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Security report for matter-labs.io

Matter Labs · Technology · N/a

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

Matter Labs is a technology company specializing in scaling Ethereum blockchain using zero-knowledge proofs, notably through their zkSync project. The company positions itself as an innovator in blockchain scalability, targeting developers and the crypto community. Their website reflects a modern technical infrastructure built on Nuxt.js and leverages Google Tag Manager for analytics. Hosting and DNS services are provided by Cloudflare, ensuring good performance and security at the network level. Security posture is moderate with HTTPS enabled and domain transfer protection, but lacks advanced security headers and published security policies. Privacy compliance is weak due to absence of privacy and cookie policies. Overall, the website is professional and trustworthy but could improve transparency and security practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

7 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 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 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 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

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

Keep watching matter-labs.io

This scan found 23 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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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
77
Security headers
30
Email security
80
DNS health
80
Network security
100
GDPR outside view
35
Average
67

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

Matter Labs operates in the blockchain technology sector with a focus on Ethereum scaling solutions. Their business model revolves around developing and promoting zkSync, a zero-knowledge proof based scaling technology. The company targets blockchain developers and crypto users aiming for mainstream adoption of public blockchains. The domain age and registration details align with the company's founding timeline, supporting legitimacy. The company maintains a consistent brand presence and uses modern web technologies. However, lack of explicit contact information and privacy policies may limit user trust and regulatory compliance. No clear partnerships or subsidiaries were identified from the website content.

Security posture

The website demonstrates a baseline security posture with HTTPS enforced and domain transfer protection enabled. However, the absence of DNSSEC and security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security reduces defense-in-depth. No vulnerability disclosure or incident response information is published, which could hinder timely security communication. The use of Google Tag Manager introduces moderate user tracking, but privacy compliance is insufficient due to missing policies and consent mechanisms. Overall, the security maturity is moderate but requires enhancements to meet best practices and regulatory expectations.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with GDPR compliance and consent mechanisms.
  2. Enable DNSSEC on the domain to enhance DNS security.
  3. Add security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Publish a security policy and incident response contact information, including a security.txt file.
  5. Provide clear contact information including company emails and phone numbers to improve transparency and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Matter Labs
Description
We are scaling Ethereum with zero-knowledge proofs. This is a key technology to enable mainstream adoption of crypto (i.e. public blockchains). Our mission is to accelerate this inevitable outcome of the ongoing digital revolution.
Key services
Ethereum scaling with zero-knowledge proofs, zkSync development
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Nuxt.js, Google Fonts, Google Tag Manager, Font Awesome
Frameworks
Nuxt.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enabled
  • Domain status clientTransferProhibited

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed with clear focus on blockchain technology.
  2. No explicit privacy, cookie, or terms of service policies found on main page.
  3. No contact emails or phone numbers explicitly provided in the HTML content.
  4. Uses modern JavaScript framework Nuxt.js and Google Tag Manager for analytics.
  5. Domain is privacy protected but registered with a reputable registrar and has a reasonable age.
  6. No security.txt or vulnerability disclosure information found.
  7. No security headers detected in provided data; DNSSEC not enabled.
  8. No WAF or blocking mechanisms detected; content fully accessible.
Technical notes

Notes

The website is built using Nuxt.js, a modern Vue.js framework, indicating a contemporary and maintainable codebase. It uses Google Fonts and Font Awesome for typography and icons, and Google Tag Manager for analytics. Hosting and DNS are managed via Cloudflare, providing CDN and DDoS protection benefits. Performance is moderate with preloading of scripts and responsive design evident. Accessibility features are basic but present. SEO is supported by appropriate meta tags and Open Graph data. However, the lack of CMS or structured data beyond Open Graph limits content management flexibility and discoverability. Technical debt appears low, but security and privacy technical implementations need improvement.
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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