Google PageSpeed Insights: Google PageSpeed Insights is a free tool provided by Google that analyzes the performance of a website, both on desktop and mobile devices. The tool generates a score between 0 and 100, indicating the level of optimization of the site, with a higher score representing better optimization. PageSpeed Insights also offers suggestions on how to improve the website's performance, which can help in enhancing user experience, reducing bounce rates, and potentially improving search engine rankings. This tool is essential for website owners and developers looking to optimize their site's loading speed and overall performance.