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Security report for euronext.com

Euronext · Finance · N/a

Medium risk. 3 critical or high findings in SSL/TLS, Security headers and 1 other check.

Security score

66/100

Risk levelMedium

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

Euronext operates as a leading pan-European stock exchange and market infrastructure provider, offering a comprehensive suite of services including listing, trading, clearing, settlement, and market data solutions. The website reflects a mature and professional digital presence, built on Drupal 10 with modern UI components and optimized for mobile devices. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though explicit security headers and published incident response contacts are absent. The absence of WHOIS data is notable but does not detract from the website's legitimacy given the professional content and market position. Overall, the site supports Euronext's role as a critical financial market infrastructure entity.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
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. 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  2. 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  3. 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

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

Keep watching euronext.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
0
Security headers
60
Email security
83
DNS health
85
Network security
100
GDPR outside view
68
Average
66

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention euronext.com, from OffSeq Breach.

Total records
478
Employees
2
Customers
448
Third parties
28
Weak passwords
14%

Latest record dated 2025-07-02 · 26 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for euronext.com.

Select it in the checkout above.

Masked preview

  • –remote1.euronext.com2025-07-02
  • –remote1.euronext.com2025-04-14

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Euronext's market position as a pan-European exchange operator is reinforced by its extensive service offerings and regulatory compliance information. The business model centers on providing capital market infrastructure to issuers, investors, and intermediaries across multiple European countries. The website's detailed navigation and content structure indicate a focus on institutional and professional audiences. The presence of ESG-related services and sector-focused listing solutions suggests strategic alignment with current market trends. The lack of direct contact emails or phone numbers on the main pages may reflect a preference for controlled communication channels via forms or dedicated portals.

Security posture

The website demonstrates a good security baseline with HTTPS and cookie consent, but lacks some advanced security headers that could mitigate risks such as clickjacking or content injection. No vulnerabilities or exposed sensitive data were detected in the analyzed content. The absence of a published security policy or incident response contact limits transparency for security researchers and users. The vulnerability reporting page is a positive indicator of security awareness. Overall, the security posture is adequate for a financial institution website but could be improved with additional headers and published policies.

Recommendations

  1. Implement and publish a comprehensive security policy and incident response contact information on the website.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection.
  3. Publish a security.txt file to facilitate responsible vulnerability disclosure.
  4. Consider providing verified company contact emails and phone numbers for improved trust and communication.
  5. Regularly audit WHOIS data and ensure domain registration information is publicly available or justified if privacy protected.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Euronext
Description
Euronext is the pan-European stock exchange and market infrastructure, connecting European economies to global capital markets to accelerate
Key services
Listing, Trading, Clearing, Central Securities Depository (CSD), Technology solutions, Market data and indices
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal 10, Bootstrap Slider, Select2, Line Awesome Font, Google Tag Manager
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 CSRF tokens (Drupal forms)

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

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. No WAF or security challenge detected
  3. WHOIS data is missing or unavailable, which is uncommon for a major corporate domain
  4. Strong presence of privacy and cookie policies with consent mechanisms
  5. No direct company contact emails or phone numbers found in the HTML snippet
  6. Multiple forms present for search and quotes but no personal data collection forms detected
  7. Use of modern web technologies and frameworks
  8. No explicit security headers detected in provided data
  9. No adult or questionable content detected
Technical notes

Notes

The website is built on Drupal 10, leveraging modern frontend libraries such as Bootstrap Slider and Select2 for enhanced user experience. Google Tag Manager is used for analytics and marketing tracking. The site is mobile-optimized with responsive design and accessibility considerations. Performance appears moderate with multiple CSS assets loaded, suggesting potential for optimization. The absence of explicit hosting provider information limits infrastructure assessment. Overall, the technical implementation is modern and professional, supporting the business needs effectively.
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. 77/100 −3Low26 findingsView report
  2. 80/100Low23 findingsView report
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