Yes, of course you can. However, depending on the size of and amount of traffic to your website, you do risk a noticeable deterioration in loading time. If your competitors use a CDN and therefore provide their users and customers with faster access times to their content, offers, and services from any location, you will suffer a competitive disadvantage. Long loading times can cause users and potential customers to jump ship. If, for example, you're hosting a US website without using a CDN, visitors from abroad - especially from far-away countries such as China or Russia - may notice significantly longer loading times. This usually leads to an increased bounce rate. With a content delivery network, a network of servers in different data centers all over the world, and correspondingly fast loading times, risks like these can be minimized.