Skip to main content

Security report for sbvexcelsior.nl

Excelsior Rotterdam · Media · Netherlands

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

76/100

Risk levelLow

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

Excelsior Rotterdam is a professional football club based in the Netherlands with a well-established online presence. The website serves as a comprehensive platform for fans, business partners, and the community, offering news, team details, match schedules, and merchandising through an integrated WooCommerce store. The club maintains active engagement with supporters via multiple social media channels and provides clear contact information and policies, reflecting a mature digital footprint. Technically, the website is built on WordPress with WooCommerce, enhanced by modern analytics and marketing tools such as Google Tag Manager, Google Analytics, and Quantcast. The presence of DNSSEC and HTTPS with strong SSL configuration indicates a secure hosting environment managed by team.blue nl B.V. The site is mobile-optimized and SEO-friendly, leveraging Yoast SEO for metadata and structured data. From a security perspective, the site demonstrates good practices including cookie consent mechanisms and no visible vulnerabilities or exposed sensitive data. However, there is room for improvement in implementing additional HTTP security headers and publishing explicit security policies or incident response contacts. Privacy compliance is strong with comprehensive privacy and cookie policies in Dutch, aligned with GDPR requirements. Overall, the website presents a low-risk profile with a solid business credibility and technical foundation. Strategic recommendations include enhancing security headers, publishing a security policy, and considering a vulnerability disclosure program to further strengthen trust and resilience.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

  2. GDPR outside view

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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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

      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 sbvexcelsior.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.

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
62
Security headers
65
Email security
75
DNS health
70
Network security
100
GDPR outside view
85
Average
76

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

Excelsior Rotterdam operates in the sports and media sector, targeting football fans, local community members, and business partners. The club's business model includes revenue streams from ticket sales, merchandising, sponsorships, and business club memberships. The website reflects a medium-sized organization with consistent branding and active partner relationships. The presence of dedicated domains for foundation and events indicates a diversified partnership ecosystem. The club maintains a competitive market position within Dutch football, leveraging digital channels for fan engagement and commercial activities.

Security posture

The website exhibits a mature security posture with enforced HTTPS, DNSSEC, and cookie consent compliance. No critical vulnerabilities or exposed sensitive data were detected. The use of third-party analytics and marketing scripts is balanced with privacy controls. However, the absence of certain security headers and lack of published security or incident response policies represent gaps. The site would benefit from formalizing its security framework and incident response readiness to align with best practices and regulatory expectations.

Recommendations

  1. Implement additional HTTP security headers such as Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a dedicated security policy page and provide clear incident response contact channels to improve transparency and readiness.
  3. Consider establishing a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  4. Regularly audit and update third-party scripts and plugins to mitigate risks from vulnerable libraries.
  5. Enhance accessibility compliance to improve user experience for all visitors and meet regulatory standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Excelsior Rotterdam
Description
Official website of Excelsior Rotterdam football club providing news, team information, match schedules, partner details, and fan engagement.
Key services
Football team information and updates, Ticket sales, Fanshop merchandise, Business club and sponsorship opportunities, Community and supporter engagement
Content quality
good
Branding
consistent

Technology

Stack
WordPress, WooCommerce, Google Tag Manager, Google Analytics, Quantcast, Watermelon Chat Widget, jQuery
Frameworks
Yoast SEO
Platforms
WordPress CMS, WooCommerce e-commerce
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • DNSSEC enabled
  • Cookie consent mechanism implemented
  • No exposed sensitive data detected

Analytics and tracking

Services
Google Analytics, Quantcast, LinkedIn Insight
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Quantcast
Tracking pixels
LinkedIn Insight, Quantcast
Marketing tools
WooCommerce, Watermelon Chat
Transparency
good

Site quality

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

Key observations

  1. Website is a professional sports club site with active content and community engagement.
  2. Comprehensive privacy and cookie policies with consent mechanisms are implemented.
  3. Use of modern web technologies and analytics tools is evident.
  4. No critical security issues or blocking mechanisms detected.
  5. Contact information is clearly provided with official company email and phone.
  6. Multiple social media channels are linked, enhancing trust and engagement.
  7. Security headers could be improved for enhanced protection.
  8. No terms of service or explicit security policy pages found.
Technical notes

Notes

The website is built on a modern WordPress CMS platform with WooCommerce for e-commerce functionality. It integrates multiple analytics and marketing tools including Google Tag Manager, Google Analytics, Quantcast, and LinkedIn Insight. The hosting provider is team.blue nl B.V., with DNSSEC enabled and SSL certificates properly configured, ensuring secure communications. The site demonstrates good mobile optimization and SEO practices, supported by Yoast SEO plugin and structured data in JSON-LD format. Performance is moderate, with potential improvements in loading speed and accessibility. The technical stack is well-maintained but could benefit from enhanced security headers and continuous monitoring of third-party dependencies.
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 sbvexcelsior.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 sbvexcelsior.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.