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Security report for tanzen-ulm.de

Tanzschule TenDance · Hospitality · Germany

Medium risk. 4 critical or high findings in Security headers and Network security.

Security score

58/100

Risk levelMedium

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

Tanzschule TenDance is a local dance school based in Ulm, Germany, offering a variety of dance and fitness courses for children, youth, and adults. Their services include Kindertanzen, Jugend- und Schultanzkurse, HipHop, Paartanz, and fitness classes, positioning them as a community-focused hospitality business in the dance education sector. The website is professionally designed using WordPress and Elementor, with good SEO practices and mobile optimization. The presence of structured data and social media integration enhances their digital presence. Technically, the site uses modern technologies including Cookiebot for GDPR-compliant cookie consent and Microsoft Clarity and Google Tag Manager for analytics and tracking. Security posture is adequate with HTTPS enabled and cookie consent implemented, though additional security headers and policies could improve resilience. No privacy policy or terms of service were found, which is a compliance gap. Overall, the website is trustworthy and serves its business purpose well, but could benefit from enhanced privacy and security documentation.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 100 · Low
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

4 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 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';…

  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.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • 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

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

Keep watching tanzen-ulm.de

This scan found 22 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
95
Security headers
15
Email security
70
DNS health
60
Network security
20
GDPR outside view
88
Average
58

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 tanzen-ulm.de, from OffSeq Breach.

No leaked records found

Breach holds no records for tanzen-ulm.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

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 as a small, local dance school targeting families and individuals interested in dance and fitness in Ulm. Their business model revolves around offering structured dance courses and fitness programs. The company leverages social media (Instagram) for marketing and community engagement. The website's use of modern CMS and marketing tools indicates a moderate level of digital maturity. No evidence of parent or subsidiary companies was found. The lack of explicit privacy and security policies suggests room for improvement in compliance and trust-building. The company appears well-positioned in its niche with a clear service offering and local market focus.

Security posture

The website demonstrates a baseline security posture with HTTPS enabled and cookie consent mechanisms in place. However, it lacks explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which are recommended best practices. No vulnerability disclosure or incident response information is provided, limiting transparency in security management. No exposed sensitive data or vulnerable libraries were detected in the HTML content. The use of third-party analytics and tracking services is balanced with consent management, indicating GDPR awareness. Overall, the security posture is moderate but could be strengthened by implementing additional headers, publishing security policies, and providing incident response contacts.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service to improve compliance and user trust.
  2. Implement security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Add a security.txt file to facilitate vulnerability disclosure and incident reporting.
  4. Provide explicit contact information for data protection officer or security incident response.
  5. Regularly audit third-party scripts and tracking tools to ensure minimal privacy impact and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tanzschule TenDance
Description
Die Tanzschule in Ulm! Von Kindertanzen über Jugend- und Schultanzkurse bis hin zu Erwachsenen, gibt es bei TenDance HipHop, Paartanz und Fitnesskurse.
Key services
Kindertanzen, Jugend- und Schultanzkurse, Erwachsenen Tanzkurse, HipHop, Paartanz, Fitnesskurse
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Elementor, FontAwesome, Google Tag Manager, Cookiebot, Microsoft Clarity
Frameworks
Elementor
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • Cookie consent implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Microsoft Clarity, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Clarity
Marketing tools
Cookiebot
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Uses modern WordPress CMS with Elementor builder.
  3. Cookie consent implemented via Cookiebot with detailed consent dialog.
  4. No explicit privacy policy or terms of service found on the homepage or metadata.
  5. Contact phone number provided in structured data but no email address found.
  6. Social media presence on Instagram linked.
  7. No security.txt or vulnerability disclosure information found.
  8. No explicit security policy or incident response contact information found.
  9. Website content is focused on dance school services in Ulm, Germany.
  10. Good SEO and metadata usage including Open Graph and JSON-LD structured data.
Technical notes

Notes

The website is built on WordPress CMS with Elementor page builder, leveraging modern web technologies including FontAwesome for icons and Google Tag Manager for analytics. Cookiebot is used for cookie consent management, ensuring GDPR compliance. Hosting appears to be provided by netcup, inferred from nameservers. The site is mobile optimized and uses structured data (JSON-LD) for SEO and social media integration. Performance is moderate, with asynchronous loading of scripts to improve speed. Accessibility features are basic but present. There is an opportunity to enhance security headers and implement more robust privacy and security documentation to reduce technical risks.
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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