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Security report for vueschool.io

Privacy service provided by Withheld for Privacy ehf · Education · Iceland

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

Vue School is a well-established online education platform founded in 2016, specializing in Vue.js and modern front-end technologies. It offers a wide range of video courses, workshops, learning paths, and corporate training services targeting developers and learners seeking to master Vue.js. The platform has a strong market position with over 200,000 students and partnerships with certification and event providers. Technically, the website leverages modern frameworks like Vue.js and Nuxt.js, integrates multiple analytics and marketing tools, and uses Cloudflare for DNS and CDN services, resulting in a fast and mobile-optimized user experience. Security posture is good with HTTPS and reCAPTCHA usage, though improvements are needed in security headers and published policies. Privacy compliance is weak due to missing privacy and cookie policies. Overall, the platform is professional, trustworthy, and content-rich, but should enhance privacy transparency and security best practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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 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 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 vueschool.io

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.

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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
75
Security headers
50
Email security
85
DNS health
75
Network security
100
GDPR outside view
53
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

Vue School operates on a subscription-based business model offering premium and free educational content focused on Vue.js. Its target audience includes individual developers, teams, and enterprises seeking to upskill in Vue.js and related technologies. The company benefits from a mature domain and privacy-protected WHOIS registration, indicating a legitimate and stable business. Partnerships with Nuxt, certification providers, and event organizers expand its ecosystem and market reach. The platform's revenue streams likely include monthly, quarterly, yearly, and lifetime subscription plans, corporate training, and affiliate programs. The presence of testimonials and a large student base serve as strong trust signals. The company is positioned as a leading Vue.js education provider with consistent branding and excellent content quality.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and use of Google reCAPTCHA to protect forms. However, the absence of security headers such as Content-Security-Policy and X-Frame-Options reduces defense-in-depth. No explicit security or incident response policies are published, and no security.txt or vulnerability disclosure program is evident. The domain uses privacy protection, which is justified but limits transparency. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The extensive use of third-party analytics and marketing scripts increases the attack surface and privacy risks. Overall, the security posture is adequate for an educational platform but could be improved by publishing policies, enabling DNSSEC, and implementing security headers.

Recommendations

  1. Publish comprehensive privacy and cookie policies with GDPR compliance details and implement a cookie consent mechanism.
  2. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  3. Implement security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen browser security.
  4. Create and publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  5. Provide clear and accessible contact information for security incidents and general inquiries to improve transparency and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Privacy service provided by Withheld for Privacy ehf
Description
Basic to advanced Vue.js training from core team members & industry experts. In-depth lessons with weekly updates on Pinia, Typescript, Vue Use, Laravel, & more
Key services
Vue.js video courses, Workshops, Learning paths, Corporate training, Developer toolkit, Certification preparation
Content quality
excellent
Branding
consistent

Technology

Stack
Vue.js, Nuxt.js, Stripe, PayPal, Google Analytics, Google Tag Manager, Facebook Pixel, LinkedIn Insight Tag, OneSignal, Kissmetrics, Hotjar (commented out), Cloudflare DNS
Frameworks
Vue.js, Nuxt.js
Platforms
Cloudflare, AWS Cloudfront (cdn)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • Use of Google reCAPTCHA
  • Use of OneSignal for push notifications with external user ID handling
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Kissmetrics, Microsoft Clarity
Tracking level
extensive
Privacy practices
poor

Advertising

Tracking pixels
Facebook Pixel, LinkedIn Insight Tag, Kissmetrics, Microsoft Clarity, Twitter Ads
Marketing tools
Drip, ConvertBox, OneSignal
Transparency
basic

Site quality

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

Key observations

  1. Website is a professional online education platform specializing in Vue.js and related technologies.
  2. Content is rich with many courses, lessons, cheat sheets, and events.
  3. No explicit privacy or cookie policies found in the provided content.
  4. Extensive use of third-party analytics and marketing tools.
  5. No direct contact emails or phone numbers found in the HTML content.
  6. Domain is privacy protected but well aged and consistent with business claims.
  7. No security.txt or vulnerability disclosure found.
  8. No signs of adult or questionable content.
  9. Good technical implementation with modern frameworks and CDN usage.
Technical notes

Notes

The website is built using modern JavaScript frameworks Vue.js and Nuxt.js, ensuring a reactive and performant user interface. It integrates multiple third-party services for analytics (Google Analytics, Kissmetrics, Microsoft Clarity), marketing (Drip, ConvertBox), push notifications (OneSignal), and payment processing (Stripe, PayPal). Hosting and DNS are managed via Cloudflare, providing CDN and security benefits. The site is mobile-optimized with responsive design and uses Google Fonts for typography. Performance is fast with asynchronous loading of scripts and optimized assets. However, the lack of CMS detection suggests a custom or headless setup. Technical debt appears low, but improvements in security headers and privacy compliance are needed to reduce risks and enhance user trust.
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. 73/100Medium25 findingsView report
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