Testing and improving your website speed is essential for maximizing the impact of your email marketing efforts. Several tools are available to help you measure your websiteâs performance, such as Google PageSpeed Insights, GTmetrix, and Pingdom. These tools provide insights into various aspects of your website's speed and offer recommendations for improvement. Common strategies for enhancing website speed include optimizing images, leveraging browser caching, minimizing HTTP requests, and using a content delivery network (CDN).