Percent-encoding
Method of encoding characters in a URI / From Wikipedia, the free encyclopedia
For the urlencode in MediaWiki, see Help:Magic words
For links within Wikipedia needing percent-encoding, see Help:URL § Fixing links with unsupported characters
URL encoding, officially known as percent-encoding, is a method to encode arbitrary data in a uniform resource identifier (URI) using only the US-ASCII characters legal within a URI. Although it is known as URL encoding, it is also used more generally within the main Uniform Resource Identifier (URI) set, which includes both Uniform Resource Locator (URL) and Uniform Resource Name (URN). Consequently, it is also used in the preparation of data of the application/x-www-form-urlencoded
media type, as is often used in the submission of HTML form data in HTTP requests.