Risk levelMedium

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

Mariniersmuseum is a specialized cultural institution and museum located in Rotterdam, Netherlands, dedicated to telling the story of the Korps Mariniers, the elite unit of the Royal Netherlands Navy. The museum offers exhibitions, educational programs, events, and ticket sales targeting a broad audience including families, school groups, and military history enthusiasts. It holds a strong regional position as a niche museum with a focus on maritime military heritage. Technically, the website is built on WordPress with modern technologies such as Algolia search, Google Tag Manager, and caching mechanisms to ensure fast performance and good SEO. The site is mobile-optimized and accessible, with clear navigation and professional design. Security posture is good with HTTPS enforced and cookie consent implemented, though some security headers could be improved. Privacy compliance is strong with a comprehensive privacy and cookie policy. Overall, the website is trustworthy, professional, and well-maintained, reflecting the museum's credibility and commitment to user experience.

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

3 findings rated critical or high. Fix these first.

  1. 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';…

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Keep watching mariniersmuseum.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.

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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
90
Security headers
15
Email security
60
DNS health
85
Network security
100
GDPR outside view
83
Average
72

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention mariniersmuseum.nl, from OffSeq Breach.

No leaked records found

Breach holds no records for mariniersmuseum.nl right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The Mariniersmuseum operates in the hospitality, government, and non-profit sectors, focusing on cultural education and heritage preservation. Its business model revolves around museum visits, educational outreach, event hosting, and merchandise sales. The museum leverages partnerships with related institutions such as the Nationaal Militair Museum and the Marinemuseum, enhancing its ecosystem and reach. The target audience includes local residents, tourists, school groups, and military history enthusiasts. The museum's digital presence supports its mission with rich content, social media engagement, and online ticketing. Growth indicators include active event programming and volunteer recruitment. The museum maintains a consistent brand and professional online presence, supporting its market position as a key cultural institution in Rotterdam.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and no visible exposure of sensitive data. Cookie consent mechanisms align with GDPR requirements, and privacy policies are comprehensive. However, the absence of explicit security headers such as Content-Security-Policy and X-Frame-Options suggests room for improvement. No incident response or security contact information is provided, which could enhance transparency and readiness. Third-party scripts like Google Tag Manager and Algolia are used responsibly, but regular audits are recommended to mitigate supply chain risks. Overall, the site is secure for typical user interactions but could benefit from enhanced header policies and incident response disclosures.

Recommendations

  1. Implement security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen browser security.
  2. Publish an incident response policy or provide a dedicated security contact email to improve transparency and readiness.
  3. Regularly audit third-party scripts and dependencies for vulnerabilities and update them promptly.
  4. Enhance data retention disclosures in privacy policy to clarify user data handling timelines.
  5. Continue to monitor and improve accessibility features to maintain compliance with evolving standards.

Contact details published on the site

Addresses
Legal name
Mariniersmuseum
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mariniersmuseum
Description
Het Mariniersmuseum vertelt het verhaal van het Korps Mariniers. Een leuk dagje uit voor jong én oud. Klaar voor actie?
Key services
museum exhibitions, educational programs, event hosting, ticket sales, guided tours, volunteering opportunities
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Algolia Search, Google Tag Manager, Google Analytics, SVG, W3 Total Cache, Memcached
Frameworks
Yoast SEO, Modernizr
Platforms
WordPress
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent overlay
  • No exposed sensitive data in HTML
  • Use of async scripts to improve performance

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

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. Content is rich, well-structured, and professionally presented.
  3. Strong focus on user privacy with cookie consent and privacy policy.
  4. Use of modern web technologies and SEO best practices.
  5. Clear contact information and social media presence.
  6. No signs of suspicious or malicious activity.
Technical notes

Notes

The website is built on WordPress CMS with a modern tech stack including Algolia for search, Google Tag Manager for analytics and marketing, and W3 Total Cache with Memcached for performance optimization. The site uses asynchronous JavaScript loading and preloading of fonts and scripts to improve load times. SEO is enhanced via Yoast SEO plugin with structured JSON-LD data and Open Graph tags. The site is mobile-optimized and accessible with ARIA labels and skip links. Hosting appears stable with fast response times. Technical risks are low but could be further mitigated by adding security headers and ensuring all third-party scripts are up to date.
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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