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Security report for merk.cz

Imper CZ s.r.o. · Technology · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

61/100

Risk levelMedium

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

Imper CZ s.r.o. operates the Merk business database platform, a comprehensive B2B marketing and sales tool serving over 15,000 users across 2,000 companies in the Czech and Slovak Republics. The platform aggregates data from over 4,000 sources, providing detailed business information on more than 4 million entities, including verified contact details and financial analytics. Merk positions itself as a critical tool for companies seeking to expand their market reach and optimize customer targeting. Technically, the website is built on WordPress and leverages modern web technologies including jQuery, Google Tag Manager, and various marketing and analytics integrations such as Intercom and LinkedIn Insight. The site demonstrates good mobile optimization, SEO practices, and performance, with a comprehensive cookie consent mechanism ensuring GDPR compliance. From a security perspective, the site enforces HTTPS and employs cookie consent management but lacks explicit security headers and visible incident response policies. No critical vulnerabilities or exposed sensitive data were detected. The absence of WHOIS data limits domain trust verification, but the professional presentation and business indicators suggest legitimacy. Overall, the site is a well-structured, professional B2B platform with strong compliance and marketing capabilities. Strategic improvements in security headers and transparency around security policies would enhance trust and resilience.

Scanned

NIS2 and GDPR posture

GDPR outside view
60/ 100 · Medium
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

7 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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';…

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Keep watching merk.cz

This scan found 25 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.

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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
62
Security headers
15
Email security
70
DNS health
60
Network security
100
GDPR outside view
60
Average
61

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

Merk serves as a leading B2B data provider in the Czech and Slovak markets, offering a rich database of business entities with verified contacts and financial data. Its competitive advantage lies in data quality, integration capabilities (API, CRM modules), and a user base of thousands of companies. The business model is subscription-based, targeting sales and marketing professionals seeking to identify and nurture leads. The presence of major corporate clients and a comprehensive GDPR-compliant framework supports its market credibility. Partnerships with related services like Leady and Mediaboard expand its ecosystem. Growth potential is supported by continuous data updates and integration with modern marketing tools.

Security posture

The website demonstrates a moderate to good security posture with mandatory HTTPS and cookie consent mechanisms in place. However, it lacks explicit security headers such as Content-Security-Policy and X-Frame-Options, which are recommended to mitigate common web attacks. No visible incident response or security policy pages were found, which could be a gap in transparency and readiness. The use of multiple third-party scripts necessitates regular security audits to prevent supply chain risks. Overall, the security posture is adequate for the business type but could be improved with enhanced header policies and published security practices.

Recommendations

  1. Implement and enforce security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a clear security policy and incident response contact information on the website.
  3. Conduct regular security audits of third-party scripts and plugins to mitigate supply chain risks.
  4. Enhance accessibility features to improve compliance and user experience for all users.
  5. Maintain and update GDPR compliance documentation and cookie consent mechanisms to reflect evolving regulations.

Contact details published on the site

Addresses
Legal name
Imper CZ s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Imper CZ s.r.o.
Description
Merk není jen databáze firem, ale základní obchodní a marketingový nástroj, který denně pomáhá 15.000 uživatelům ve více než 2000 společnostech posilovat stávající a nacházet nový byznys.
Key services
Business database, Verified contact data, CRM integration, API access, Data export
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Slick Carousel, Google Tag Manager, Cookiebot, Intercom, LinkedIn Insight Tag, Flipbook plugin, Contact Form 7, Complianz GDPR plugin
Frameworks
WordPress
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent management
  • No exposed sensitive data in HTML
  • Use of security and analytics scripts asynchronously

Analytics and tracking

Services
Google Analytics, LinkedIn Insight, Intercom
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Seznam Retargeting, Google Ads
Tracking pixels
LinkedIn Insight
Marketing tools
Intercom, Leady, Cookiebot
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 rich content and no blocking detected
  2. WHOIS data unavailable, limiting domain trust verification
  3. Strong GDPR compliance and cookie consent mechanisms present
  4. Multiple trusted client logos and professional design enhance credibility
  5. Use of modern web technologies and analytics tools
  6. No visible security policy or incident response contact info
  7. No adult or questionable content detected
Technical notes

Notes

The website is built on WordPress CMS with a modern tech stack including jQuery, Slick Carousel, and various marketing and analytics integrations such as Google Tag Manager, Intercom, and LinkedIn Insight. Performance is moderate with good mobile optimization and SEO practices. The site uses asynchronous loading for scripts to improve load times. There is no explicit hosting provider identified from the data. The site uses multiple plugins for forms, cookie management, and flipbook functionality, indicating a feature-rich environment. Technical risks include potential plugin vulnerabilities and the need for improved security headers. Overall, the technical implementation supports the business goals effectively with room for security and accessibility enhancements.
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

Earlier scans of this domain

  1. 61/100Medium34 findingsView report
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