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Learn how to use character entity references in XML and HTML documents, and see the list of predefined and custom entities for various scripts and symbols. Find out the differences between numeric and character entity references, and the formal public identifiers for HTML DTD entities subsets.
Learn how to specify and detect the character encoding of HTML documents, and which encodings are permitted by the HTML standards. The web page explains the difference between UTF-8, UTF-16, UTF-32, and other encodings, and their advantages and disadvantages.
HTML is the standard markup language for web pages, developed by Tim Berners-Lee and others since 1980. Learn about the evolution of HTML from SGML to HTML5, and the elements, attributes, and applications of HTML.
Learn about the history, delegation and management of ccTLDs, the Internet top-level domains generally used or reserved for countries or territories. See the list of 308 ccTLDs, including their names, codes, entities, explanations and features.
Learn the meaning and usage of HTTP response status codes, which indicate the server's response to a client's request. The codes are classified into five categories: 1xx, 2xx, 3xx, 4xx, and 5xx.
HTML5 is a markup language for structuring and presenting hypertext documents on the World Wide Web. It was the fifth and final major HTML version that is now a retired W3C recommendation, and it includes features for multimedia, graphics, and web applications.
A comprehensive list of software used to manage Portable Document Format (PDF) documents, with links to articles on each software. The list covers creators, viewers, editors, converters, development libraries and other categories of PDF software.
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