Skip to main content

Security report for excelsiorevents.nl

Excelsior Events · Hospitality · Netherlands

Medium risk. 7 critical or high findings in GDPR outside view and Security headers.

Security score

50/100

Risk levelMedium

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

Excelsior Events is a small hospitality business operating a unique event venue located at the Excelsior Stadion in Rotterdam, Netherlands. The company offers venue rental and event organization services with in-house catering, targeting corporate and private clients seeking a sports-themed event location. The website is professionally designed using WordPress with SEO optimization and structured data, providing a good user experience and clear navigation. However, it lacks critical privacy and cookie policies, and no visible security headers are implemented, which are important for compliance and security posture. The domain registration is consistent with the business location and age, indicating legitimacy. Overall, the website is functional and credible but requires improvements in privacy compliance and security best practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

7 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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  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 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';…

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

Keep watching excelsiorevents.nl

This scan found 26 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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
15
Email security
70
DNS health
65
Network security
40
GDPR outside view
25
Average
50

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 company leverages a niche market by offering event spaces within a sports stadium, appealing to clients looking for a distinctive venue in Rotterdam. Their business model focuses on venue rental combined with catering and event customization. The website content and structure support their market positioning, but absence of privacy and security policies may affect trust with privacy-conscious clients. No partnerships or subsidiaries are indicated. The company appears to be in early growth stages given the recent domain registration in 2022.

Security posture

The website uses HTTPS with DNSSEC enabled, which is a strong foundation for security. However, the absence of security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security reduces protection against common web attacks. No incident response or vulnerability disclosure information is provided, limiting transparency and readiness. No vulnerable libraries or exposed sensitive data were detected. The security score is moderate but can be improved by implementing recommended headers and policies.

Recommendations

  1. Publish a comprehensive privacy policy and cookie consent mechanism to improve GDPR compliance.
  2. Implement standard security headers to enhance protection against web vulnerabilities.
  3. Add a visible security policy and incident response contact information to increase transparency.
  4. Regularly audit and update third-party scripts and plugins to mitigate vulnerabilities.
  5. Consider adding a vulnerability disclosure or security.txt file to encourage responsible reporting.

Contact details published on the site

Addresses
Legal name
Excelsior Events
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Excelsior Events
Description
Excelsior Events offers a centrally located, unique event venue in a sports atmosphere at the Excelsior Stadion Rotterdam. They provide tailored event solutions for corporate and private events ranging from 20 to 1000 guests, including catering from their own kitchen with various food and drink options.
Key services
Venue rental, Event organization, Catering services, Food trucks and cocktail bars, Custom event planning
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Yoast SEO plugin, Lightbox.js, Simple Calendar
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • DNSSEC enabled

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Marketing tools
Yoast SEO
Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with rich content and images.
  2. No privacy or cookie policies are present, which is a compliance gap.
  3. Contact information is clearly provided including email, phone, and physical address.
  4. No visible security headers detected in the HTML source.
  5. Uses WordPress CMS with common plugins like Yoast SEO and Lightbox.
  6. No social media links found on the homepage or footer.
  7. No visible forms except a search form with a single text input.
  8. No visible security or incident response policies or contacts.
  9. No advertising or tracking scripts detected beyond SEO plugin.
  10. Good use of structured data (JSON-LD) for SEO and organization info.
Technical notes

Notes

The website is built on WordPress CMS with common plugins such as Yoast SEO for search optimization and Lightbox for image display. It uses jQuery and a simple calendar script for functionality. Hosting is provided by team.blue nl B.V., a Dutch registrar and hosting provider. Performance is moderate with good mobile optimization and basic accessibility features. SEO is well addressed with meta tags, Open Graph, and JSON-LD structured data. There is room for improvement in accessibility and performance optimization.
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

Reviews of this site

Share your experience with excelsiorevents.nl. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review excelsiorevents.nl.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.