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Security report for coreledger.net

CoreLedger AG · Technology · Switzerland

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

68/100

Risk levelMedium

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

CoreLedger AG is a specialized blockchain technology company founded in 2016, offering expert blockchain consulting and customized software development services to businesses seeking secure and innovative blockchain solutions. The company positions itself as a professional and trusted provider in the blockchain technology sector, targeting enterprises and organizations aiming to leverage blockchain technology at scale. The website reflects a medium-sized business with a consistent brand presence and professional content tailored to its target audience. Technically, the website is built on WordPress with Elementor, utilizing modern JavaScript libraries and tracking tools such as Microsoft Clarity, Google Tag Manager, and LinkedIn Insight Tag. Hosting and DNS services are provided via Cloudflare, ensuring good performance and security. The security posture is strong with HTTPS enabled and appropriate security headers, although DNSSEC is not enabled, representing a minor improvement opportunity. Privacy compliance is lacking due to the absence of privacy and cookie policies and consent mechanisms, which should be addressed to meet GDPR and other regulations. No incident response or vulnerability disclosure information is published, indicating a gap in security transparency. Overall, the website is professional, secure, and trustworthy but would benefit from enhanced privacy and security policy disclosures.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

5 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 X-Frame-Options header

      Prevents clickjacking attacks

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

    • 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 Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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 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 coreledger.net

This scan found 22 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
65
Security headers
15
Email security
85
DNS health
65
Network security
100
GDPR outside view
80
Average
68

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 coreledger.net, from OffSeq Breach.

Total records
105
Employees
0
Customers
105
Third parties
0
Weak passwords
11%

1 subdomain 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 coreledger.net.

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

Technical appendix

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

Business context

Business profile

CoreLedger AG operates in the blockchain technology sector, focusing on consulting and software development services. Its business model revolves around delivering customized blockchain solutions to enterprises, positioning itself as a niche technology provider with a strong emphasis on security and innovation. The company leverages a multi-channel marketing approach with social media presence on Facebook, Twitter, LinkedIn, and YouTube. The domain age and WHOIS data support the legitimacy and maturity of the business. The absence of privacy and security policies suggests an area for compliance improvement. The company appears to have a moderate size and targets business clients rather than consumers, focusing on blockchain adoption at scale. The use of multiple analytics and marketing tools indicates an active effort to understand and engage its audience. No related or partner domains were identified from the data provided.

Security posture

The website demonstrates a good security posture with HTTPS enforced and multiple security headers implemented, including Strict-Transport-Security, Content-Security-Policy, and X-Frame-Options. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the lack of DNSSEC reduces DNS security. The absence of published security policies, incident response plans, or vulnerability disclosure mechanisms limits transparency and preparedness from a security governance perspective. The use of third-party tracking scripts introduces a moderate level of user tracking, which should be balanced with privacy compliance efforts. Overall, the security maturity is good but could be enhanced by publishing formal security and incident response documentation and enabling DNSSEC.

Recommendations

  1. Enable DNSSEC to improve domain name system security.
  2. Publish comprehensive privacy and cookie policies including consent mechanisms to ensure GDPR compliance.
  3. Add a publicly accessible vulnerability disclosure policy and incident response contact information to enhance security transparency.
  4. Improve website accessibility features to better serve all users.
  5. Regularly review and audit third-party scripts and tracking tools to minimize security risks and privacy concerns.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CoreLedger AG
Description
CoreLedger team offers customized blockchain software development for businesses seeking secure & innovative solutions.
Key services
blockchain software development, blockchain consulting
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Font Awesome, Google Tag Manager, Microsoft Clarity, LinkedIn Insight Tag, Bing Ads, WordPress
Frameworks
Elementor
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enabled
  • Use of security headers
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Microsoft Clarity, Google Tag Manager, LinkedIn Insight Tag, Bing Ads
Tracking level
moderate
Privacy practices
poor

Advertising

Ad networks
Bing Ads
Tracking pixels
Microsoft Clarity, LinkedIn Insight Tag, Bing Ads
Marketing tools
Microsoft Clarity, LinkedIn Insight Tag
Transparency
basic

Site quality

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

Key observations

  1. Website is professional and business-focused on blockchain consulting and software development.
  2. No privacy or cookie policies found, which is a compliance gap.
  3. No contact emails or phone numbers explicitly found in the HTML content provided.
  4. Use of multiple analytics and marketing scripts indicates moderate user tracking.
  5. No security or incident response policies published on the site.
  6. WHOIS data is transparent and domain age supports legitimacy.
  7. No WAF or blocking detected; content fully accessible.
Technical notes

Notes

The website is built on WordPress CMS with Elementor page builder, leveraging modern web technologies including JavaScript and Font Awesome icons. Hosting and DNS are managed via Cloudflare, providing CDN and security benefits. The site includes multiple analytics and marketing scripts such as Microsoft Clarity, Google Tag Manager, LinkedIn Insight Tag, and Bing Ads, indicating a mature digital marketing infrastructure. Performance is moderate with good mobile optimization and SEO practices evident from meta tags and structured data. Accessibility is basic and could be improved. The technical stack is modern and well-maintained, but the absence of DNSSEC and privacy compliance features are notable technical gaps.
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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