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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 software solutions including online customer service systems, marketing robots, call centers, and WeChat customer service. The company targets enterprise clients, boasting over 800,000 customers and partnerships with major corporations such as Huawei, Tencent, and Baidu. Their website demonstrates a mature digital presence with extensive customer testimonials, partner logos, and certifications, reflecting a strong market position in the SaaS customer service industry. Technically, the site employs modern JavaScript libraries and analytics tools, though there is room for improvement in security headers and privacy compliance mechanisms. Security posture is generally good with HTTPS enforced and input validation present, but the absence of WHOIS data and cookie consent mechanisms slightly reduce trust scores. Overall, the website is professional, content-rich, and trustworthy for its target audience.

Scanned

This is an earlier scan of 53kf.com. View the latest report

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

The company operates a SaaS business model focused on customer service and marketing automation tools for enterprises. It leverages strategic partnerships with major Chinese tech firms and has a large customer base, indicating strong market penetration. The website's content and testimonials suggest high customer satisfaction and a focus on lead generation and conversion optimization. The business model includes direct sales and channel partners, with offerings spanning from online chat to private cloud and enterprise-grade security services. The presence of certifications and government registrations enhances credibility. The company appears to invest in digital marketing and analytics extensively, supporting growth and customer engagement.

Security posture

The website enforces HTTPS and uses CSRF tokens in forms, indicating good baseline security practices. However, the lack of explicit security headers such as Content-Security-Policy and X-Frame-Options is a gap. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site uses fingerprinting and multiple analytics tools, which may raise privacy concerns without explicit cookie consent. There is no published security policy or incident response contact, which could be improved to enhance transparency and readiness. Overall, the security posture is solid but could benefit from enhanced headers and privacy compliance.

Recommendations

  1. Implement and publish a comprehensive cookie consent banner to comply with GDPR and other privacy regulations.
  2. Add security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen defense against common web attacks.
  3. Publish a security policy and incident response contact information to improve transparency and trust.
  4. Consider adding a vulnerability disclosure program or security.txt file to facilitate responsible reporting.
  5. Enhance accessibility features to improve compliance and user experience for all visitors.
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
在线客服系统, 营销机器人, 呼叫中心, 微信客服, 工单系统, 账号管家, 私有云, 企业高防
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Google Analytics, Visual Website Optimizer (VWO), GrowingIO Analytics, Fingerprint2
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Input validation on phone number fields
  • Use of CSRF tokens in forms

Analytics and tracking

Services
Google Analytics, GrowingIO, Smartlook
Tracking level
extensive
Privacy practices
basic

Advertising

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

Site quality

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

Key observations

  1. Website is fully accessible with rich content and interactive features.
  2. Strong focus on customer engagement and lead generation via online chat and AI robots.
  3. Multiple customer testimonials and partner logos enhance trust.
  4. No explicit privacy or cookie consent banners detected, which may impact GDPR compliance.
  5. WHOIS data missing, which reduces domain trustworthiness score.
  6. Use of multiple analytics and marketing tools indicates mature digital marketing strategy.
  7. No visible security headers detected; opportunity for security improvements.
  8. Website is primarily in Chinese targeting Chinese enterprises.
  9. Phone number and email contacts are clearly provided in footer and header.
  10. No adult or questionable content detected; content is business and technology focused.
Technical notes

Notes

The website uses a modern JavaScript stack including jQuery, Google Analytics, Visual Website Optimizer, GrowingIO, and Smartlook for analytics and marketing optimization. It employs fingerprinting technology for user identification. The site is well-structured with responsive design elements and interactive features such as online chat and phone callback forms. Performance is moderate with some external script dependencies. SEO is supported by meta tags and structured navigation. There is no detected CMS, suggesting a custom or proprietary platform. Hosting provider details are not evident from the content. Technical risks include reliance on multiple third-party scripts and lack of some security headers.
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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