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Security report for bookup.cz

bookUP s.r.o. · E-commerce · Czech Republic

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

69/100

Risk levelMedium

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

bookUP s.r.o. is a Czech-based distributor specializing in e-books and audiobooks, formed by the merger of Euromedia Group and Grand IT. The company acts as a bridge between content creators (publishers) and e-commerce retailers, offering comprehensive management and distribution services. It holds a strong market position as the exclusive e-content supplier for Luxor.cz and partners with multiple major retailers. The website reflects a professional and modern digital presence with a focus on usability and clear communication of services. Technically, the site uses modern web technologies including jQuery, Bootstrap, and Slick carousel, ensuring good mobile optimization and accessibility. Security posture is moderate with HTTPS enforced and CSRF protection in forms, but lacks visible security headers and explicit security policies. Privacy compliance is basic with GDPR and cookie policies present but no active consent mechanism. Overall, the business credibility is high with transparent contact information and clear company registration details. Recommendations include enhancing security headers, publishing security and incident response policies, and implementing cookie consent mechanisms to improve compliance and trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

5 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 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. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. 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 bookup.cz

This scan found 23 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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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
52
Security headers
40
Email security
60
DNS health
80
Network security
100
GDPR outside view
80
Average
69

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 bookup.cz, from OffSeq Breach.

Total records
4
Employees
0
Customers
4
Third parties
0
Weak passwords
25%

1 subdomain affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for bookup.cz.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

bookUP operates in the e-commerce and media sectors, targeting publishers and retailers in the Czech book market. Its business model centers on content distribution and technical integration via APIs, providing value through a wide distribution network and sales analytics. The merger of two leading entities strengthens its market position and expands its service offerings. Partnerships with prominent retailers like Luxor.cz and others indicate a robust ecosystem. The company is relatively young, founded in 2022, but leverages established market players. Growth potential is supported by technical expertise and a unified platform approach, streamlining communication between publishers and retailers. The absence of terms of service and limited public security policies suggest areas for operational maturity improvement.

Security posture

The website demonstrates a moderate security maturity level. HTTPS is enforced, and forms include CSRF tokens, indicating awareness of common web security practices. However, the absence of HTTP security headers such as Content Security Policy, HSTS, and X-Frame-Options reduces the overall security posture. No explicit incident response or security policy information is publicly available, which may impact trust and compliance. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site does not use known vulnerable libraries based on the included scripts. To enhance security, the company should implement comprehensive security headers, publish incident response procedures, and consider active cookie consent mechanisms to align with GDPR requirements.

Recommendations

  1. Implement HTTP security headers including CSP, HSTS, and X-Frame-Options to strengthen web security.
  2. Publish a clear security policy and incident response plan accessible to users and partners.
  3. Introduce an explicit cookie consent mechanism to improve GDPR compliance and user trust.
  4. Regularly audit and update third-party libraries to mitigate potential vulnerabilities.
  5. Enhance transparency by adding terms of service and data protection officer contact information.

Contact details published on the site

Addresses
Legal name
bookUP s.r.o.
Registration number
19293828
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
bookUP s.r.o.
Description
We bridge the worlds of creators and e-commerce. We ensure comprehensive management of e-books and audiobooks for publishing houses, including distribution to major online retailers.
Key services
E-book and audiobook distribution, Content conversion and management, API integration for retailers, Sales reconciliation and analytics
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.7.1, Bootstrap 5 (bundle), Slick carousel, Fine Uploader
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
75/100
Good practices seen
  • CSRF token present in forms
  • HTTPS implied by URL scheme (https://bookup.cz/)

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Clear focus on e-book and audiobook distribution services.
  3. Contact information is complete and transparent.
  4. No visible security policy or incident response information.
  5. No terms of service page found.
  6. No tracking or analytics scripts detected.
  7. No advertising or affiliate marketing detected.
  8. No social media links found on the site.
  9. Forms use CSRF tokens indicating some security awareness.
Technical notes

Notes

The website uses a modern and stable technology stack with jQuery 3.7.1, Bootstrap 5, Slick carousel, and Fine Uploader for file handling. The site is mobile optimized and accessible, with good SEO practices including meta tags and Open Graph data. Performance is moderate, with external resources loaded from reputable CDNs. The site lacks a detected CMS, suggesting a custom or proprietary platform. Hosting provider details are not explicit. The technical implementation is solid but could benefit from enhanced security configurations and performance optimizations such as caching and minification. The presence of CSRF tokens in forms indicates secure form handling practices. Overall, the technical infrastructure supports the business model effectively but has room for security and compliance improvements.
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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