CAOS (Complete Analytics Optimization Suite) is a WordPress plugin that enables users to host Google Analytics' gtag.js file locally, enhancing website performance and compliance with privacy regulations. This free tool automates the process of keeping the tracking code updated using WordPress' built-in Cron scheduling, making it a convenient solution for website owners. CAOS supports Minimal Analytics 4, providing a lightweight alternative to traditional Google Analytics libraries, effectively reducing unused JavaScript warnings in PageSpeed Insights.

The plugin is designed for seamless integration, allowing users to add tracking codes to various locations in their theme and ensuring compatibility with other popular analytics plugins and cookie notice solutions. Features such as preconnecting to Google Analytics to minimize latency, randomizing file names to bypass ad blockers, and options for cookie expiry settings contribute to improved site speed and user experience. CAOS also offers Pro features for enhanced GDPR compliance, including randomization of client IDs and stealth mode for anonymizing visitor data.