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Security report for codelex.io

Kaggle · Education · N/a

Low risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

77/100

Risk levelLow

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

Kaggle is a prominent online platform owned by Google LLC that offers free, practical data science courses aimed at learners ranging from beginners to professionals. The platform is well-positioned in the education sector, providing a rich ecosystem of tutorials, competitions, and community guides that foster skill development in data science and machine learning. The website demonstrates a mature technical infrastructure leveraging modern web technologies such as React and Material UI, hosted on Google Cloud, ensuring fast performance and excellent mobile optimization. Security posture is strong with HTTPS enforced and use of nonce attributes in scripts, although explicit security headers are not visible in the provided HTML. Privacy and cookie policies are comprehensive and GDPR compliant, with active consent mechanisms. However, the absence of visible contact information and security policy pages suggests areas for improvement in transparency and incident response readiness. Overall, the website is highly professional, trustworthy, and safe for general audiences.

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

4 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 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 Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Google APIs, Google Ads

      What to do: Document all third-party data sharing in your privacy policy

  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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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Keep watching codelex.io

This scan found 17 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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  • 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
72
Security headers
80
Email security
75
DNS health
85
Network security
100
GDPR outside view
50
Average
77

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

Kaggle operates as a free educational platform within the data science and machine learning domain, targeting individuals seeking to acquire or enhance practical data skills. Its business model revolves around providing no-cost courses with optional certificates, community engagement, and integration with Kaggle's broader ecosystem of competitions and datasets. The platform benefits from Google's backing, which enhances its market credibility and technical capabilities. Kaggle's competitive advantage lies in its comprehensive, hands-on learning approach and strong community presence. The absence of direct contact details on the site is typical for large platforms relying on centralized support channels. The partnership ecosystem is primarily internal within Google services, with no external partners explicitly linked on the site.

Security posture

The website exhibits a strong security posture with enforced HTTPS and use of modern web security practices such as script nonces. While explicit security headers like Content-Security-Policy and X-Frame-Options are not visible in the HTML snapshot, it is likely they are implemented at the server level given Google's standards. No vulnerabilities or exposed sensitive data were detected in the content. The lack of a public security policy or incident response contact information is a gap that could impact user trust and incident handling efficiency. Compliance with GDPR is indicated by the presence of privacy and cookie policies with consent mechanisms. Overall, the security maturity is high but could be enhanced by publishing dedicated security documentation and contact channels.

Recommendations

  1. Publish a dedicated security policy and incident response page with clear contact information.
  2. Verify and explicitly implement security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Enhance transparency by providing verified company contact emails and phone numbers for support and security.
  4. Regularly audit third-party libraries and dependencies to ensure no vulnerabilities are introduced.
  5. Maintain and communicate clear data retention and privacy policies to strengthen GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Kaggle
Description
Kaggle provides no-cost practical data science courses designed to quickly build usable skills in Python, machine learning, data visualization, and more. It targets learners aiming to become data scientists or improve their data skills.
Key services
Free data science courses, Interactive coding challenges, Community guides, Competitions and datasets
Content quality
excellent
Branding
consistent

Technology

Stack
React, Google APIs, Google Analytics, Material UI, TensorFlow (mentioned in content)
Frameworks
React, Material UI
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of nonce attributes in scripts
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
Marketing tools
Google Optimize
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich educational content.
  2. No signs of blocking or WAF challenges.
  3. Strong use of Google technologies and analytics.
  4. No direct contact emails or phone numbers found on the page.
  5. WHOIS data unavailable, likely due to privacy or registrar restrictions.
  6. Clear privacy and cookie policies with consent mechanisms.
  7. No security or incident response contact information publicly visible.
  8. No vulnerability disclosure or security.txt found.
Technical notes

Notes

The website is built on a modern technology stack including React and Material UI, with integration of Google APIs and analytics services. Hosting is inferred to be on Google Cloud, providing robust infrastructure and fast performance. The site is well-optimized for mobile devices and accessibility, with good SEO practices evident from meta tags and structured content. The use of nonce attributes in scripts enhances security against cross-site scripting attacks. No CMS is explicitly detected, suggesting a custom or proprietary platform. Overall, the technical implementation supports a high-quality user experience with minimal technical debt visible from the HTML snapshot.
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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