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Security report for cerenovus.com

CERENOVUS · Healthcare · N/a

Low risk. 4 critical or high findings in Security headers, Email security and 1 other check.

Security score

76/100

Risk levelLow

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

CERENOVUS operates as a specialized medical technology company within the Johnson & Johnson MedTech family, focusing on stroke care solutions. The website targets healthcare professionals with detailed product and company information, reflecting a strong market position as part of a global healthcare conglomerate. The digital infrastructure leverages modern technologies such as React and Drupal 10, ensuring a responsive and accessible user experience. Privacy and cookie compliance are well implemented, indicating a mature approach to regulatory requirements. However, the absence of WHOIS data and visible security headers suggests areas for improvement in transparency and security hardening. Overall, the site presents a professional and trustworthy front with room for enhanced security practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 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

4 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 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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching cerenovus.com

This scan found 16 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.

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
65
Security headers
55
Email security
50
DNS health
85
Network security
100
GDPR outside view
100
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

CERENOVUS benefits from its association with Johnson & Johnson, leveraging brand trust and extensive healthcare market reach. The business model centers on providing innovative stroke care medical devices, targeting healthcare professionals globally. The website's integration with multiple partner domains and marketing tools indicates a well-established partnership ecosystem. Growth indicators include consistent branding updates and compliance with GDPR. The lack of direct contact information on the analyzed page suggests a controlled communication channel, typical for enterprise healthcare companies. Strategic observations highlight the importance of maintaining domain registration transparency and enhancing security policies publicly.

Security posture

The website demonstrates a moderate security posture with HTTPS usage and cookie consent mechanisms. However, the lack of detected security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces the overall security score. No vulnerabilities or exposed sensitive data were identified in the provided content. The absence of a public incident response or security policy page limits transparency. The WHOIS data absence raises concerns about domain registration legitimacy, though the strong corporate branding mitigates suspicion. Recommendations include implementing comprehensive security headers, publishing security policies, and verifying domain registration details.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a clear security policy and incident response plan accessible to users and partners to improve transparency and trust.
  3. Verify and update WHOIS domain registration information to ensure consistency and legitimacy.
  4. Enhance contact information availability for security and general inquiries to facilitate communication.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and maintain GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CERENOVUS
Description
CERENOVUS is part of the Johnson & Johnson family of healthcare medical companies focusing on providing solutions for stroke care.
Key services
Stroke care solutions, Medical devices for neurovascular conditions
Content quality
good
Branding
consistent

Technology

Stack
React, Drupal 10, Google Tag Manager, Hotjar, OneTrust Cookie Consent
Frameworks
Drupal CMS, React.js
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
70/100
Good practices seen
  • Cookie consent implemented
  • No exposed sensitive data detected

Analytics and tracking

Services
Google Analytics, Hotjar
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel, LinkedIn Insight Tag, Hotjar, Google Analytics (via GTM)
Marketing tools
Hotjar, OneTrust Cookie Consent
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and content-rich targeting healthcare professionals.
  2. Strong branding consistency with Johnson & Johnson MedTech.
  3. Comprehensive cookie and privacy compliance mechanisms implemented.
  4. No direct contact emails or phone numbers found on the analyzed page.
  5. No visible security headers detected in provided data; recommend audit.
  6. No WHOIS data available, which is unusual for a corporate domain.
  7. Multiple external trusted domains linked, including social media and corporate partners.
  8. Use of modern web technologies including React and Drupal 10 CMS.
  9. Tracking and analytics tools used responsibly with consent mechanisms.
Technical notes

Notes

The website is built on a modern technology stack combining Drupal 10 CMS with React components, enabling dynamic and responsive content delivery. Integration with Google Tag Manager, Hotjar, and OneTrust indicates a mature approach to analytics and privacy compliance. Performance is moderate, with multiple preloaded fonts and asynchronous script loading optimizing user experience. Accessibility features such as skip links and ARIA labels are present, supporting inclusive design. Technical risks include potential security header omissions and reliance on numerous external domains, which require ongoing monitoring to mitigate supply chain risks.
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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