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Security report for spa.cz

ONLINE HOLDING s.r.o. · Hospitality · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

63/100

Risk levelMedium

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

Spa.cz is a Czech Republic-based online platform specializing in wellness and spa stay bookings, offering over 3,600 packages to its customers. The company operates under ONLINE HOLDING s.r.o., positioning itself as a leading marketplace in the hospitality sector focused on wellness tourism. The website is professionally designed with good content quality, clear navigation, and mobile optimization, targeting a general audience interested in relaxation and spa services. Technically, the site employs modern marketing and analytics tools such as Google Tag Manager, Microsoft Clarity, and Facebook Pixel, alongside a robust cookie consent mechanism ensuring GDPR compliance. Security-wise, the site enforces HTTPS, implements key security headers, and avoids exposing sensitive data, although it lacks a publicly available security policy or incident response information. Overall, the website demonstrates a mature digital presence with moderate to good performance and a high trustworthiness rating, despite the absence of WHOIS data due to privacy protection.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 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

8 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 spa.cz

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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

€39.90one-time

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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
75
Security headers
20
Email security
65
DNS health
80
Network security
100
GDPR outside view
40
Average
63

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

Spa.cz operates as an essential entity in the hospitality sector, focusing on wellness and spa services in the Czech market. Its business model revolves around an online marketplace facilitating bookings for wellness stays and spa packages. The platform leverages partnerships with various service providers and integrates multiple advertising and retargeting networks to drive traffic and conversions. The company targets a broad demographic interested in wellness tourism, supported by a comprehensive content offering and strong brand consistency. The absence of detailed WHOIS data is typical for commercial websites and does not detract from its market credibility. The platform's use of structured data and SEO best practices further enhances its competitive positioning.

Security posture

The website maintains a good security posture with HTTPS enforced and multiple security headers in place, including Content-Security-Policy and Strict-Transport-Security. It uses reputable third-party analytics and marketing scripts, which are consented to via a cookie banner compliant with GDPR. No vulnerabilities or exposed sensitive information were detected in the HTML content. However, the lack of a published security policy or incident response contact limits transparency in security governance. There is also no evidence of a vulnerability disclosure program or security.txt file, which could improve trust and responsiveness to security issues. Overall, the security maturity is solid but could benefit from enhanced policy disclosures and incident management readiness.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Establish and publicize an incident response contact or page to improve transparency.
  3. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Enhance website accessibility features to meet compliance standards and improve user experience.
  5. Regularly review and audit third-party scripts to mitigate potential security risks.

Contact details published on the site

Addresses
Legal name
ONLINE HOLDING s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ONLINE HOLDING s.r.o.
Description
Nejkratší cesta do wellness a lázní vede přes Spa.cz. Vyberte si z více než 3 600 pobytů ten pravý a nechte se unést za odpočinkem. Zasloužíte si to!
Key services
Wellness stays booking, Spa packages, Gift vouchers
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Microsoft Clarity, OneTrust Cookie Consent, Sentry, Criteo, Facebook Pixel, Bing Ads
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

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

Analytics and tracking

Services
Microsoft Clarity, Google Analytics (via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Bing Ads, Facebook Ads, Criteo
Tracking pixels
Facebook Pixel, Microsoft Clarity
Transparency
good

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 detected
  2. WHOIS data is unavailable, indicating privacy protection or registry issues
  3. Strong use of third-party marketing and analytics tools
  4. Comprehensive cookie consent and privacy policy implementation
  5. No direct contact emails or phone numbers found in the HTML snippet, but contact forms exist
  6. No explicit security policy or incident response information published
  7. Good SEO and structured data usage
  8. No suspicious or malicious content detected
Technical notes

Notes

The website uses a modern technology stack with integration of Google Tag Manager, Microsoft Clarity, Facebook Pixel, and Criteo for analytics and marketing. It loads fonts from Google Fonts and uses OneTrust for cookie consent management. The site is well-structured with proper meta tags, Open Graph data, and JSON-LD structured data for SEO. Performance is moderate with room for optimization, and mobile responsiveness is good. No CMS or hosting provider was explicitly identified from the HTML content. The site uses Sentry for error monitoring, indicating a proactive approach to technical issue management. Overall, the technical infrastructure supports a professional and scalable online presence.
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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