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Security report for joinmatrix.org

Private by Design, LLC · Technology · United States

Medium risk. 8 critical or high findings in Email security, Security headers and 1 other check.

Security score

63/100

Risk levelMedium

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

Join Matrix is a small US-based technology company operating a federated, open-source chat platform focused on privacy, decentralization, and user control. The website presents a clear value proposition targeting users dissatisfied with centralized chat services, offering end-to-end encryption and interoperability via bridges. Technically, the site is built with Jekyll, uses HTTPS, and includes minimal tracking via GoatCounter, reflecting a moderate level of digital maturity. However, the site lacks formal privacy, cookie, and terms of service policies, and does not provide contact information or security documentation, which limits trust and compliance assurance. Security posture is basic with no DNSSEC and missing security headers, though domain registration is consistent and legitimate. Overall, the site is professional and content-rich but would benefit from enhanced security and compliance transparency.

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

8 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  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 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';…

  3. 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

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

Keep watching joinmatrix.org

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

Email alerts on material changes and an exportable JSON history of every change.

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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
95
Security headers
15
Email security
40
DNS health
80
Network security
100
GDPR outside view
50
Average
63

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

The company positions itself as an alternative to major centralized chat platforms, leveraging open-source and federated technology to appeal to privacy-conscious users. Its business model appears community-driven without direct monetization visible on the site. The target audience includes individuals and communities seeking decentralized communication tools. The company maintains consistent branding and transparency in domain registration but lacks formal certifications or security policies. The ecosystem includes bridges to other platforms and a Mastodon social presence, indicating engagement with privacy-focused communities.

Security posture

The website enforces HTTPS but lacks advanced security headers such as Content-Security-Policy or X-Frame-Options, which are recommended to mitigate common web attacks. DNSSEC is not enabled, representing a minor DNS security gap. No incident response or vulnerability disclosure policies are published, and no contact channels for security issues are provided. The absence of privacy and cookie policies indicates potential compliance gaps with GDPR and other privacy regulations. Overall, the security posture is basic and could be improved by implementing standard web security headers, enabling DNSSEC, and publishing formal security and privacy documentation.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and integrity.
  2. Implement standard security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish comprehensive privacy and cookie policies with GDPR compliance details.
  4. Add clear contact information including security incident response contacts.
  5. Consider adding a vulnerability disclosure policy or security.txt file to improve transparency and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Private by Design, LLC
Description
Join Matrix is a federated chat platform that emphasizes user privacy, data control, and open communication. It offers end-to-end encryption, the ability to run or join homeservers, and bridges to other chat platforms. The platform is open source and decentralized, targeting users dissatisfied with centralized chat services.
Key services
Federated chat platform, End-to-end encrypted messaging, Homeserver hosting or joining, Bridges to other chat platforms
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript
Frameworks
Jekyll
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
55/100
Good practices seen
  • HTTPS enabled

Analytics and tracking

Services
GoatCounter
Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges
  2. No privacy, cookie, or terms of service policies found on the site
  3. No contact emails or phone numbers explicitly provided
  4. Site uses HTTPS but lacks advanced security headers
  5. Content is focused on privacy and decentralized chat but lacks formal security or compliance documentation
  6. Uses Jekyll static site generator and minimal external scripts
  7. Includes minimal tracking via GoatCounter with no aggressive tracking detected
  8. No forms or data collection fields present on the homepage
  9. Social media link to Mastodon instance found
Technical notes

Notes

The website uses a static site generator (Jekyll) with modern HTML5, CSS3, and JavaScript. It loads external fonts and minimal JavaScript, contributing to moderate performance. The site is mobile-optimized with responsive design and includes SEO best practices such as meta tags and Open Graph data. No CMS or complex backend detected, reducing attack surface but limiting dynamic capabilities. The hosting provider is not explicitly identified. The site could improve accessibility features and implement additional performance optimizations.
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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