Compass SEO Checker is a free Chrome extension designed to assist users in analyzing HTML source code from both development and SEO perspectives. This tool provides a structured overview of essential elements such as the title, description, keywords, canonical URL, hreflang tags, and favicons, making it easier for developers and SEO specialists to ensure web pages are optimized effectively.

In addition to the main features, Compass SEO Checker offers dedicated tabs to explore various aspects of a webpage. Users can inspect heading tags (h1 to h6), social media meta tags (Open Graph and Twitter), image tags along with CSS background images and their sizes, anchor tags, and script tags, including preconnect and prefetch links. This comprehensive functionality makes it a valuable tool for optimizing web performance and SEO strategies.