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Security report for wasserturm-hotel-cologne.com

Wasserturm Hotel Cologne · Hospitality · Germany

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

73/100

Risk levelMedium

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

Wasserturm Hotel Cologne is a hospitality business offering unique hotel accommodation and bar services located in the heart of Cologne, Germany. The website presents a professional and visually appealing experience targeting travelers and tourists seeking authentic city experiences. The business positions itself as a boutique hotel with panoramic city views, catering to a niche market segment. Technically, the website is built on the Webflow platform, leveraging modern technologies such as Google Tag Manager, Adobe Tag Manager, Mapbox, and Cookiebot for analytics, marketing, and privacy compliance. The site is mobile optimized and demonstrates good SEO practices. Security-wise, the website enforces HTTPS and implements a cookie consent mechanism, but lacks explicit security headers and published security policies. The absence of WHOIS data raises concerns about domain legitimacy, although the website content and branding appear consistent and professional. Overall, the site shows moderate digital maturity with room for improvement in transparency and security documentation.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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 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. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching wasserturm-hotel-cologne.com

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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
47
Security headers
30
Email security
85
DNS health
80
Network security
100
GDPR outside view
95
Average
73

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

The hotel operates in the hospitality sector, focusing on providing accommodation and bar services in Cologne. Its business model revolves around delivering a unique guest experience with a strong emphasis on location and ambiance. The website integrates multiple third-party marketing and analytics tools, indicating an active approach to customer engagement and data-driven marketing. However, the lack of visible contact information and privacy policy pages may impact customer trust and regulatory compliance. The domain's WHOIS inconsistency suggests the need for verification of ownership and registration status. The company appears to be a small-sized entity with no visible parent or subsidiary relationships. Strategic partnerships with marketing and analytics providers are evident, but no direct business partners or subsidiaries are identified from the domain data.

Security posture

The website demonstrates a baseline security posture with HTTPS enabled and a comprehensive cookie consent mechanism that categorizes cookies by purpose and provider. However, the absence of key security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security robustness. No vulnerabilities or exposed sensitive data were detected in the HTML content. The lack of published security policies, incident response contacts, or vulnerability disclosure programs indicates limited transparency and preparedness for security incidents. The missing WHOIS data is a notable risk factor, potentially indicating domain registration issues or privacy protection that is not justified by the business type. Overall, the security posture is moderate but could be significantly improved with enhanced headers, documented policies, and verified domain registration.

Recommendations

  1. Implement and publish a comprehensive privacy policy and terms of service pages to improve transparency and compliance.
  2. Add explicit security headers such as CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  3. Provide clear and accessible contact information including business emails and phone numbers to improve trust and customer support.
  4. Verify domain registration status and ensure WHOIS data is accurate and publicly available to establish legitimacy.
  5. Develop and publish a security policy and incident response plan including contact channels for security issues.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Wasserturm Hotel Cologne
Description
Make authentic discoveries at every turn and explore a unique hotel and bar at the heart of cologne with panoramic view.
Key services
hotel accommodation, bar services, panoramic city views
Content quality
good
Branding
consistent

Technology

Stack
Webflow, Google Tag Manager, Adobe Tag Manager, Mapbox, Swiper, Cookiebot, Quantcast, Cloudflare (implied by cookie _cfuvid)
Platforms
Webflow CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Adobe Analytics, Google Analytics, Quantcast
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Google Ads, Taboola, Quantcast, Sojern, Xandr
Tracking pixels
Cookiebot, Adobe Analytics, LinkedIn Insight Tag, Pinterest Tag
Marketing tools
Adobe Tag Manager, Cookiebot
Transparency
good

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 challenge.
  2. Cookie consent banner is implemented with detailed cookie categories and providers.
  3. No explicit privacy policy or terms of service pages found in the provided content.
  4. No direct contact emails or phone numbers found in the HTML content.
  5. Website uses multiple third-party marketing and analytics services.
  6. WHOIS data is missing or domain appears unregistered, which is unusual for an active commercial website.
  7. Website content and branding are consistent and professional.
  8. No security.txt or vulnerability disclosure information found.
  9. No data protection officer contact information found.
Technical notes

Notes

The website is built using Webflow CMS, integrating modern JavaScript libraries and services such as Mapbox for mapping, Swiper for UI components, and multiple tag managers for analytics and marketing. The site loads asynchronously many scripts from trusted domains, indicating a modular and performance-conscious design. Mobile optimization is good, with responsive CSS and media queries. Accessibility features are basic but present. SEO is supported by proper meta tags and alternate language links. Hosting appears to be behind Cloudflare or similar CDN services, enhancing availability and performance. However, the site lacks some security headers and explicit server-side security configurations visible in the HTML content. Overall, the technical infrastructure is modern and adequate for a small hospitality business but could benefit from enhanced security and privacy features.
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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