🔒 Data Privacy & Seller Protection Guarantee

MQ Seller Privacy Policy

Effective & Last Updated: September 22, 2026

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Core Guarantee: Zero Calculator Data Telemetry

All MQ Seller utility calculators (including Amazon FBA Calculator, TikTok Shop Calculator, CBM Container Tool, ACOS Analyzer, etc.) execute core business calculation logic directly in your browser local React runtime. Your commercial financial parameters—including unit costs, shipping expenses, selling prices, unit quantities, and margin estimates—are never transmitted, harvested, or logged on our servers, and never sold to third parties. Official fee schedules and rules datasets are bundled statically with page delivery for instant response and guaranteed commercial data privacy.

1. Introduction & Scope

Welcome to MQ Seller ("we", "us", or "our"). MQ Seller provides cross-border e-commerce sellers with real-time platform policy tracking, dynamic fee databases, and practical operational calculators. We deeply respect the confidentiality of your financial and product data. This Privacy Policy details how we handle information when you interact with our platform.

By accessing or using any part of MQ Seller, you acknowledge and agree to the terms described in this policy. If you disagree with any terms, please discontinue using our service.

2. Information We Collect & Process

To ensure system stability, security, and performance optimization, we collect only essential and minimal data:

  • Server & Access Logs: Standard web server logs including timestamps, IP addresses (for rate-limiting and DDoS mitigation), browser types, and visited paths.
  • Anonymous Usage Telemetry: Aggregated, non-personally identifiable metrics to understand tool usage and popular marketplace topics.
  • Voluntary Feedback: Suggestions and feedback submitted to improve rule accuracy or tool algorithms are used strictly for service enhancement.

3. Local Storage & Cookie Usage

We use lightweight client-side storage strictly for functional user convenience:

  • Preference Persistence: Remembering your theme mode (light/dark) and preferred measurement units (metric/imperial).
  • No Intrusive Behavioral Tracking: We do not deploy third-party cross-site behavioral profile trackers, and we never sell browsing data to data brokers.

4. Third-Party Links & External Marketplaces

Our guides and fee tables link to external official resources (such as Amazon Seller Central, TikTok Shop Academy, and eBay Policy Centers). These independent sites operate under their own terms and privacy practices. MQ Seller carries no liability for third-party websites.

5. Data Security Measures

We implement industry-standard cryptographic protections, including mandatory TLS/SSL transmission, restricted administrative backend access, and automated vulnerability monitoring to safeguard our platform infrastructure.

6. Your Rights & Policy Governance

In accordance with relevant data protection standards (including GDPR and CCPA principles), you have the right to request access to or deletion of any stored personal information. Since all calculators operate without mandatory registration, clearing your browser storage permanently clears all local session variables.

This policy is maintained and periodically reviewed alongside global marketplace regulatory standards. Any modifications take effect immediately upon publication on this page.