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Security report for cesp.org

CESP · Media · France

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 3 other checks.

Security score

52/100

Risk levelMedium

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

CESP is a French non-profit organization serving as the industry body for advertising and media players focused on audience measurement and media campaign effectiveness. It holds a recognized market position by auditing currency measurement systems across multiple media types including internet, TV, press, out-of-home, radio, and cinema. The website reflects a mature digital infrastructure built on WordPress with modern plugins and analytics tools, demonstrating good technical and SEO practices. Security posture is solid with HTTPS and consent management, though some security headers could be improved. The absence of WHOIS registrant data is mitigated by consistent branding and professional content, indicating legitimacy. Overall, CESP presents a trustworthy and professional online presence aligned with its industry role.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

7 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
    • 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';…

  2. GDPR outside view

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

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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 cesp.org

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

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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
62
Security headers
15
Email security
70
DNS health
65
Network security
20
GDPR outside view
80
Average
52

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

CESP operates as an essential non-profit entity within the media and advertising sector, providing auditing and certification services that support transparency and trust in audience measurement. Its business model relies on member services and certifications such as eRetail Data Trust and Drive to Trust. The organization targets advertising and media professionals, maintaining a medium-sized footprint with a focus on quality and compliance. The website's integration of training (CESP Academy) and international outreach suggests strategic growth and industry influence. Partnerships and certifications reinforce its competitive advantage and market credibility.

Security posture

The website employs HTTPS with a good SSL configuration and integrates a consent management platform (Axeptio) to comply with privacy regulations. Security best practices include no visible exposure of sensitive data and use of updated plugins. However, the lack of explicit security headers like Content-Security-Policy and X-Frame-Options indicates room for enhancement. No vulnerabilities or malicious indicators were detected in the source code. Incident response and vulnerability disclosure mechanisms are not publicly documented, which could be improved to strengthen security culture and readiness.

Recommendations

  1. Implement Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options headers to enhance security.
  2. Publish a dedicated security policy and vulnerability disclosure page to improve transparency and incident response readiness.
  3. Regularly audit and update all WordPress plugins and themes to mitigate potential vulnerabilities.
  4. Enhance accessibility features to improve compliance and user experience for all visitors.
  5. Consider publishing data retention policies and more detailed privacy compliance documentation.

Contact details published on the site

Addresses
Legal name
Centre d'Etude des Supports de Publicités
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CESP
Description
CESP is the non-profit industry body for the advertising and media industry players with an interest in measuring audiences and the effectiveness of media campaigns. CESP audits all currency measurement systems on behalf of its members across every type of media: the internet, TV, the press, out-of-home, radio and the cinema.
Key services
auditing currency measurement systems, certifications (eRetail Data Trust, Drive to Trust), audits for audience measurement across media types, CESP Academy training
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Elementor, Smart Slider 3, Google Analytics (MonsterInsights), Axeptio (consent management), Yoast SEO, jQuery
Frameworks
PHP (WordPress), JavaScript
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Consent management via Axeptio
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
MonsterInsights, Axeptio
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professionally presented and relevant to media and advertising industry.
  3. Strong SEO and structured data implementation.
  4. Privacy and cookie policies are present with consent management.
  5. WHOIS data is unavailable or privacy protected, but no suspicious indicators found.
  6. No exposed sensitive data or security vulnerabilities detected in source.
  7. Uses modern WordPress plugins and analytics tools.
  8. No suspicious or malicious external domains linked.
Technical notes

Notes

The website is built on WordPress CMS using Elementor for page building and Smart Slider 3 for interactive content. It leverages Google Fonts and Google Analytics via MonsterInsights for tracking. The presence of Axeptio indicates a mature approach to cookie consent and privacy compliance. Performance is moderate with responsive design and mobile optimization evident. Some custom CSS and JavaScript are used for styling and functionality. The site lacks explicit hosting provider information but appears professionally maintained with recent content updates. Technical debt is low, but security header implementation and accessibility could be improved.
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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