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Security report for 42.rio

42 Rio · Education · Brazil

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

54/100

Risk levelMedium

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

42 Rio is a prominent technology education institution based in Brazil, recognized globally as the 6th most innovative software engineering school. It offers a free, immersive, peer-to-peer learning model focused on developing the next generation of tech professionals in the Rio de Janeiro market. The website reflects a mature digital presence with strong branding, partnerships with major companies, and a clear focus on education and recruitment services. Technically, the site is built on Webflow with modern analytics and marketing tools integrated, providing a good user experience and mobile optimization. Security posture is solid with HTTPS and no exposed sensitive data, though improvements in security headers and explicit consent mechanisms are recommended. The absence of WHOIS data limits domain trust analysis but is likely due to registry restrictions rather than malicious intent. Overall, 42 Rio presents a credible, professional, and trustworthy online presence aligned with its business goals.

Scanned

This is an earlier scan of 42.rio. View the latest report

NIS2 and GDPR posture

GDPR outside view
50/ 100 · Medium
Checks completed
5of 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

7 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 19 issues across 4 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
72
Security headers
15
DNS health
80
GDPR outside view
50
Average
54

Not counted

  • Email security: did not complete in this scan.
  • Network security: did not complete in this scan.
  • 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 within the education and technology sectors, targeting aspiring software engineers primarily in Brazil. Its business model revolves around providing free, high-quality software engineering education and facilitating recruitment for partner companies. The institution leverages a global 42 Network ecosystem, enhancing its market position and credibility. Partnerships with leading companies such as Accenture, Icatu, XP Inc, and Magalu strengthen its recruitment pipeline and industry relevance. The website content and testimonials emphasize social impact and career transformation, appealing to both students and corporate clients. Growth indicators include campus expansion and increasing student enrollment. The strategic use of digital marketing and analytics tools supports ongoing engagement and operational insights.

Security posture

The website demonstrates a good security baseline with enforced HTTPS and no visible sensitive data leaks. However, the lack of security headers such as Content-Security-Policy and Strict-Transport-Security reduces the overall security robustness. No explicit security or incident response policies are published, which could impact trust and compliance. The use of multiple third-party analytics and marketing scripts introduces moderate tracking but appears managed with asynchronous loading. GDPR compliance is partially addressed via privacy and cookie policies, though a clear cookie consent mechanism is missing. The absence of vulnerability disclosure or security.txt files suggests limited transparency in security incident handling. Overall, the security posture is adequate but could benefit from enhanced policies and technical controls.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and Strict-Transport-Security to harden site security.
  2. Add an explicit cookie consent banner/mechanism to improve GDPR compliance and user privacy transparency.
  3. Publish a dedicated security policy and incident response contact information to enhance trust and preparedness.
  4. Consider establishing a vulnerability disclosure program or security.txt file to facilitate responsible reporting.
  5. Regularly review third-party scripts and tracking tools to minimize privacy risks and optimize 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 of trained cadets, Partnerships with companies 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
Platforms
Webflow CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
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 Tag Manager, Hotjar, Visual Website Optimizer
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, LinkedIn Insight Tag
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 fully accessible with rich content and no blocking mechanisms.
  2. No forms detected on the main page; user registration and login handled on apply.42.rio subdomain.
  3. No direct company contact emails or phone numbers found on main site; contact likely via apply.42.rio platform.
  4. Strong branding and consistent messaging aligned with 42 Network global ecosystem.
  5. Multiple social media profiles linked in footer (Instagram, Facebook, LinkedIn, YouTube).
  6. No explicit security or incident response policies published on main site.
  7. Privacy and cookie policies are hosted on apply.42.rio subdomain and appear comprehensive.
  8. Use of multiple third-party analytics and marketing tools with asynchronous loading.
  9. No suspicious or malicious domains linked.
  10. No exposed sensitive data or credentials found in HTML content.
Technical notes

Notes

The website is built on the Webflow platform, utilizing modern web technologies including Google Fonts, Google Tag Manager, Facebook Pixel, LinkedIn Insight Tag, Hotjar, and Visual Website Optimizer. The site loads asynchronously for third-party scripts, aiding performance. Mobile optimization is good, and the site features a clean, professional design with clear navigation. No CMS other than Webflow is detected. Hosting provider details are not explicit but likely Webflow's infrastructure. Performance is moderate with potential for improvement by optimizing third-party script usage. Accessibility features are basic but present. SEO is well addressed with proper meta tags and structured content. Overall, the technical implementation supports the business goals effectively with room for security and privacy enhancements.
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. 65/100Medium32 findingsView report
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