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Security report for ssbu.nl

Stadsschouwburg Utrecht · Hospitality · Netherlands

Low risk. No critical or high findings.

Security score

84/100

Risk levelLow

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

Stadsschouwburg Utrecht is a well-established cultural venue in the Netherlands, offering theater performances, event hosting, and hospitality services. The website reflects a professional and consistent brand image, targeting a broad audience interested in cultural events and theater. The business model centers on ticket sales, venue rental, and food and beverage services, positioning itself as one of the largest theaters in the country. Technically, the website employs modern JavaScript libraries, integrates with third-party ticketing platforms, and supports multilingual access via Google Translate. The site is mobile-optimized and accessible, with good SEO practices and structured event data. Security posture is solid with HTTPS and DNSSEC enabled, though there is room for improvement in publishing explicit security policies and incident response contacts. Privacy compliance is strong, featuring a comprehensive privacy and cookie policy with user consent mechanisms. Overall, the site is trustworthy and professionally maintained, with no critical security or content safety concerns.

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

No critical or high findings. These medium findings are worth fixing next.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Medium

      Privacy policy may not be GDPR compliant

      Privacy policy lacks explicit GDPR compliance elements

      What to do: Update privacy policy to explicitly address GDPR requirements and user rights

  2. 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.

    • Medium

      No DKIM record found

      DKIM adds cryptographic signatures to emails

      What to do: Configure DKIM with your email provider

    • Medium

      No MTA-STS Policy

      MTA-STS enforces TLS for email delivery

      What to do: Implement MTA-STS to prevent downgrade attacks

  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.

    • Medium

      SSL Certificate Expires Within 90 Days

      SSL certificate expires in 52 days

      What to do: Plan SSL certificate renewal

  4. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • Medium

      DNSSEC Not Enabled

      DNSSEC is not configured for this domain

      What to do: Enable DNSSEC to prevent DNS spoofing attacks

      • CAPEC-142
      • RFC 4033
      • RFC 4035

Keep watching ssbu.nl

This scan found 15 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
95
Security headers
95
Email security
70
DNS health
60
Network security
100
GDPR outside view
83
Average
84

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 ssbu.nl, from OffSeq Breach.

No leaked records found

Breach holds no records for ssbu.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 theater operates in the hospitality sector with a focus on cultural entertainment. It leverages partnerships with ticketing platforms (Ticketmatic) for sales and user account management, indicating a mature digital ecosystem. The presence of multiple social media channels and active event promotion suggests a strong community engagement strategy. The domain age and registration data support the legitimacy and longevity of the business. Revenue streams likely include ticket sales, venue rentals, and food and beverage services. The website content and navigation cater to both visitors and event organizers, enhancing user experience and operational efficiency.

Security posture

The website demonstrates a good security baseline with HTTPS and DNSSEC enabled, reducing risks of interception and DNS spoofing. Cookie consent is implemented with options for analytics and marketing cookies, aligning with GDPR requirements. However, the absence of a dedicated security policy page and incident response contact information limits transparency and preparedness. No security headers were explicitly detected in the HTML content, suggesting potential improvements in HTTP header configurations. Third-party scripts such as Google Analytics and Hotjar are used, which require ongoing monitoring for vulnerabilities. Overall, the security posture is good but could be enhanced by formalizing policies and improving header security.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and controls.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and enforce security headers like Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Regularly audit and update third-party scripts to mitigate vulnerabilities.
  5. Enhance transparency by adding a terms of service page and improving cookie policy details.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stadsschouwburg Utrecht
Description
Stadsschouwburg Utrecht is een van de grootste theaters van Nederland. We hebben twee theaterzalen, een café (Mevr. Dudok) en het theaterrestaurant Zindering. Naast ons veelzijdige programmering is er vaak nog ruimte voor jouw evenement (verhuur).
Key services
Theater performances, Event venue rental, Café and restaurant services, Ticket sales
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Google Analytics, Hotjar, Swiper.js, Google Translate Widget
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • DNSSEC enabled
  • Cookie consent with opt-in/out
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Hotjar
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Hotjar
Marketing tools
Google Translate
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Comprehensive event listings with ticket purchasing integration.
  3. Cookie consent mechanism is implemented with detailed options.
  4. Multiple social media channels actively linked.
  5. No visible security policy or incident response information.
  6. No terms of service page detected.
  7. Use of multiple third-party analytics and marketing scripts.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website uses a modern JavaScript-based front-end with libraries such as Swiper.js for sliders and Google Tag Manager for analytics management. Integration with Ticketmatic platforms for ticket sales and user accounts indicates a robust e-commerce backend. The site is mobile responsive and includes accessibility features such as skip links and an accessibility menu. Performance is moderate, with deferred script loading and optimized images. The use of Google Translate enhances international accessibility. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. Overall, the technical infrastructure supports a good user experience but could benefit from enhanced security headers and performance optimizations.
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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