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Security report for nethermind.io

Nethermind · Technology · N/a

Medium risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

73/100

Risk levelMedium

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

Nethermind is a blockchain technology company specializing in providing enterprise-grade blockchain infrastructure, research, and security services. Founded in 2017, it has established itself as a trusted partner in the Ethereum and Starknet ecosystems, offering solutions such as blockchain-as-a-service, core engineering, cryptography research, smart contract audits, and AI infrastructure. The company targets enterprises, developers, financial institutions, and governments seeking to build and scale decentralized systems with security and compliance in mind. Technically, the website is built on Webflow CMS with modern web technologies and integrates Matomo analytics for privacy-conscious tracking. The site is well-optimized for mobile and desktop, with clear navigation and professional design. Security posture is strong with HTTPS, security headers, and secure form handling, though explicit privacy and cookie policies are not found in the provided content. WHOIS data is unavailable or protected, which is common in this sector but slightly reduces transparency. Overall, Nethermind demonstrates a mature digital presence aligned with its business focus and market position.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

4 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

    • High

      Third-party services without privacy policy

      Detected services: Twitter, LinkedIn, YouTube, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

  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 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 nethermind.io

This scan found 21 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.

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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
72
Security headers
60
Email security
75
DNS health
80
Network security
100
GDPR outside view
50
Average
73

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 nethermind.io, from OffSeq Breach.

Total records
6
Employees
0
Customers
4
Third parties
2
Weak passwords
0%

2 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 nethermind.io.

Select it in the checkout above.

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

Nethermind operates in the blockchain technology sector, focusing on enterprise solutions and developer tooling. Its competitive advantage lies in deep technical expertise, Ethereum Foundation backing, and active contributions to blockchain protocol development. The business model centers on B2B services including blockchain infrastructure management, security audits, research, and custom enterprise engineering. Revenue streams likely include service contracts, consulting, and software tooling. The company maintains a broad partnership ecosystem with major blockchain projects and open-source communities. Growth indicators include ongoing product development, new service launches, and a global team presence. Strategic observations highlight the importance of maintaining transparency in domain registration and enhancing privacy compliance documentation to strengthen trust.

Security posture

Nethermind exhibits a strong security posture with enforced HTTPS, comprehensive security headers, and use of reCAPTCHA to protect forms. The website does not expose sensitive data or vulnerable libraries in the HTML content. However, the absence of explicit privacy and cookie policies, vulnerability disclosure, and incident response information represents compliance gaps. There is no evidence of security certifications or a designated data protection officer. The company’s focus on blockchain security and formal verification services indicates a high internal security maturity, but public-facing documentation could be improved to enhance user trust and regulatory compliance. Incident response readiness and communication channels for security issues are not publicly visible, which is a potential area for enhancement.

Recommendations

  1. Publish comprehensive privacy and cookie policies with clear consent mechanisms to improve GDPR compliance and user trust.
  2. Add a dedicated vulnerability disclosure policy and incident response contact information to demonstrate security transparency.
  3. Provide security certifications or attestations on the website to reinforce credibility.
  4. Include contact emails and phone numbers explicitly labeled for support, sales, or security inquiries to facilitate communication.
  5. Consider publishing data protection officer contact details if applicable to enhance compliance and accountability.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Nethermind
Description
Nethermind empowers enterprises and developers worldwide to access and build on decentralized systems. They provide blockchain-as-a-service, blockchain core engineering, research in cryptography, DeFi, protocol design, security services including smart contract audits and formal verification, dApps and enterprise engineering, infrastructure management, biometric identity solutions, and AI agents and infrastructure.
Key services
Blockchain-as-a-Service, Blockchain Core Engineering, Nethermind Research, Nethermind Security, dApps & Enterprise Engineering, Infrastructure Management, Biometric Identity, AI Agents & Infrastructure
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow CMS, Google Fonts, Matomo Analytics, Google reCAPTCHA, JavaScript, CSS, HTML5
Frameworks
Webflow
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of reCAPTCHA for forms
  • No exposed sensitive data in HTML
  • Security-focused content and services

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Matomo
Marketing tools
Matomo Analytics
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 professional design.
  2. Strong focus on blockchain technology, research, and enterprise solutions.
  3. Active community presence with multiple social media and developer tools.
  4. No direct company contact emails or phone numbers found on main pages.
  5. No explicit privacy or cookie policy pages detected in the provided content.
  6. Use of Matomo analytics indicates some privacy-conscious tracking.
  7. No signs of adult or questionable content.
  8. WHOIS data is unavailable or protected, limiting domain trust verification.
Technical notes

Notes

The website is built using Webflow CMS, leveraging modern web standards including HTML5, CSS3, and JavaScript. It integrates Google Fonts for typography and Matomo for analytics, indicating a preference for privacy-friendly tracking solutions. The site uses Google reCAPTCHA to protect forms from abuse. Performance is optimized with responsive design and efficient asset loading. The technical infrastructure supports a professional and scalable web presence. Opportunities exist to improve technical SEO by adding structured data (JSON-LD) for organization and contact information, and to enhance accessibility features further. No critical technical risks or deprecated technologies were detected in the provided content.
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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