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Security report for clonbrowser.net

CLOUND NEXUS ECOM SERVICE CO., Limited · Technology · China

Medium risk. 5 critical or high findings in Security headers and GDPR outside view.

Security score

54/100

Risk levelMedium

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

ClonBrowser is a Chinese-based technology company specializing in anti-detection fingerprint browsers designed for secure multi-account management across platforms such as Facebook, TikTok, Amazon, and Web3 services. The company positions itself as a leader in this niche with over 100,000 active users and offers a free-to-use browser with advanced encryption and proxy support. Their business model focuses on providing software solutions that enable users to safely manage multiple accounts with features like isolated profiles, encrypted data synchronization, and team management capabilities. Technically, the website is built on WordPress with the Enfold theme and uses common web technologies such as jQuery. The site is well-structured, mobile-optimized, and employs HTTPS with valid SSL certificates, ensuring secure communication. However, some modern security headers are missing, and there is no visible cookie consent mechanism, which could impact privacy compliance. From a security perspective, the site demonstrates good practices such as encrypted data transmission and no visible vulnerabilities in libraries or exposed sensitive data. The absence of WHOIS registration data for the domain raises some concerns about domain legitimacy and trustworthiness. No explicit incident response or vulnerability disclosure information is provided, which could be improved. Overall, ClonBrowser presents a professional and trustworthy front with strong technical implementation and a clear market focus. Strategic improvements in privacy compliance, security policy transparency, and domain registration clarity would enhance their credibility and security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

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 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 Policy found

      GDPR requires clear information about cookie usage

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

    • 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

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

Keep watching clonbrowser.net

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.

Daily monitoring

Recommended

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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
85
Security headers
15
Email security
70
DNS health
60
Network security
40
GDPR outside view
53
Average
54

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

ClonBrowser operates in the technology sector, specifically targeting users requiring secure multi-account management and anti-detection browsing capabilities. Their competitive advantage lies in advanced fingerprint spoofing, proxy integration, and encrypted data synchronization. The company leverages partnerships with proxy providers and captcha solving services to enhance its offerings. Revenue likely comes from premium subscriptions or enterprise solutions, although the core browser is free. The target customers include social media managers, e-commerce professionals, Web3 users, and digital marketers. The company shows growth potential with a sizable user base and active social media presence. However, the lack of transparent domain registration and limited contact information could hinder trust among new users.

Security posture

The website employs HTTPS with strong SSL configuration, ensuring encrypted data transmission. Security best practices such as data isolation, end-to-end encryption, and proxy support are highlighted in product features. However, the absence of key HTTP security headers like Content-Security-Policy and X-Frame-Options reduces protection against certain web attacks. No visible vulnerability disclosure or incident response policies are present, limiting transparency. The missing cookie consent mechanism and limited privacy compliance indicators suggest gaps in regulatory adherence. Overall, the security posture is solid but could benefit from enhanced header implementation, formal security policies, and improved privacy controls.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web vulnerabilities.
  2. Add a cookie consent banner and detailed cookie policy to improve GDPR and global privacy compliance.
  3. Publish clear terms of service and security policy pages to increase transparency and user trust.
  4. Establish and publicize a vulnerability disclosure program and incident response contact to demonstrate security maturity.
  5. Clarify domain registration details or use verified WHOIS data to improve domain legitimacy and trustworthiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CLOUND NEXUS ECOM SERVICE CO., Limited
Description
ClonBrowser 是一款永久免费使用的反检测指纹浏览器，采用多种加密算法，安全管理用户账户资产。
Key services
反检测指纹浏览器, 多账户管理, 端到端加密传输, 代理支持, 数据同步, 团队成员管理
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress 4.8.14, jQuery 1.10.2, Enfold Theme 3.8.5, PHP, HTML5, CSS3
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Baidu Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Baidu Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content in Chinese language.
  2. No WAF or blocking mechanisms detected.
  3. Website uses HTTPS with valid SSL.
  4. No explicit contact emails or phone numbers found; contact is via registration page and social media.
  5. No cookie consent banner or explicit cookie policy found.
  6. Privacy policy is present and comprehensive but no GDPR compliance indicators.
  7. No terms of service or security policy pages detected.
  8. Multiple social media channels linked in footer.
  9. Website uses WordPress CMS with Enfold theme.
  10. Website content is professional and targeted at multi-account management users.
Technical notes

Notes

The website is built on a mature WordPress CMS platform using the Enfold theme, with jQuery and standard web technologies. The site is mobile responsive and optimized for SEO with proper meta tags and structured navigation. Performance is moderate, with some external scripts loaded from third-party domains. The absence of modern security headers and cookie consent mechanisms indicates areas for technical improvement. Hosting provider details are not explicitly identified. Overall, the technical infrastructure is stable and professional but could be modernized with enhanced security and privacy features.
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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