Keepa, accessible at https://keepa.com/, is a comprehensive tool that offers Amazon price tracking and analytics. It provides users with detailed price history charts for millions of products on Amazon, helping them monitor price fluctuations over time. Keepa also offers price drop alerts, ensuring users are notified when an item hits their desired price point. Additionally, the platform provides insights into sales rank data and historical pricing, aiding in informed purchasing decisions. Keepa is equipped with browser extensions for easy integration and access while browsing Amazon, streamlining the process of making cost-effective purchasing choices.