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Security report for celo.org

A Protocol Inc · Technology · United States

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

Security score

73/100

Risk levelMedium

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

Celo.org represents a mature blockchain platform focused on Ethereum Layer 2 scaling solutions aimed at enabling a thriving digital economy accessible to all. The platform targets developers and community members, providing tools, resources, and engagement channels to foster ecosystem growth. The website reflects a professional and modern digital presence with excellent design, navigation, and mobile optimization. The technical infrastructure leverages Next.js and React frameworks, hosted with Cloudflare DNS services, ensuring fast performance and reliability. Security posture is strong with HTTPS enforcement, domain transfer protections, and cookie consent mechanisms, although explicit security policies and incident response contacts are absent. Overall, the domain registration data is consistent and transparent, supporting the legitimacy of the business. Strategic recommendations include enabling DNSSEC, publishing security and vulnerability disclosure policies, and providing clearer contact information for security incidents.

Scanned

This is an earlier scan of celo.org. View the latest report

NIS2 and GDPR posture

GDPR outside view
70/ 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

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 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

    • 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

  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 celo.org

This scan found 19 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

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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
65
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
70
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

Technical appendix

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

Business context

Business profile

Celo.org operates in the blockchain technology and finance sectors, positioning itself as a leading Ethereum Layer 2 solution provider. The business model revolves around providing scalable blockchain infrastructure and developer tools to enable real-world applications and digital economy growth. The company, A Protocol Inc, founded in 2011, has established a strong community presence through forums and chat platforms. The absence of explicit terms of service and contact details for business inquiries suggests areas for improvement in transparency. The platform's ecosystem partnerships and developer focus indicate a growth-oriented strategy with a clear target audience of blockchain developers and digital economy participants.

Security posture

The website demonstrates a good security maturity level with HTTPS enabled, domain status protections, and cookie consent mechanisms aligned with GDPR compliance. However, the lack of published security policies, incident response contacts, and vulnerability disclosure mechanisms indicates gaps in security governance and transparency. No vulnerabilities or exposed sensitive data were detected in the analysis. The security headers present contribute positively to the security posture. To enhance security readiness, the organization should consider publishing a security policy, providing dedicated security contact channels, and enabling DNSSEC to protect against DNS spoofing.

Recommendations

  1. Enable DNSSEC to improve DNS security and prevent spoofing attacks.
  2. Publish a comprehensive security policy and incident response contact information on the website.
  3. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Add explicit terms of service to clarify legal and operational terms for users.
  5. Enhance contact information availability, including business and security contacts, to improve transparency and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
A Protocol Inc
Description
Celo is an Ethereum L2, scaling real-world solutions & leading a thriving new digital economy for all.
Key services
Ethereum Layer 2 scaling, Developer tools and resources, Community engagement
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Cloudflare DNS, Squarespace Domains registrar
Frameworks
Next.js
Platforms
Ethereum blockchain
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Domain status clientDeleteProhibited and clientTransferProhibited
  • Cookie consent mechanism

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Strong focus on developer engagement and community building.
  3. Good use of modern web technologies and frameworks.
  4. Privacy and cookie policies are present and GDPR compliant.
  5. Lack of explicit terms of service and security incident contacts.
  6. No visible advertising or tracking services detected.
  7. WHOIS data is transparent and consistent with business claims.
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, ensuring a responsive and performant user experience. Hosting and DNS services are provided by Cloudflare, contributing to fast loading times and reliability. The site includes proper meta tags and Open Graph data for SEO and social media integration. Accessibility and mobile optimization are well implemented. No CMS was detected, indicating a custom or static site approach. The technical stack is robust with no detected outdated or vulnerable libraries. Opportunities exist to further modernize by enabling DNSSEC and expanding security-related content and policies.
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. 72/100Medium28 findingsView report
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