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Security report for opentennisclub.fi

Open Tennis Club · Other · Finland

High risk. 10 critical or high findings in GDPR outside view, Network security and 1 other check.

Security score

36/100

Risk levelHigh

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

Open Tennis Club is a small, active tennis club based in Helsinki, Finland, focused on providing tennis activities and competitions for adults and young adults. The club organizes its own OTC Cup series and supports both hobbyist and competitive players. The website is built on WordPress and hosted on Cloudpit infrastructure, featuring a modern design with clear navigation and bilingual content in Finnish and English. However, the site lacks critical privacy and cookie policies, and the SSL certificate is misconfigured, which undermines user trust and security. The Google Analytics plugin is installed but not configured, and the Facebook feed integration is broken due to API changes. Security headers and HTTPS best practices are not fully implemented, indicating room for improvement in security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
0/ 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

10 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

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. 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 opentennisclub.fi

This scan found 24 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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Recommended

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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
67
Security headers
15
Email security
50
DNS health
85
Network security
0
GDPR outside view
0
Average
36

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 · found on this site
  • 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 club operates a membership-based model offering tennis tournaments, team participation, and social events, targeting tennis enthusiasts in the Helsinki area. Its market position is that of a niche local sports club with active member engagement and community focus. The website content and structured data reinforce the club's identity and services, while social media presence on Facebook supports outreach. The lack of privacy and cookie policies may expose the club to compliance risks under GDPR. The technical infrastructure is standard for small organizations, relying on WordPress and common plugins, with hosting by Cloudpit. The club could benefit from improving digital maturity by addressing security and compliance gaps.

Security posture

The website uses HTTPS but suffers from a critical SSL certificate mismatch, which can cause browser warnings and reduce user trust. No HSTS or security headers are present, leaving the site vulnerable to certain attacks. The Google Analytics plugin is not configured, and the Facebook feed integration is broken, indicating maintenance gaps. No incident response or security policy information is available. DNS records show no DNSSEC or CAA records, which could improve domain security. Overall, the security posture is basic and requires improvements to meet modern standards and GDPR compliance.

Recommendations

  1. Replace or reissue SSL certificate to correctly cover opentennisclub.fi domain to eliminate browser warnings.
  2. Implement and publish privacy and cookie policies with clear consent mechanisms to comply with GDPR.
  3. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Configure Google Analytics properly or remove unused plugins to reduce attack surface.
  5. Fix or update Facebook feed integration to avoid error messages and improve user experience.
  6. Enable HSTS with includeSubDomains and preload to enforce HTTPS security.
  7. Consider adding DNSSEC and CAA records to improve DNS security.

Contact details published on the site

Addresses
Technical notes

Notes

The website is built on WordPress 6.8.1 with PHP and jQuery 3.7.1, using plugins like Easy Facebook Likebox and MonsterInsights. Hosting is provided by Cloudpit, indicated by DNS nameservers. The site uses modern fonts and responsive design, but performance metrics are missing or zero, suggesting incomplete performance data. The SSL certificate is valid in time but issued for a different domain (*.zoner.fi), causing trust issues. No TLS protocols or cipher suites are detected, possibly due to scan limitations or misconfiguration. The site lacks advanced security headers and accessibility features are basic. SEO metadata is present but the robots meta tag is set to noindex, nofollow, which may limit search engine visibility. Overall, the technical infrastructure is standard but requires security and compliance improvements.
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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