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Security report for closerstillmedia.com

CloserStill Media · Media · United Kingdom

Low risk. 2 critical or high findings in Security headers and GDPR outside view.

Security score

81/100

Risk levelLow

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

CloserStill Media is a large UK-based event management company specializing in B2B events across Business Technology, Healthcare, Learning, HR & Education, and Future Transport & Infrastructure sectors. The company operates over 130 events globally, connecting professionals and businesses to foster growth and innovation. Their market position is strong, supported by numerous industry awards and recognitions. Technically, the website is built on the SHOWOFF CMS platform with a modern JavaScript stack including jQuery, GSAP, and Slick Carousel. However, the website suffers from a critical security issue: the SSL certificate is invalid or missing, and no TLS protocols are enabled, which severely impacts secure communications and user trust. Despite this, email security is well managed with valid SPF and DMARC records. The site employs extensive analytics and marketing tools, indicating a mature digital marketing strategy but also raising privacy considerations. Overall, the website is professional and content-rich but requires urgent security improvements to protect users and maintain trust.

Scanned

This is an earlier scan of closerstillmedia.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
58/ 100 · Medium
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

2 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 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';…

  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

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

Keep watching closerstillmedia.com

This scan found 15 issues across 5 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
100
Security headers
55
Email security
85
DNS health
85
Network security
100
GDPR outside view
58
Average
81

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

CloserStill Media holds a leading position in the B2B events market with a diversified portfolio spanning multiple high-growth sectors. Their business model focuses on organizing large-scale events and providing digital engagement solutions. The company leverages data-driven insights and digital marketing extensively, as evidenced by multiple tracking and analytics integrations. Their partnership ecosystem includes a dedicated careers site and various social media channels to engage audiences. Growth indicators include recent acquisitions and expansion into new sectors. The company emphasizes integrity and global operations, targeting business professionals and enterprises. Their strong brand presence and award-winning reputation provide competitive advantages in the event management industry.

Security posture

The current security posture of the website is weak due to the absence of a valid SSL certificate and lack of enabled TLS protocols, exposing users to potential interception and data integrity risks. While email authentication mechanisms like SPF and DMARC are properly configured, the lack of HTTPS undermines overall security. No explicit security policies or incident response information are published, indicating gaps in transparency and preparedness. The site does implement HSTS, but without valid TLS, this is ineffective. The extensive use of third-party analytics and marketing scripts increases the attack surface and privacy risks. The organization should prioritize securing the website with a valid certificate and publish security and incident response policies to improve trust and compliance.

Recommendations

  1. Renew and correctly configure SSL/TLS certificates to enable HTTPS and modern TLS protocols.
  2. Implement OCSP stapling and session resumption to enhance security and performance.
  3. Publish a clear security policy and incident response plan accessible on the website.
  4. Review and minimize third-party tracking scripts to reduce privacy risks and improve compliance.
  5. Establish a data protection officer contact and enhance GDPR compliance disclosures.

Contact details published on the site

Addresses
Technical notes

Notes

The website uses a robust JavaScript-based tech stack with jQuery, GSAP, ScrollMagic, and Slick Carousel, built on the SHOWOFF CMS platform. Hosting is managed via domaincontrol.com nameservers and likely Cloudflare CDN. Performance is slow with a load time of approximately 18.5 seconds and a large page size (~2MB) with 340 resources, indicating potential optimization opportunities. Mobile optimization and accessibility are good, with responsive design and ARIA roles. SEO is well addressed with meta tags, Open Graph, and JSON-LD structured data. However, the invalid SSL certificate and disabled TLS protocols represent critical technical debt and risk. Modernizing the SSL configuration and optimizing resource loading would significantly improve user experience and security.
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

Earlier scans of this domain

  1. 74/100Medium29 findingsView report
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