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Security report for astellas.com

Astellas Pharma Inc. · Healthcare · Japan

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

79/100

Risk levelLow

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

Astellas Pharma Inc. is a globally recognized pharmaceutical company headquartered in Tokyo, Japan, focused on improving health worldwide through innovative pharmaceutical products and advanced research in regenerative medicine and immuno-oncology. The website reflects a mature enterprise with comprehensive content targeting healthcare professionals, investors, and partners, emphasizing transparency and sustainability. Technically, the site is built on Drupal 10, leveraging modern web technologies and standard security practices, including HTTPS and cookie consent mechanisms. Security posture is strong with appropriate headers and no visible vulnerabilities, though explicit security policies and incident response contacts are absent. The WHOIS data is notably missing, which is unusual for a company of this scale but likely due to registry or query limitations rather than malicious intent. Overall, the website demonstrates high professionalism, good privacy compliance, and solid business credibility.

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

3 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. 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 astellas.com

This scan found 16 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

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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
75
Security headers
55
Email security
75
DNS health
80
Network security
100
GDPR outside view
88
Average
79

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

Astellas operates in the healthcare sector with a focus on pharmaceutical innovation, including regenerative medicine and gene therapies. The company maintains a strong investor relations presence and sustainability initiatives aligned with global standards such as ISO26000. Partnerships with specialized biotech firms and subsidiaries enhance its R&D capabilities. The business model centers on research-driven drug development and commercialization, targeting global markets. The website's detailed sections on innovation, investors, and sustainability indicate a strategic approach to stakeholder engagement and market positioning. The absence of direct contact emails or phone numbers on the public site suggests controlled communication channels, typical for large enterprises.

Security posture

The website enforces HTTPS with excellent SSL configuration and implements key security headers such as Content-Security-Policy and Strict-Transport-Security. Cookie consent is managed via OneTrust, indicating GDPR compliance efforts. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the lack of a published security policy, incident response information, or vulnerability disclosure program limits transparency and may impact trust from security-conscious users. The security score is strong but could be improved by adding explicit security governance documentation and direct security contact channels.

Recommendations

  1. Publish a dedicated security policy page outlining security governance and practices.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide direct security contact information for incident reporting and inquiries.
  4. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.
  5. Enhance transparency around data protection officer contact details and data retention policies.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Astellas Pharma Inc.
Description
Astellas Pharma Inc., based in Tokyo, Japan, is a company dedicated to improving the health of people around the world through the provision of innovative and reliable pharmaceutical products.
Key services
Pharmaceutical products, Research and development, Clinical trials, Investigator sponsored research, Sustainability initiatives
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal 10, jQuery, Google Tag Manager, OneTrust Cookie Consent
Frameworks
Drupal
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML
  • Secure forms with autocomplete off

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
OneTrust Cookie Consent
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and navigation
  2. Strong focus on pharmaceutical innovation and sustainability
  3. Comprehensive privacy and cookie policies with consent mechanisms
  4. No direct company contact emails or phone numbers found in HTML
  5. WHOIS data unavailable, which is unusual but not necessarily suspicious
  6. Use of modern CMS (Drupal 10) and standard security headers
  7. External links to partner and subsidiary domains are legitimate
  8. No signs of WAF or blocking mechanisms detected
Technical notes

Notes

The website is powered by Drupal 10, a modern and secure CMS platform, and uses jQuery and Google Tag Manager for analytics and tracking. The presence of OneTrust scripts indicates a mature approach to cookie consent and privacy compliance. The site is mobile-optimized with responsive design and good accessibility features. Performance is moderate, likely due to the complexity and size of content. No hosting provider details were identified from the HTML content. The technical stack is appropriate for an enterprise pharmaceutical company, with opportunities to improve performance and add more explicit technical metadata for SEO and accessibility.
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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