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Security report for astra-praha.cz

Taneční škola ASTRA Praha · Other · Czech Republic

High risk. 11 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

40/100

Risk levelHigh

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

Taneční škola ASTRA Praha is a local dance school offering a wide range of dance courses and events targeting adults, youth, and children in Prague and surrounding areas. Their services include standard and Latin dance courses, competitive dance, summer dance schools, seminars, dance clubs, wedding dance lessons, and dance performances. The website is professionally designed with clear navigation and good content quality, supporting multiple dance-related offerings and event announcements. Technically, the website employs common web technologies including Google Analytics, Google Tag Manager, and Plausible Analytics for tracking, along with Google Fonts for typography. The site is mobile-optimized and uses HTTPS, though no explicit security headers were detected. The site lacks a cookie consent mechanism despite having a GDPR-compliant privacy policy, indicating partial privacy compliance. From a security perspective, the site shows no immediate vulnerabilities or exposed sensitive data. However, the absence of WHOIS data limits domain trust assessment, and no incident response or security policy information is provided. The site does not appear to be behind a WAF or security challenge, and content is fully accessible. Overall, the security posture is moderate but could be improved with better header configurations and privacy mechanisms. The overall risk is low given the nature of the business and content, but the lack of WHOIS transparency and cookie consent are notable gaps. Strategic recommendations include implementing security headers, adding cookie consent, publishing incident response contacts, and enhancing accessibility features to improve trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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. 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

    • 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

  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';…

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

Keep watching astra-praha.cz

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

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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
52
Security headers
20
Email security
55
DNS health
80
Network security
20
GDPR outside view
10
Average
40

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

ASTRA Praha operates as a small, specialized dance school focused on the Prague region, serving a diverse audience from children to adults interested in dance education and social dance events. Their business model revolves around course fees, event participation, and specialized dance services such as wedding dance lessons and competitive dance training. The school maintains an active online presence with event updates and galleries, supported by social media links primarily on Facebook. The use of multiple analytics platforms suggests an interest in tracking user engagement and marketing effectiveness. No parent or subsidiary companies were identified, indicating an independent operation. The school’s market position is that of a well-established local provider with a comprehensive offering in the dance education sector.

Security posture

The website demonstrates a basic to moderate security posture. HTTPS is enforced, ensuring encrypted communication. However, the absence of security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces protection against common web attacks. No security.txt or incident response contacts are published, limiting transparency in vulnerability reporting. The site does not expose sensitive data or use vulnerable libraries visibly. Privacy compliance is partial, with a GDPR policy present but no cookie consent mechanism implemented. The use of third-party analytics introduces moderate tracking but no overt privacy risks were detected. Overall, the site is secure enough for its business type but would benefit from enhanced security controls and privacy features.

Recommendations

  1. Implement HTTP security headers including CSP, HSTS, and X-Frame-Options to strengthen defense against web attacks.
  2. Add a cookie consent banner/mechanism to comply fully with GDPR and enhance user privacy transparency.
  3. Publish a security policy and incident response contact information to improve trust and facilitate vulnerability reporting.
  4. Regularly audit and update third-party scripts and analytics tools to mitigate potential vulnerabilities.
  5. Enhance website accessibility features to improve user experience for all visitors, including those with disabilities.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Taneční škola ASTRA Praha
Description
Taneční škola ASTRA Praha offers dance courses for adults, youth, children, and juniors, including competitive dance, summer dance school, seminars, dance clubs, wedding dance, and dance performances.
Key services
Taneční kurzy dospělí, Taneční kurzy mládež, Tanec děti a junioři, Taneční klub dospělí, Soutěžní tanec, Letní škola tance, Taneční semináře, Plesy a tančírny, Individuální lekce, Svatební tanec
Content quality
good
Branding
consistent

Technology

Stack
Google Analytics, Google Tag Manager, Plausible Analytics, JavaScript, CSS, HTML5, Google Fonts
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS usage (implied by https URL)
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Plausible Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
Plausible Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content about dance courses and events.
  2. No WHOIS data available, which limits domain trust assessment.
  3. Privacy policy and terms are present and GDPR compliant.
  4. No cookie consent mechanism detected despite GDPR policy presence.
  5. Contact information is clearly provided with phone and email.
  6. No security.txt or incident response contacts found.
  7. No explicit security headers detected in HTML content.
  8. Use of multiple analytics tools including Google Analytics and Plausible.
  9. No adult or questionable content detected.
  10. Website design and navigation are professional and user-friendly.
Technical notes

Notes

The website uses standard web technologies including HTML5, CSS, and JavaScript, with external dependencies on Google Fonts and multiple analytics platforms (Google Analytics, Google Tag Manager, Plausible). The site is mobile responsive and well-structured with clear navigation menus and event listings. No CMS or hosting provider information is explicitly detected. Performance appears moderate with asynchronous loading of analytics scripts. The site lacks advanced frameworks or CMS indicators, suggesting a custom or lightweight implementation. SEO is supported by meta tags and structured navigation. Technical risks include missing security headers and lack of cookie consent, which could impact compliance and security posture.
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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