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Security report for janmelvil.com

Jan Melvil Publishing · Retail · Czech Republic

Medium risk. 10 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

57/100

Risk levelMedium

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

Jan Melvil Publishing is a medium-sized European publishing company based in Brno, Czech Republic, specializing in evidence-based non-fiction and self-help literature. Founded in 2007 by Tomas Baranek and Vit Sebor, the company has published over 150 books by renowned international and Czech authors. Their business model focuses on publishing, selling books online, and managing translation rights, targeting readers interested in quality educational and lifestyle content. The website reflects a professional digital presence with a modern WordPress and WooCommerce infrastructure, integrated marketing tools, and compliance with GDPR and cookie regulations. Security posture is strong with HTTPS, security headers, and no visible vulnerabilities, though explicit security policies and incident response contacts are absent. WHOIS data is unavailable, slightly reducing trust but the overall business credibility remains high due to transparent contact information and consistent branding.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

10 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 janmelvil.com

This scan found 26 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
57
Security headers
15
Email security
65
DNS health
80
Network security
100
GDPR outside view
25
Average
57

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 janmelvil.com, from OffSeq Breach.

No leaked records found

Breach holds no records for janmelvil.com 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 company holds a niche market position as a reputable publisher of non-fiction and self-help books in the Czech and European markets. Their competitive advantage lies in curating high-quality, evidence-based content and supporting Czech authors internationally. Revenue streams include direct book sales (physical, e-books, audiobooks) and rights licensing. The target customer segment is educated readers seeking authoritative literature. Partnerships with affiliate networks and marketing platforms enhance their reach. Growth indicators include a broad catalog and active social media engagement. Strategic observations suggest maintaining strong digital marketing and expanding international rights management.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, presence of key security headers, and cookie consent mechanisms aligned with GDPR. No exposed sensitive data or vulnerable libraries were detected. However, the absence of a dedicated security policy page and incident response contact information indicates room for improvement in transparency and readiness. Compliance with privacy regulations is evident, but formal vulnerability disclosure and data protection officer contacts are missing. Overall, the security culture appears adequate for the business scale but could benefit from enhanced documentation and proactive communication.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency and readiness.
  2. Add explicit contact channels for security incidents such as security@ or abuse@ email addresses.
  3. Conduct regular audits of third-party scripts and plugins to mitigate potential vulnerabilities.
  4. Enhance website accessibility features to improve compliance and user experience.
  5. Consider implementing a formal vulnerability disclosure program to encourage responsible reporting.

Contact details published on the site

Addresses
Legal name
Jan Melvil Publishing, s.r.o.
VAT number
CZ27688496
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Jan Melvil Publishing
Description
Jan Melvil is an European publishing company founded in Brno, Czech Republic by two experienced industry professionals Tomas Baranek and Vit Sebor. Since 2007, they have published more than 150 books specializing in evidence-based non-fiction literature and bestselling self-help books by top authors. They also support Czech authors gaining international recognition.
Key services
Publishing books, Selling books online, Rights and translation management
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, WooCommerce, jQuery, Google Tag Manager, Facebook Pixel, Mailchimp
Frameworks
WooCommerce
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

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

Analytics and tracking

Services
Google Tag Manager, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Dognet
Tracking pixels
Facebook Pixel
Marketing tools
Mailchimp
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. Strong compliance with GDPR and cookie consent regulations.
  3. Clear business and contact information provided.
  4. Use of modern web technologies and marketing tools.
  5. No security or privacy policy pages explicitly found beyond GDPR and cookie policies.
  6. WHOIS data unavailable, which slightly impacts trust but no other red flags found.
Technical notes

Notes

The website is built on WordPress with WooCommerce for e-commerce functionality, leveraging jQuery and modern fonts for UI. It integrates Google Tag Manager and Facebook Pixel for analytics and marketing. Performance is moderate with preloading of key assets and deferred script loading. Mobile optimization is good with responsive design and accessible navigation. SEO is well addressed with meta tags, Open Graph, and structured JSON-LD data. Technical risks are minimal but depend on maintaining plugin and theme updates. Hosting provider details are not explicit, which could be clarified for better infrastructure transparency.
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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