Gravatar (Globally Recognized Avatar) is the abbreviation of "globally recognized avatar" (literally translated as "globally recognized avatar"). It originated from the widely used avatars in various forums on the Internet. With the widespread popularity of blogs, avatars also started appearing in comments on various blogs. To allow users to have a unified avatar while leaving comments on different blogs, http://www.gravatar.com/ introduced the concept of Gravatar and began providing this service. The service concept is very simple: it links personal email addresses with avatars. By registering an account at www.gravatar.com and uploading a photo, you can complete the setup. When you leave comments on websites that support Gravatar and use your personal email, your avatar will appear next to your comment.