Online Marketing Glossary X
# A B C D E F G H I J K L M N O P Q R S T U V W X
XHTML: Extensible HyperText Markup Language is a class of specifications designed to move HTML to conform to XML formatting.
XML: Extensive Markup Language programming tool for websites that is used in conjunction with HTML and is useful for data exchange and creation of customized tags.
XML Sitemap: A sitemap that is created with XML language and is submitted to a search engine through a system like Google Webmaster Tools for example. XML sitemap tells Search Engines which pages to index and which are more important.