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Security report for adyen.com

Adyen N.V. · Finance · Netherlands

Low risk. 1 critical or high finding in SSL/TLS.

Security score

87/100

Risk levelLow

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

Adyen N.V. is a leading global financial technology company specializing in end-to-end payment processing, data analytics, and financial management solutions. Founded in 2006 and headquartered in the Netherlands, Adyen serves a broad range of businesses seeking to streamline their payment infrastructure and accelerate growth. The website reflects a mature enterprise with a strong market position and a comprehensive suite of services tailored to business clients worldwide. Technically, the site leverages modern frameworks such as Nuxt.js, integrates Google Tag Manager for analytics, and employs OneTrust for privacy compliance, indicating a high level of digital maturity and user experience optimization. Security posture is robust, with HTTPS enforced, multiple security certifications including ISO 27001 and PCI DSS, and transparent incident response and vulnerability disclosure policies. The absence of WHOIS data is a notable anomaly but does not detract from the overall legitimacy and professionalism of the company. Strategic recommendations include maintaining rigorous third-party script audits, enhancing transparency on data retention, and continuing proactive security monitoring to sustain trust and compliance.

Scanned

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

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

1 finding rated critical or high. Fix these first.

  1. 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 adyen.com

This scan found 13 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
75
Security headers
75
Email security
85
DNS health
85
Network security
100
GDPR outside view
100
Average
87

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

Adyen operates in the finance and technology sectors, providing a platform that integrates payment processing with financial management and data insights. Its business model focuses on B2B services, targeting enterprises requiring scalable and secure payment solutions. The company enjoys a strong market position supported by certifications and compliance with global standards. Its partnership ecosystem includes major brands such as Uber, eBay, and Spotify, reflecting broad industry acceptance. Revenue streams likely derive from transaction fees, platform subscriptions, and value-added financial services. Growth indicators include a comprehensive digital presence, multilingual support, and extensive security and privacy frameworks. The company’s operations demonstrate strategic alignment with regulatory requirements and customer trust imperatives.

Security posture

Adyen demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and adherence to industry standards such as ISO 27001 and PCI DSS. The presence of published security policies, incident response contacts, and vulnerability disclosure mechanisms indicates readiness and transparency. No vulnerabilities or exposed sensitive data were detected in the website content. Privacy compliance is well managed with GDPR-aligned policies and cookie consent mechanisms. The security culture appears strong, supported by dedicated contacts for security and abuse. Recommendations focus on continuous monitoring, third-party script management, and user education to maintain and enhance security resilience.

Recommendations

  1. Implement continuous monitoring and regular audits of third-party scripts to prevent supply chain risks.
  2. Enhance transparency by publishing detailed data retention and processing policies accessible to users.
  3. Conduct periodic penetration testing and vulnerability assessments to identify and remediate emerging threats.
  4. Expand user education initiatives on privacy settings and security best practices to foster trust.
  5. Develop a long-term security strategy incorporating emerging technologies and compliance frameworks.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Adyen N.V.
Description
End-to-end payments, data, and financial management in a single solution. Meet the financial technology platform that helps you realize your ambitions faster.
Key services
Payment processing, Financial management, Data analytics
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Nuxt.js, Google Tag Manager, OneTrust
Frameworks
Nuxt.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Security policy and incident response published
  • Use of security certifications
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Analytics via Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
OneTrust
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 professional design.
  2. Strong emphasis on security and compliance with published policies and certifications.
  3. Use of modern web technologies and analytics tools.
  4. Clear business focus on financial technology and payment processing.
  5. No suspicious or malicious content detected.
  6. WHOIS data unavailable, which is uncommon but not necessarily suspicious for a large company.
Technical notes

Notes

The website is built using modern web technologies including Nuxt.js, which supports server-side rendering and improved SEO. Integration with Google Tag Manager and OneTrust indicates advanced analytics and privacy management capabilities. The site is mobile-optimized with responsive design and accessibility features, providing excellent user experience across devices. Performance is fast with efficient resource loading and caching strategies. No CMS was explicitly detected, suggesting a custom or framework-based solution. Hosting provider details are not disclosed but the site uses CDN assets for static content delivery. Technical risks are minimal, with opportunities for further modernization in continuous integration and deployment pipelines.
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. 49/100 −38High16 findingsView report
  2. 87/100 +13Low16 findingsView report
  3. 74/100Medium20 findingsView report
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