When deciding a domain name, there are three rules to keep in mind. Firstly, choose a domain name that is simple and easy to read. Complicated or lengthy names can confuse potential customers and make it harder for them to remember your website. Secondly, opt for a domain name that is easy to say. A name that can be easily pronounced will make it effortless for people to recommend your website to others. Lastly, ensure your domain name is easy to remember. By selecting a catchy and memorable name, you increase the chances of customers returning to your website in the future.