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Security report for clarity.camp

Stacks Foundation · Technology · N/a

Medium risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

74/100

Risk levelMedium

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

The website learn.stacks.org/course/clarity-camp is an educational platform operated by the Stacks Foundation, offering a 6-week cohort-based course focused on teaching smart contract fundamentals using Clarity, the native smart contract language for the Stacks blockchain on Bitcoin. The platform targets developers and blockchain enthusiasts seeking to gain practical skills in blockchain development, positioning itself as a niche educational provider within the blockchain technology sector. The business model is centered around free educational offerings, supported by the Stacks Open Internet Foundation, a nonprofit entity. Technically, the site is built on the LearnWorlds LMS platform, utilizing modern web technologies such as jQuery and Google Fonts, and is hosted on LearnWorlds infrastructure, providing moderate performance and good mobile optimization. Security-wise, the site enforces HTTPS, includes CSRF tokens, and avoids exposing sensitive data, though it lacks some advanced security headers and a cookie consent mechanism. Privacy compliance is supported by comprehensive privacy and terms of use pages, with GDPR considerations evident but not fully implemented in cookie consent. Overall, the site demonstrates a high level of professionalism and trustworthiness, with clear branding and relevant content, though WHOIS data is unavailable, likely due to privacy protection. Strategic recommendations include enhancing security headers, implementing cookie consent for GDPR compliance, and publishing explicit security and incident response policies.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

3 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 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

  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

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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
45
Email security
85
DNS health
80
Network security
100
GDPR outside view
68
Average
74

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 Stacks Foundation operates this educational site as part of its mission to promote blockchain technology adoption, specifically focusing on smart contracts on Bitcoin via the Clarity language. The foundation leverages partnerships with the broader Stacks ecosystem, including stacks.co and clarity-lang.org, to provide authoritative content. The free cohort model suggests funding through grants or donations typical of nonprofit organizations. The target audience includes developers and blockchain learners, indicating a focus on community growth and ecosystem development rather than direct revenue generation. The presence of a bug bounty program link indicates a commitment to security and community trust. The site’s market position is specialized, serving a growing niche in blockchain education. The absence of phone or physical contact details aligns with a primarily digital and community-driven engagement model.

Security posture

The website exhibits a mature security posture with mandatory HTTPS, CSRF protection, and no visible exposure of sensitive information. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options represents an area for improvement to mitigate risks like clickjacking and cross-site scripting. The lack of a cookie consent mechanism may expose the organization to GDPR compliance risks. No vulnerabilities or outdated libraries were detected in the provided content. Incident response and security policy documentation are not publicly available, which could hinder rapid response and transparency in case of security incidents. Overall, the site is secure for its purpose but would benefit from enhanced security controls and compliance measures.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Add a cookie consent banner and mechanism to ensure GDPR compliance and user privacy transparency.
  3. Publish detailed security policy and incident response documentation accessible to users and stakeholders.
  4. Regularly audit third-party libraries and platform components for vulnerabilities and update accordingly.
  5. Enhance contact information availability, including security contact channels, to improve trust and incident reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Stacks Foundation
Description
Clarity Camp is a 6-week guided cohort where you'll learn smart contract fundamentals and the skills you need to work with Clarity, the native smart contract language of the Stacks blockchain that enables smart contracts on Bitcoin
Key services
Smart contract education, Blockchain development training
Content quality
good
Branding
consistent

Technology

Stack
LearnWorlds LMS platform, jQuery, Uppy file uploader, WebFont Loader
Platforms
LearnWorlds
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSRF token present in meta tags
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Marketing tools
LearnWorlds built-in marketing features
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges
  2. Content is focused on blockchain education and smart contract development
  3. No signs of malicious or suspicious activity
  4. WHOIS data unavailable, likely due to privacy protection or query error
  5. Site uses LearnWorlds platform for course delivery
  6. Contact email is a valid organizational email related to clarity-lang.org
  7. Privacy and terms pages are linked and appear comprehensive
  8. No phone numbers or physical addresses explicitly provided
  9. No cookie consent banner detected despite GDPR relevance
Technical notes

Notes

The website is built on the LearnWorlds LMS platform, leveraging modern web technologies such as jQuery and Google Fonts for typography. The infrastructure appears stable with moderate performance and good mobile responsiveness. The site uses CDN-hosted assets for stylesheets and scripts, improving load times. However, accessibility features are basic and could be improved to meet higher standards. SEO optimization is good with proper meta tags and Open Graph data. The site lacks advanced frameworks or custom backend technologies visible from the front-end content. Technical debt appears low, but opportunities exist to modernize security practices and enhance privacy compliance mechanisms.
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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