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Security report for drillandskill.com

Education · Czech Republic

High risk. 11 critical or high findings in Network security, Security headers and 3 other checks.

Security score

41/100

Risk levelHigh

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

The website 'Online procvičování DRILL & SKILL' is an educational platform primarily targeting Czech-speaking students and teachers. It offers ready-made and customizable drills across various subjects including math, chemistry, natural sciences, and geography. The platform aims to save schools money on paper and teachers time by providing efficient online practice tools. The market position is niche, focusing on educational institutions in the Czech Republic with a small-scale operation. Technically, the website uses standard web technologies such as HTML5, CSS, JavaScript with jQuery and Shadowbox.js for video content. The site is moderately optimized for performance and mobile use but lacks advanced accessibility and SEO features. There is no detected CMS or hosting provider information. The site is functional with a login form but lacks modern security headers and visible HTTPS confirmation. From a security perspective, the site shows basic security hygiene with POST method login forms but lacks critical security headers like Content-Security-Policy and anti-CSRF protections. No privacy or cookie policies are present, indicating poor privacy compliance. The WHOIS data is missing or unavailable, which raises concerns about domain legitimacy and trustworthiness despite the professional and safe content. Overall, the website is a functional educational tool with moderate technical quality but significant gaps in security, privacy compliance, and domain registration transparency. Strategic improvements in security posture, privacy policies, and domain legitimacy verification are recommended to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 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

11 findings rated critical or high. Fix these first.

  1. 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: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL 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

  2. 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';…

  3. 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

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

Keep watching drillandskill.com

This scan found 29 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

Recommended

€25per month

  • 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
67
Security headers
15
Email security
65
DNS health
65
Network security
0
GDPR outside view
35
Average
41

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

The business operates in the education sector, providing digital learning tools focused on drill and skill exercises for various school subjects. Its competitive advantage lies in cost and time savings for schools and teachers by digitizing practice materials. The business model likely involves subscription or paid access to drills and custom exercise creation. The target customers are primarily Czech educational institutions and students. There is no evidence of partnerships or subsidiaries. The platform's growth potential depends on expanding subject coverage and improving digital maturity. The lack of visible contact information and privacy policies may hinder trust and adoption.

Security posture

The current security maturity is low to moderate. The absence of HTTPS confirmation and security headers exposes the site to potential risks such as man-in-the-middle attacks and clickjacking. The login form lacks anti-CSRF tokens, increasing vulnerability to cross-site request forgery. No incident response or security policy information is available, indicating limited preparedness. Privacy compliance is poor with no GDPR indicators or cookie consent mechanisms. The missing WHOIS data further reduces trust and may indicate registration or ownership issues. Overall, the security posture requires significant enhancement to meet modern standards and regulatory requirements.

Recommendations

  1. Implement and enforce HTTPS with a valid SSL/TLS certificate to secure all communications.
  2. Add essential security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Introduce anti-CSRF tokens in all forms to prevent cross-site request forgery attacks.
  4. Publish comprehensive privacy and cookie policies with GDPR compliance and implement a cookie consent mechanism.
  5. Verify and update WHOIS domain registration information to improve legitimacy and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
Online educational platform offering exercises and drills for subjects such as math, chemistry nomenclature, natural sciences quizzes, vocabulary, blind maps, and more.
Key services
ready-made drills for various subjects, easy creation of custom drills, cost and time savings for schools and teachers, enhanced practice efficiency
Content quality
good
Branding
moderate

Technology

Stack
HTML5, CSS, JavaScript, jQuery, Shadowbox.js
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
40/100
Good practices seen
  • Use of HTTPS assumed but not confirmed from data
  • Login form uses POST method

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF detected.
  2. No privacy, cookie, or terms of service policies found on the site.
  3. No contact emails, phone numbers, or physical addresses found in the HTML content.
  4. Login form present with username and password fields, no visible security tokens.
  5. External link to YouTube video present.
  6. No social media links detected.
  7. No structured data (JSON-LD, Open Graph) metadata found.
  8. Site uses jQuery and Shadowbox.js for UI and video display.
  9. No visible security headers or advanced security measures detected.
  10. Content is educational, safe, and targeted at students and teachers.
Technical notes

Notes

The website uses a simple technology stack with jQuery and Shadowbox.js for UI and multimedia. The HTML and CSS are valid but basic, with limited mobile optimization and accessibility features. No CMS or advanced frameworks are detected, suggesting a custom or lightweight implementation. Performance is moderate but could benefit from optimization. The absence of SEO metadata and structured data limits search engine visibility. Technical debt is low but modernization opportunities exist, especially in security and privacy implementations.
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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