Writing web copy can be tough: you need to set it up in such a way that you are able to address the needs of your target market. Moreover, web copy is not like any other written or printed piece of writing: it has to be written concisely, with all the pertinent details shown so that the person reading the copy will pick up all the main thoughts immediately.
In the world of the Internet, writing the right web copy is vital: people do not visit a website and read every single word in it, but they do need to get the right information in the least amount of time. You, as a copywriter, need to address their needs.