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Security report for tanecnidarky.cz

Centrum tance s.r.o. · Other · Czech Republic

High risk. 9 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

48/100

Risk levelHigh

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

Centrum tance s.r.o. operates the website TanecniDarky.cz, offering e-commerce sales of gift vouchers redeemable for a variety of dance and fitness classes. The business targets individuals seeking unique gifts for friends and family interested in physical activities such as salsa, zumba, ballet, yoga, and pole dance. The company has a local presence in Prague and Brno with over 25 years of experience, positioning itself as a trusted provider in the dance and fitness sector. Technically, the website uses modern frontend technologies including Bootstrap and jQuery, and integrates Google Analytics and Google Ads for marketing and tracking purposes. The site is mobile responsive and provides a good user experience with clear navigation and professional design. Security posture is moderate; HTTPS is implied but no explicit security headers were detected, and privacy compliance is lacking due to absence of privacy and cookie policies. WHOIS data is unavailable, likely due to privacy protection, which slightly reduces trust but does not contradict the professional presentation of the business. Overall, the website is functional and credible but would benefit from enhanced security and compliance measures.

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

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

    • 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 tanecnidarky.cz

This scan found 25 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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  • 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
20
Email security
70
DNS health
75
Network security
40
GDPR outside view
10
Average
48

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention tanecnidarky.cz, from OffSeq Breach.

Total records
2
Employees
0
Customers
2
Third parties
0
Weak passwords
0%

2 subdomains affected

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Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The company operates in the niche market of dance and fitness gift vouchers, leveraging a long-standing reputation and local presence. Its business model is direct-to-consumer e-commerce, focusing on experiential gifts. The target market includes individuals purchasing gifts for women and fitness enthusiasts. The company benefits from partnerships with Centrum Tance and Allstar Group for operations and website development respectively. Revenue streams are primarily from voucher sales. Growth potential exists through expanding voucher offerings and improving digital marketing. The lack of visible contact emails or phone numbers on the site may limit customer engagement. The company maintains clear legal and registration information, enhancing credibility.

Security posture

The website demonstrates a basic security posture with HTTPS usage and no visible exposed sensitive data. However, the absence of security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces protection against common web attacks. No vulnerability disclosure or incident response information is provided, indicating limited readiness for security incidents. Privacy compliance is weak, with no privacy or cookie policies and no consent mechanisms, which may expose the company to regulatory risks under GDPR. The use of third-party tracking scripts increases privacy risks. Overall, security maturity is moderate but requires improvements to meet best practices and compliance standards.

Recommendations

  1. Implement comprehensive privacy and cookie policies with explicit user consent mechanisms to ensure GDPR compliance.
  2. Add and configure security headers including Content Security Policy, HSTS, X-Frame-Options, and Referrer-Policy to enhance web security.
  3. Publish a security policy and vulnerability disclosure program to improve incident response and transparency.
  4. Provide clear and accessible contact information including company emails and phone numbers to improve customer trust and support.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and optimize performance.

Contact details published on the site

Addresses
Legal name
Centrum tance s.r.o.
Registration number
24259080
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Centrum tance s.r.o.
Description
Centrum Tance offers gift vouchers for dance and fitness classes including salsa, zumba, ballet, step, street dance, yoga, pilates, pole dance, and aerial hoop. The vouchers are valid for 6 months and can be used at multiple locations in Prague and Brno.
Key services
Dance classes, Fitness classes, Gift vouchers
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.5.1 slim, Bootstrap 5.3.2, Google Analytics, Google Ads gtag.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • Use of HTTPS (implied by external scripts loaded over https)
  • No visible exposed sensitive data

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Ad networks
Google Ads
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 gift vouchers for dance and fitness classes.
  2. No privacy or cookie policies found, which is a compliance gap.
  3. WHOIS data is unavailable, indicating privacy protection or domain registration issues.
  4. No contact emails or phone numbers explicitly provided on the page.
  5. External scripts include Google Analytics and Google Ads, indicating user tracking.
  6. No security headers detected in provided data; security posture could be improved.
  7. Website is mobile responsive and uses modern frontend libraries.
  8. Business information is clearly stated in footer with company registration details.
Technical notes

Notes

The website uses a modern frontend stack with Bootstrap 5.3.2 and jQuery 3.5.1 slim, ensuring responsive design and compatibility across devices. Google Analytics and Google Ads scripts are integrated for marketing and user behavior tracking. The site loads CSS and JS resources from reputable CDNs, improving performance and reliability. However, no CMS or backend platform is explicitly detected. Performance is moderate with room for optimization in accessibility and SEO. The absence of security headers and privacy policies indicates technical debt in security and compliance areas. Hosting provider details are not available from the data provided.
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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