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Security report for argenx.com

argenx · Healthcare · Belgium

Low risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

82/100

Risk levelLow

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

argenx is a well-established global immunology company founded in 2008, specializing in engineering innovative immunology solutions to improve patient lives. The company maintains a strong market position with a comprehensive pipeline, FDA approvals, and a focus on patient engagement and investor relations. Their business model centers on biopharmaceutical development, clinical trials, and partnered research programs targeting rare autoimmune diseases and immunology conditions. Technically, the website is built on Adobe Experience Manager with modern frameworks like Bootstrap and integrates advanced technologies such as Google Tag Manager and Google reCAPTCHA Enterprise for security and analytics. The site is well-optimized for performance, mobile responsiveness, accessibility, and SEO, reflecting a mature digital infrastructure. From a security perspective, the site enforces HTTPS, uses bot protection, and implements cookie consent mechanisms, though it could improve by adding explicit security headers like Content-Security-Policy and X-Frame-Options. No vulnerabilities or exposed sensitive data were detected, indicating a strong security posture. Overall, the website demonstrates high professionalism, trustworthiness, and compliance with privacy regulations such as GDPR. The domain registration data aligns with the company's claims, reinforcing legitimacy. There are no signs of malicious activity or content safety concerns, making it a safe and credible resource for patients, investors, and partners.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

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. 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 argenx.com

This scan found 15 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
72
Security headers
55
Email security
85
DNS health
90
Network security
100
GDPR outside view
88
Average
82

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

argenx operates in the healthcare and biotechnology sectors with a focus on immunology innovation. The company leverages a business model based on drug development, clinical trials, and collaborations with academic and industry partners. Their market positioning is strong, supported by FDA approvals and a global presence. The website targets multiple audiences including patients, investors, and healthcare professionals, providing comprehensive resources and transparent corporate governance information. The company shows growth potential through its pipeline and partnered programs, with a clear emphasis on ethics and responsibility. The digital presence supports their strategic goals with professional content and effective communication channels.

Security posture

The website exhibits a mature security posture with HTTPS enforced and integration of Google reCAPTCHA Enterprise to mitigate automated threats. Cookie consent and privacy policies are well implemented, supporting GDPR compliance. However, the absence of explicit security headers such as Content-Security-Policy and X-Frame-Options represents an area for improvement. No exposed sensitive data or vulnerable libraries were found in the HTML content. Incident response contact information or vulnerability disclosure policies are not explicitly provided, which could enhance transparency and readiness. Overall, the security measures align well with industry best practices for a healthcare-focused organization.

Recommendations

  1. Implement explicit Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options HTTP headers to strengthen security.
  2. Publish a clear vulnerability disclosure policy and provide dedicated incident response contact channels.
  3. Regularly audit third-party scripts and libraries to ensure no vulnerabilities are introduced.
  4. Enhance transparency by listing Data Protection Officer contact details and security certifications if applicable.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Legal name
argenx SE
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
argenx
Description
argenx is a global immunology company committed to improving the lives of patients through immunology innovation, focusing on engineering life-changing immunology solutions.
Key services
Immunology drug development, Clinical trials, Patient support and resources, Partnered research programs
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Google reCAPTCHA Enterprise, Adobe Helix RUM, Cloudflare DNS
Frameworks
Bootstrap
Platforms
Adobe Experience Manager (AEM)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA Enterprise for bot protection
  • Cookie consent banner implemented
  • No exposed sensitive data found in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website uses modern web technologies and frameworks.
  2. Strong focus on patient engagement and investor relations.
  3. Comprehensive cookie consent and privacy compliance mechanisms.
  4. No signs of malicious or suspicious activity.
  5. Content is professionally presented and well-structured.
Technical notes

Notes

The website is built on Adobe Experience Manager CMS with Bootstrap framework, ensuring responsive design and accessibility. It uses Cloudflare for DNS and likely CDN services, contributing to fast loading times and reliable hosting. Analytics and marketing tools include Google Tag Manager and Google reCAPTCHA Enterprise, indicating a focus on performance monitoring and security. The site structure is well-organized with clear navigation menus and multilingual support. There is no evidence of technical debt or deprecated technologies. Opportunities exist to enhance security headers and incident response capabilities to further reduce technical 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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