Domain names (url address) are one of the quickest and most effective ways of identifying a web page. Learning to read domain names will enable you to quickly identity a web page’s country of origin (e.g. .au, .uk, .jp), and the entity (e.g. .edu, .gov, .org.) that has produced the page.
When you run a search using a search engine, often the full web address will be displayed along with the results. Before opening the web page, you can often check the web address and get an idea of the type of organisation or group who has published the site. This allows you to begin evaluating the quality of the information before you even open it