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Security report for 42.rio

42 Rio · Education · Brazil

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

65/100

Risk levelMedium

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

42 Rio is a free, immersive software engineering school positioned as the 3rd most innovative technology school globally, according to the Wuri ranking. It targets aspiring software engineers and tech companies in Rio de Janeiro, offering high-level education and recruitment services. The website reflects a strong brand presence with reputable partners and sponsors, emphasizing practical, peer-based learning and career readiness. Technically, the site is built on Webflow with modern analytics and tracking tools, delivering a good user experience with mobile optimization and fast loading times. Security posture is solid with HTTPS and no exposed sensitive data, though it lacks explicit security headers and incident response policies. Privacy compliance is partial, with privacy and cookie policies present but no visible consent mechanism. Overall, the site is professional, trustworthy, and well-aligned with its educational mission.

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. 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';…

  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 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 42.rio

This scan found 24 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
62
Security headers
15
Email security
80
DNS health
85
Network security
100
GDPR outside view
50
Average
65

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

42 Rio operates in the education and technology sectors, focusing on software engineering training and talent recruitment. Its business model is based on free education funded by partnerships with leading companies such as Icatu, Vale, and Accenture. The school leverages a global network (42 Network) to enhance its educational ecosystem. Market positioning is strong, supported by international recognition and a growing student base. The company targets students seeking high-quality tech education and companies looking for skilled talent. Growth indicators include campus expansion plans and media coverage. The partnership ecosystem is robust, involving sponsors, clients, and educational collaborators. Strategic observations highlight a focus on innovation, practical learning, and bridging education with employment opportunities.

Security posture

The website demonstrates a mature security posture with enforced HTTPS and no visible exposure of sensitive information. However, it lacks several security best practices such as security headers (CSP, X-Frame-Options) and does not provide public incident response or vulnerability disclosure policies. The presence of multiple third-party tracking scripts without a cookie consent banner indicates partial privacy compliance. No vulnerabilities or malware indicators were detected in the HTML content. The absence of explicit security policies and incident response contacts suggests room for improvement in transparency and readiness. Overall, the security posture is good but could be enhanced by adopting additional headers, formal policies, and user privacy controls.

Recommendations

  1. Implement and publish a comprehensive security policy and incident response plan accessible from the website.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to improve protection against common web attacks.
  3. Introduce a cookie consent mechanism to comply fully with GDPR and enhance user privacy transparency.
  4. Consider publishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting of security issues.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and improve performance.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
42 Rio
Description
Presencial, imersiva, de alto nível e diferente de tudo que você já viu. Formamos a próxima geração de protagonistas no mercado tech carioca.
Key services
Software engineering education, Recruitment services for companies, Corporate partnerships for tech solutions
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow, Google Fonts, Google Tag Manager, Facebook Pixel, LinkedIn Insight Tag, Hotjar, Visual Website Optimizer (VWO), Flowbase Tooltip, jQuery 3.5.1
Frameworks
Webflow CMS
Platforms
YouTube (embedded videos)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager and Facebook Pixel with async loading

Analytics and tracking

Services
Google Analytics (via GTM), Hotjar, Visual Website Optimizer, LinkedIn Insight Tag, Facebook Pixel
Tracking level
extensive
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, LinkedIn Insight Tag, Hotjar, Visual Website Optimizer
Marketing tools
Hotjar, Visual Website Optimizer
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Strong branding and consistent messaging about free, innovative software engineering education.
  3. Multiple reputable partners and sponsors displayed.
  4. No contact emails or phone numbers explicitly listed on the main page; contact primarily via social media and legal pages.
  5. No explicit security or incident response policies found on main site.
  6. Use of multiple third-party tracking and analytics tools without visible cookie consent banner.
  7. No signs of malicious or suspicious content.
Technical notes

Notes

The website is built using Webflow CMS, leveraging modern web technologies including Google Fonts, jQuery, and multiple analytics and marketing tools such as Google Tag Manager, Facebook Pixel, Hotjar, and Visual Website Optimizer. Hosting is via Amazon CloudFront CDN, ensuring good global performance. The site is mobile optimized with responsive design and fast loading times. SEO is well addressed with proper meta tags and structured content. Accessibility is basic but could be improved. The technical infrastructure supports a professional and scalable online presence with opportunities for further modernization by reducing third-party dependencies and enhancing security headers.
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. 54/100Medium27 findingsView report
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