A URL also known as Uniform Resource Locator is a long string of numbers and letters which actually points to a location of a specific page/video or an image. A URL is comprised of a whole set of numbers and letters that lets the browser understand which resource you want. It also helps it understand in which format do you want it represented in. From the URL, the first few letters represent a transfer protocol (https://). This protocol letter determines how the data from the web will be transferred to your browser.