Languages: English • の使い方 日本語 Português do Brasil • 中文(繁體) • (Add your language)

Gravatars are Globally Recognized Avatars. Integrated into WordPress, Gravatars are an avatar or gravatar is an icon, or representation, of a user in a shared virtual reality, such as a forum, chat, website, or any other form of online community in which the user(s) wish to have something to distinguish themselves from other users.

Created by Tom Werner, gravatars make it possible for a person to have one avatar across the entire web. Avatars are usually an 80px by 80px image that the user will create themselves.

A Gravatar is essentially the same thing, but they are all hosted on a single server and are called up by encrypting the users' email address via the MD5 algorithm. So instead of having one avatar on one forum you visit, and another at a blog you visit, you could have the same avatar at both.

Gravatars are now integrated into WordPress. The following is a historical reference for Gravatars in WordPress. For information on how to use and customize gravatars, see How to Use Gravatars in WordPress.

How a Gravatar is Constructed

A Gravatar is a dynamic image resource that is requested from a server. The request URL is presented here, broken into its segments. The URL always begins with:

http://www.gravatar.com/avatar/

The next part is a hashed version of the user's email address. The email address MUST be lower-cased first, then have all whitespace removed, before md5 hashing it.

279aa12c3326f87c460aa4f31d18a065

An optional rating (or r) parameter may follow with a value of [ G