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Security report for sdx.com

SIX Digital Exchange · Finance · Switzerland

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

84/100

Risk levelLow

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

SIX Digital Exchange (SDX) is a pioneering financial market infrastructure provider offering the world's first fully regulated digital exchange and central securities depository based on blockchain technology. It operates under the regulatory oversight of FINMA and is part of the reputable SIX Group. SDX provides a secure and transparent platform for issuance, trading, settlement, and custody of digital assets, targeting institutional investors, issuers, and market participants interested in digital securities and tokenized assets. The website reflects a mature digital presence with comprehensive content, strong branding, and advanced technical implementation using WordPress and Elementor frameworks. Security posture is good with HTTPS and cookie consent mechanisms, though some security headers could be improved. WHOIS data is missing or privacy protected, which slightly reduces transparency but is likely justified given the regulated financial nature of the business. Overall, SDX presents a trustworthy and professional digital asset exchange platform with a strong market position and clear regulatory compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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 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 Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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 sdx.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
67
Security headers
80
Email security
85
DNS health
85
Network security
100
GDPR outside view
85
Average
84

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

SDX holds a unique market position as the first fully regulated digital exchange and CSD leveraging distributed ledger technology. Its affiliation with SIX Group provides strong brand credibility and operational backing. The business model focuses on digital securities issuance, trading, and custody, targeting institutional clients and capital market participants. The company offers a broad range of services including digital bonds, equity, wholesale CBDC, and Web3 services such as crypto custody and trading. The website's content and structure indicate a focus on transparency, regulatory compliance, and innovation. Marketing and analytics tools are used moderately to track user engagement and improve service delivery. The lack of public contact emails or phone numbers suggests a controlled communication approach typical for regulated financial entities.

Security posture

The website enforces HTTPS and implements a cookie consent mechanism aligned with GDPR requirements, indicating a good privacy compliance stance. However, explicit security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options are not detected, representing an area for improvement. No exposed sensitive data or vulnerable libraries were found in the HTML content. The use of third-party marketing and analytics scripts (Google Tag Manager, Marketo) is managed asynchronously to reduce performance impact. There is no visible security.txt or vulnerability disclosure page, which could enhance incident response readiness. Overall, the security posture is solid but could be strengthened by adding recommended HTTP security headers and publicizing incident response contacts.

Recommendations

  1. Implement and verify HTTP security headers including Content-Security-Policy, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy to enhance protection against common web attacks.
  2. Publish a security.txt file to provide clear vulnerability disclosure and incident response contact information.
  3. Regularly audit third-party scripts and marketing tools for security and privacy compliance.
  4. Consider adding explicit contact information for security incidents to improve trust and transparency.
  5. Maintain and update cookie consent mechanisms to comply with evolving privacy regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SIX Digital Exchange
Description
SIX Digital Exchange (SDX) is the world's first fully regulated digital exchange and central securities depository based on blockchain technology. It provides a secure platform for issuance, trading, settlement, and custody of digital assets, aiming to revolutionize financial markets infrastructure by leveraging distributed ledger technology and Web3. SDX is regulated by the Swiss Financial Market Supervisory Authority (FINMA) and focuses on digital securities, tokenization, and automation of market processes.
Key services
Digital Securities Exchange, Securities Services, Digital Bonds, Digital Equity, Wholesale CBDC, SDX Web3 Services including Crypto Custody, Crypto Trading, Digital Collateral Service
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Elementor, JetMenu, Google Tag Manager, Marketo Munchkin, Yoast SEO, jQuery
Frameworks
WordPress, Elementor
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with customization
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager and Marketo with asynchronous loading

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Marketo Munchkin
Marketing tools
Marketo
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 no blocking or WAF challenge.
  2. Content is comprehensive, professional, and focused on regulated digital asset exchange services.
  3. Strong use of structured data and SEO best practices.
  4. Cookie consent mechanism is implemented with detailed categories and user controls.
  5. No explicit contact emails or phone numbers found on main page; contact form available.
  6. No security.txt or explicit vulnerability disclosure found.
  7. No visible security headers beyond HTTPS implied.
  8. WHOIS data is missing or privacy protected, reducing transparency.
  9. Use of multiple marketing and analytics tools including Google Analytics and Marketo.
Technical notes

Notes

The website is built on WordPress CMS using the Elementor page builder and JetMenu plugin, indicating a modern and flexible content management approach. It integrates Google Tag Manager and Marketo for marketing and analytics, showing a mature digital marketing strategy. The site is mobile optimized with good accessibility and SEO practices, including structured data (JSON-LD) and Open Graph metadata for social sharing. Performance is moderate, with asynchronous loading of scripts to improve user experience. No major technical debt or deprecated technologies were detected. Hosting provider details are not explicitly found. Overall, the technical infrastructure supports a professional and scalable digital presence suitable for a regulated financial services provider.
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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