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Security report for 53kf.com

快服集团 · Technology · China

High risk. 9 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

49/100

Risk levelHigh

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

53KF is a leading Chinese technology company specializing in customer service systems and marketing automation solutions. With over 15 years of experience and more than 800,000 enterprise customers, it holds a strong market position supported by partnerships with major technology firms such as Huawei, Tencent, and Baidu. The company offers a comprehensive suite of services including online customer service platforms, AI chatbots, call centers, WeChat customer service, and CRM integrations. The website reflects a professional and consistent brand image with rich content and customer testimonials that reinforce trust. Technically, the website employs a modern tech stack including jQuery, Google Analytics, and Visual Website Optimizer, with good mobile optimization and moderate performance. Security practices include HTTPS enforcement and CSRF protection, but lack some security headers and cookie consent mechanisms, indicating room for improvement in compliance and security hardening. The absence of WHOIS data reduces transparency but does not significantly detract from the site's legitimacy given the strong business presence. Overall, the security posture is solid but could benefit from enhanced HTTP security headers and privacy compliance features. The extensive use of tracking and analytics tools suggests a mature digital marketing strategy but requires careful privacy management. The website is safe for general audiences and does not contain adult or explicit content.

Scanned

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

9 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching 53kf.com

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.

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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
15
Email security
65
DNS health
70
Network security
40
GDPR outside view
35
Average
49

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

53KF operates in the technology sector, focusing on SaaS solutions for customer service and marketing automation. Its business model revolves around subscription-based software services targeting enterprises seeking to improve customer engagement and sales conversion. The company demonstrates strong growth indicators with a large customer base and strategic partnerships. Its competitive advantages include a comprehensive product suite, deep integration with major Chinese internet platforms, and a strong brand reputation supported by certifications and customer testimonials. The company leverages multiple marketing and analytics tools to optimize customer acquisition and retention. Strategic observations highlight the importance of expanding privacy compliance and security measures to maintain trust and regulatory alignment.

Security posture

The website exhibits a moderate to good security maturity level with HTTPS enforced and CSRF tokens implemented. However, the lack of key security headers such as Content-Security-Policy, HSTS, and X-Frame-Options presents potential risks. No explicit vulnerabilities or exposed sensitive data were detected in the provided content. The absence of a formal security policy or incident response contact information indicates gaps in compliance and readiness. Data protection practices include browser fingerprinting and input validation, but cookie consent mechanisms are missing, which may affect GDPR compliance. Overall, the security culture appears functional but could be enhanced by adopting industry best practices and formalizing security governance.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, HSTS, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  2. Introduce a visible cookie consent banner and update privacy policies to explicitly address GDPR and other privacy regulations.
  3. Publish a formal security policy and provide clear incident response contact channels to improve transparency and compliance.
  4. Regularly audit and update third-party scripts and analytics tools to minimize vulnerabilities and privacy risks.
  5. Enhance accessibility features and conduct usability testing to improve compliance and user experience across devices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
快服集团
Description
53KF客服系统作为行业领先品牌。入口全渠道覆盖，界面外观高度自定义，客服全链路工作平台。智能机器人辅助接待，全维度数据分析报表，帮助企业提高销售额、提升留存率、减少人工成本。
Key services
Online customer service system, Marketing AI chatbot, Call center solutions, WeChat customer service, CRM integration, Enterprise defense services, Private cloud deployment
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Google Analytics, Visual Website Optimizer (VWO), Fingerprint2 (browser fingerprinting), Custom JavaScript, CSS3, HTML5
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • CSRF token present in meta tag
  • Input validation on phone number fields
  • Use of fingerprinting for user identification

Analytics and tracking

Services
Google Analytics, GrowingIO
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Visual Website Optimizer (VWO)
Tracking pixels
GrowingIO
Marketing tools
Google Optimize, VWO, GrowingIO
Transparency
basic

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 interactive features.
  2. Strong focus on customer service and marketing automation solutions.
  3. Multiple customer testimonials and partner logos enhance trust.
  4. No visible security headers detected; room for improvement in security hardening.
  5. WHOIS data unavailable, which is a minor concern for domain transparency.
  6. No privacy or cookie consent banners detected, which may impact compliance.
  7. Use of multiple third-party analytics and marketing tools with extensive user tracking.
Technical notes

Notes

The website uses a traditional web technology stack centered on jQuery and custom JavaScript, supplemented by third-party analytics and optimization tools such as Google Analytics, VWO, and GrowingIO. The site is moderately performant with good mobile responsiveness but lacks advanced modern frameworks or CMS detection. The use of browser fingerprinting indicates an advanced approach to user identification and tracking. Technical debt is moderate given the reliance on older libraries like jQuery 1.x and 3.x. Opportunities exist to modernize the stack with newer frameworks and improve security configurations. Hosting details are not explicit, but the presence of multiple subdomains and external scripts suggests a distributed infrastructure.
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. 49/100High32 findingsView report
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