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Security report for metamask.io

Consensys Software Inc · Technology · United States

Partial score · DNS & email only

75/100

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

MetaMask, operated by Consensys Software Inc, is a leading crypto wallet platform with over 100 million users worldwide. It provides a comprehensive suite of services including wallet management, token swaps, staking rewards, NFT trading, and developer tools. The platform targets both end-users and blockchain developers, positioning itself as a critical infrastructure player in the Web3 ecosystem. The website reflects a mature digital presence with excellent design, clear navigation, and multi-language support. Technically, it leverages modern frameworks like Next.js and React, hosted on Cloudflare, ensuring fast performance and mobile optimization. Security posture is strong with HTTPS enforcement, security headers, and client transfer protection on the domain, though DNSSEC is not enabled. Privacy compliance is well addressed with comprehensive policies and consent mechanisms. Overall, MetaMask demonstrates a high level of professionalism, trustworthiness, and technical sophistication.

Scanned

This is an earlier scan of metamask.io. View the latest report

NIS2 and GDPR posture

GDPR outside view
58/ 100 · Medium
Checks completed
6of 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. 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

    • 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

  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 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

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Keep watching metamask.io

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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
75
Email security
72
DNS health
80
Network security
100
GDPR outside view
58
Average
77
After the cap
75

Not counted

  • Security headers: did not complete in this scan.
  • 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

MetaMask benefits from its parent company Consensys, a major blockchain software firm, enhancing its market credibility. The business model revolves around providing free wallet software while monetizing through integrated services like swaps, staking, and card payments. Its competitive advantage lies in its large user base, extensive developer ecosystem, and continuous security enhancements. The company actively engages users via educational content and community channels, supporting sustained growth. Partnerships with major browser stores and social media platforms amplify its reach. The presence of dedicated developer portals and SDKs indicates a strategic focus on ecosystem expansion and developer adoption.

Security posture

MetaMask exhibits a mature security posture with enforced HTTPS, multiple security headers, and domain transfer protections. The platform integrates security features such as wallet guard and frontrun protection, supported by frequent security audits. However, the absence of DNSSEC and a public security.txt file are minor gaps. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. Incident response contact details are not explicitly published, which could be improved for transparency. Overall, the security measures align well with industry best practices for a high-profile crypto service.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  2. Publish a security.txt file to facilitate responsible vulnerability disclosure and improve transparency.
  3. Provide explicit incident response and abuse contact channels on the website.
  4. Consider publishing recognized security certifications or compliance attestations to boost trust.
  5. Enhance visibility of data protection officer contact information to strengthen GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Consensys Software Inc
Description
Set up your crypto wallet and access all of Web3 and enjoy total control over your data, assets, and digital self. The go-to web3 wallet for 100+ million users.
Key services
Crypto wallet, Token swaps, Staking rewards, NFT collection and trading, Developer SDK and web3 services
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, CSS, HubSpot Forms, Contentful CMS
Frameworks
Next.js
Platforms
Web, Mobile (iOS and Android apps)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Security alerts and wallet guard features
  • No exposed sensitive data detected
  • Use of security headers

Analytics and tracking

Services
Google Analytics, LinkedIn Analytics, HubSpot Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Reddit Ads, Twitter Ads
Tracking pixels
LinkedIn Insight Tag
Marketing tools
HubSpot Forms, Osano CMP
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Strong brand presence with consistent messaging.
  3. Comprehensive navigation with clear segmentation for consumers and developers.
  4. Multiple language support and accessibility features implemented.
  5. Use of modern web technologies and CMS for content management.
  6. Security best practices largely followed, with room for DNSSEC and security.txt improvements.
  7. Active social media presence and marketing integrations.
  8. No signs of malicious or suspicious content.
Technical notes

Notes

The website is built on a modern technology stack including React and Next.js, ensuring server-side rendering and fast load times. Contentful CMS is used for content management, enabling dynamic and multilingual content delivery. Hosting via Cloudflare provides robust CDN and security features. The site is mobile-optimized with responsive design and accessibility features. SEO is well implemented with comprehensive meta tags, Open Graph, and Twitter cards. Integration of marketing and analytics tools like HubSpot, Google Tag Manager, and Osano CMP supports user engagement and compliance. No technical debt or deprecated libraries were detected, indicating good maintenance and modernization.
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. 78/100 −3Low25 findingsView report
  2. 81/100Low22 findingsView report
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