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Security report for master-school.es

Master School · Education · Spain

High risk. 9 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

49/100

Risk levelHigh

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

Master School is a small educational business based in Spain specializing in Business English, Public Speaking, and Translation services. The company targets both individuals and corporate clients seeking to improve their English communication skills through a unique, dynamic, and interactive methodology. The website is professionally designed using WordPress with the Avada theme and integrates modern web technologies including Google Analytics for visitor tracking. The presence of structured data and social media links enhances its digital maturity and market visibility. Security posture is generally good with HTTPS enabled and no visible vulnerabilities, though the absence of security headers and explicit privacy policies suggests room for improvement. The domain WHOIS data is unavailable due to query restrictions, but the domain age aligns with the business founding year, supporting legitimacy. Overall, the website presents a trustworthy and professional front for a niche educational service provider.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 100 · High
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

9 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.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

  2. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: PostgreSQL

      Port 5432 (PostgreSQL) is publicly accessible - PostgreSQL - Database server

      What to do: Immediately restrict access to PostgreSQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  3. 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';…

Need hands-on remediation? Email guard@offseq.com

Keep watching master-school.es

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.

Daily monitoring

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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
35
Email security
80
DNS health
85
Network security
0
GDPR outside view
28
Average
50
After the cap
49

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 · found on this site
  • 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

Master School operates in the education sector focusing on language and communication skills training. Its business model revolves around offering specialized courses for individuals and companies, including exam preparation and public speaking. The company leverages digital marketing and SEO best practices to reach Spanish-speaking markets. The website's integration with social media platforms and use of Google Analytics indicates an active approach to audience engagement and performance monitoring. The lack of visible contact details and privacy documentation may limit trust for some users. There is no evidence of partnerships or subsidiaries from the data provided. The company appears to be in a growth phase, having been founded recently in 2021.

Security posture

The website benefits from HTTPS encryption ensuring secure data transmission. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options reduces its defense-in-depth posture. No forms or input fields were detected in the analyzed content, minimizing immediate risks of injection attacks. The use of up-to-date WordPress and plugins like Yoast SEO is positive, but continuous monitoring for vulnerabilities is recommended. No incident response or security policy information is publicly available, which could be improved to enhance transparency and readiness. Overall, the security posture is adequate for a small educational website but can be strengthened with additional best practices.

Recommendations

  1. Implement comprehensive privacy and cookie policies with clear GDPR compliance and consent mechanisms.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to improve security posture.
  3. Publish contact information for security incidents and designate a Data Protection Officer if applicable.
  4. Regularly update WordPress core, themes, and plugins to mitigate vulnerabilities.
  5. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Master School
Description
Haciendo crecer a empresas y personas con una metodología de Business English única, dinámica e interactiva y cursos de Public Speaking.
Key services
Business English courses for individuals, Business English courses for companies, Exam preparation courses, Public Speaking courses, Translation services
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Avada Theme, jQuery, Google Fonts (Open Sans, Roboto Slab), Font Awesome, Yoast SEO plugin, Google Analytics (gtag.js)
Frameworks
WordPress
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • No visible exposed sensitive data
  • No vulnerable libraries detected in scripts

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
Yoast SEO
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed with clear navigation and structured content.
  2. No WHOIS data available due to query restrictions; domain appears privacy protected.
  3. No explicit privacy or cookie policies found on homepage content.
  4. Google Analytics is used for tracking; no other tracking or advertising networks detected.
  5. No contact emails or phone numbers explicitly found in the provided HTML snippet.
  6. Social media links to Facebook, LinkedIn, Instagram, and YouTube are present in JSON-LD.
  7. No forms detected in the provided HTML snippet.
  8. No security.txt or vulnerability disclosure information found.
  9. SSL is enabled and appears properly configured.
  10. No security headers detected in the provided data; recommend adding them.
Technical notes

Notes

The website is built on WordPress CMS using the Avada theme, a popular and well-supported framework. It uses modern web fonts (Open Sans, Roboto Slab) and Font Awesome icons for UI consistency. Google Analytics is integrated via gtag.js for visitor tracking. The site appears mobile-optimized with responsive design and good navigation clarity. Performance is moderate, likely influenced by the theme and external resources. No hosting provider details were found in the data. Accessibility features are basic but present. SEO is enhanced by Yoast SEO plugin and proper meta tags including Open Graph and Twitter cards. There is no evidence of technical debt or deprecated libraries in the provided content.
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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