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Security report for masterdc.com

MasterDC · Technology · Czech Republic

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

70/100

Risk levelMedium

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

MasterDC is a specialized IT infrastructure company operating primarily in Central Europe, with nearly 30 years of experience managing company IT and running two data centers. Their service portfolio includes dedicated servers, cloud servers, VPS hosting, managed servers, server housing, cluster solutions, and expert IT consulting and training. The company targets businesses requiring robust IT infrastructure and managed services. The website reflects a mature digital presence built on WordPress and Elementor, with good SEO and mobile optimization. Security posture is adequate with HTTPS and cookie consent mechanisms, though explicit security policies and incident response information are not publicly detailed. The absence of WHOIS registration data is a notable concern for domain legitimacy, but the professional website and business references provide mitigating trust signals. Overall, the company appears established and credible in its sector, though domain registration verification is recommended.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

6 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 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. 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

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

Keep watching masterdc.com

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

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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
75
DNS health
80
Network security
100
GDPR outside view
85
Average
70

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

MasterDC holds a solid position in the Central European IT infrastructure market, leveraging nearly three decades of experience. Their business model focuses on providing comprehensive IT infrastructure solutions including data center services and managed IT outsourcing. The company serves medium to large enterprises requiring reliable and secure IT environments. Their website content and references indicate a focus on quality and customer trust. The partnership with www.master.cz suggests a broader ecosystem or related entity. The company’s growth potential is supported by a diverse service offering and regional data center presence. However, the lack of transparent domain registration details could pose challenges in trust for new clients or partners.

Security posture

The website employs HTTPS and includes a cookie consent banner compliant with GDPR, indicating awareness of privacy and security regulations. However, there is no visible publication of formal security policies, incident response procedures, or vulnerability disclosure programs. Security headers are not explicitly detected, and no security.txt file is present. The use of third-party scripts like Google Analytics and Tag Manager is standard but requires ongoing monitoring for vulnerabilities. The absence of WHOIS data reduces trust in domain ownership transparency. Overall, the security posture is moderate with room for improvement in policy transparency and technical security controls.

Recommendations

  1. Implement and publish comprehensive security policies and incident response procedures on the website.
  2. Add security headers such as Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to enhance protection.
  3. Publish a security.txt file to facilitate responsible vulnerability disclosure.
  4. Verify and update WHOIS domain registration information to improve trust and legitimacy.
  5. Enhance accessibility features to meet compliance standards and improve user experience.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
MasterDC
Description
We have been taking care of company IT for almost 30 years. We run two data centres in Central Europe and our IT specialist team provides a wide scale of services.
Key services
Dedicated Servers, Cloud Servers, VPS Hosting, Managed Servers, Server Housing, Cluster Solutions, IT Consulting & Training, IT Infrastructure Design, Managed Services, Corporate IT Management
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Elementor, Yoast SEO, Google Tag Manager, Google Analytics, jQuery
Frameworks
Elementor
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enabled
  • Cookie consent banner with opt-in
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and content-rich for IT infrastructure services.
  2. No WHOIS data available, which is unusual and reduces trust.
  3. Cookie and privacy policies are present and GDPR compliant.
  4. No explicit security policies or incident response info published.
  5. No suspicious or malicious content detected.
  6. Uses standard WordPress and Elementor technologies.
  7. Includes Google Analytics and Tag Manager for tracking.
  8. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on WordPress CMS using Elementor page builder and Yoast SEO for optimization. It integrates Google Tag Manager and Google Analytics for tracking user behavior. The site loads CSS and JS assets efficiently with minification and caching plugins like WP Rocket. Mobile responsiveness is good, and navigation is clear with mega menus. However, accessibility features are basic and could be improved. No major technical vulnerabilities or outdated libraries were detected in the HTML content. Hosting provider details are not explicitly identified. Performance is moderate, with potential for optimization in loading speed and accessibility compliance.
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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