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Security report for 3cx.cz

3CX Ltd · Technology · N/a

Low risk. 1 critical or high finding in GDPR outside view.

Security score

88/100

Risk levelLow

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

3CX Ltd is a technology company specializing in software-based VoIP IP PBX systems that integrate voice, video, live chat, and social media messaging into a unified communications platform. The company positions itself as a global provider with a strong market presence and a comprehensive suite of communication tools tailored for businesses. The website reflects a mature digital infrastructure with professional design, SEO optimization, and extensive marketing and analytics integration. Security posture is solid with HTTPS and no evident vulnerabilities, though explicit security policies and incident response information are not publicly disclosed. The absence of WHOIS data for the domain introduces some uncertainty regarding domain registration transparency, but the overall brand presence and content quality support legitimacy. Strategic recommendations include enhancing security header implementation and publishing clear security and incident response policies to bolster trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 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

1 finding 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.

    • 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

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Keep watching 3cx.cz

This scan found 12 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
100
Security headers
95
Email security
85
DNS health
75
Network security
100
GDPR outside view
73
Average
88

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 3cx.cz, from OffSeq Breach.

Total records
102
Employees
0
Customers
102
Third parties
0
Weak passwords
32%

30 subdomains 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 3cx.cz.

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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

3CX operates in the telecommunications and technology sectors, offering unified communications solutions primarily targeting businesses seeking integrated voice, video, and messaging services. Their business model revolves around software licensing and service provision for IP PBX systems. The company demonstrates strong market positioning with a consistent brand and global reach, supported by active social media channels and comprehensive marketing efforts. Revenue streams likely include software sales, subscriptions, and support services. The website's multilingual support and localized content indicate a broad international customer base. Partnerships and subsidiary information are not explicitly detailed in the provided data.

Security posture

The website employs HTTPS with a good SSL configuration and integrates multiple third-party analytics and advertising scripts, which are standard for marketing but require ongoing monitoring for vulnerabilities. No critical security headers were explicitly detected in the HTML snippet, suggesting room for improvement. There is no public security policy or incident response contact information, which could be a compliance gap. No vulnerabilities or exposed sensitive data were found in the content. Overall, the security posture is good but could be enhanced by publishing security policies and implementing comprehensive HTTP security headers.

Recommendations

  1. Implement and explicitly declare HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a dedicated security policy and incident response plan accessible from the website.
  3. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  4. Enhance transparency by providing clear WHOIS domain registration information or using verified domain registrars.
  5. Maintain GDPR compliance by clearly stating data retention policies and user rights.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
3CX Ltd
Description
3CX offers a full-featured telephone exchange system integrating voice, video, live chat, Facebook, and text messaging into one system.
Key services
VoIP IP PBX software, Live chat integration, Video conferencing, Facebook and text message integration
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Yoast SEO, Google Tag Manager, Facebook Pixel, Reddit Pixel, Quora QEvents, LinkedIn Insight Tag, Twitter Universal Website Tag
Frameworks
WordPress, Avada Theme
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of secure cookies (implied)
  • No vulnerable libraries detected

Analytics and tracking

Services
Google Analytics, Facebook Analytics, Reddit Analytics, Twitter Analytics, Quora Analytics, LinkedIn Analytics
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google Ads, Facebook Ads, Twitter Ads, Reddit Ads, Quora Ads, LinkedIn Ads
Tracking pixels
Facebook Pixel, Reddit Pixel, Twitter Universal Website Tag, Quora QEvents, LinkedIn Insight Tag
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Content is professional, well-structured, and business-focused.
  3. Strong use of SEO and structured data for enhanced search presence.
  4. Multiple tracking and advertising pixels indicate extensive marketing efforts.
  5. No explicit security policy or incident response information found publicly.
  6. WHOIS data missing, which is a concern for domain transparency.
  7. No explicit contact emails or phone numbers found in the provided HTML snippet.
  8. Social media links to official 3CX accounts are present.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built on WordPress using the Avada theme, leveraging modern JavaScript libraries such as jQuery and multiple marketing and analytics tags including Google Tag Manager, Facebook Pixel, and others. The site is well-optimized for SEO with comprehensive meta tags and structured data (JSON-LD). Performance appears fast with good mobile optimization and accessibility features. The technical stack is mature and supports a professional business presence. Hosting provider details are not explicitly identified. Continuous monitoring of third-party scripts and CMS/plugin updates is recommended to avoid technical debt and security risks.
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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