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Security report for kuaifan.co

北京初联科技有限公司 · Technology · China

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

Beijing Chulian Technology Company Limited operates kuaifan.co, a VPN and accelerator service primarily targeting overseas Chinese users who want to access domestic Chinese content such as music, video, games, and live broadcasts. The company has established a strong market presence with over 11 million users and offers multi-platform client support including Android, iOS, Windows, Mac, and TV devices. Their business model includes free basic services and VIP paid tiers, supplemented by affiliate referral programs. The website is professionally designed with consistent branding and clear navigation, supporting multiple languages and providing comprehensive user support.

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"

  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

  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 kuaifan.co

This scan found 24 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
67
Security headers
30
Email security
70
DNS health
80
Network security
100
GDPR outside view
53
Average
67

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

The company positions itself as a leading provider of overseas-to-China acceleration services, leveraging proprietary Fanster™ protocols and a global network of over 150 dedicated high-speed channels across 20 countries. Their competitive advantage lies in specialized services for streaming, gaming, and office communications with low latency and stable connections. The business model is subscription-based with additional revenue from affiliate marketing and VIP customizations. The target audience includes overseas Chinese, students, and expatriates needing reliable access to Chinese digital content. The company maintains active social media presence and partnerships with related service providers, indicating a mature ecosystem and growth orientation.

Security posture

The website enforces HTTPS and employs CAPTCHA mechanisms to protect login processes, indicating a baseline security posture. However, the absence of explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options suggests room for improvement in hardening against common web attacks. No vulnerabilities or exposed sensitive data were detected in the HTML content. Privacy compliance is supported by detailed cookie consent mechanisms and a comprehensive privacy policy, though no dedicated security or incident response policies are published. Overall, the security maturity is moderate, suitable for the business scale but with opportunities to enhance trust and resilience.

Recommendations

  1. Implement and publish HTTP security headers (CSP, HSTS, X-Frame-Options) to improve protection against common web vulnerabilities.
  2. Establish and disclose a formal security policy and incident response contact to enhance transparency and user trust.
  3. Introduce a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  4. Enhance accessibility features to improve compliance and user experience for all visitors.
  5. Regularly audit third-party scripts and tracking pixels to minimize privacy risks and optimize performance.

Contact details published on the site

Addresses
Legal name
北京初联科技有限公司
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
北京初联科技有限公司
Description
快帆海外华人免费回国加速器，支持Android/iOS/Windows/Mac/电视TV机顶盒等版本，提供音乐、视频、游戏、直播等多种加速服务。
Key services
回国加速器服务, 多平台客户端支持, VIP定制服务, 推荐返利计划
Content quality
good
Branding
consistent

Technology

Stack
jQuery, AOS (Animate On Scroll), Google Analytics, Facebook Pixel, Twitter Universal Website Tag, Baidu Analytics, Yidun Captcha
Platforms
Web, Android, iOS, Windows, Mac, TV
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Use of CAPTCHA for login
  • Kill Switch network protection mentioned
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Baidu Analytics, Facebook Pixel, Twitter Pixel
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Twitter Ads
Tracking pixels
Facebook Pixel, Twitter Pixel, Baidu Analytics
Marketing tools
PostAffTracker
Transparency
good

Site quality

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

Key observations

  1. Website provides multi-platform VPN/accelerator services targeting overseas Chinese users.
  2. Strong presence of user testimonials and media endorsements.
  3. Comprehensive cookie consent and privacy policy in place.
  4. No visible security headers detected; opportunity for improvement.
  5. Use of multiple analytics and advertising tracking pixels.
  6. WHOIS data consistent with business and geographic claims.
  7. No signs of WAF or content blocking; full content accessible.
Technical notes

Notes

The website uses a modern JavaScript stack including jQuery and AOS for animations, integrated with multiple analytics and advertising platforms such as Google Analytics, Facebook Pixel, Twitter Pixel, and Baidu Analytics. Hosting is provided by Alibaba Cloud, consistent with the registrant's location. The site supports multiple platforms and languages, with responsive design elements for mobile optimization. Performance is moderate with room for improvement in loading speed and accessibility. No CMS was detected, suggesting a custom or proprietary platform. The technical implementation is solid but could benefit from enhanced security headers and performance tuning.
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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