Web

File Format
Name	Web
Ontology	Electronic File Formats Web
Released	1990

Formats connected with the World Wide Web, though most of them overlap into other categories; basically everything that can be put in a file format of any sort can be put on the Web, and a multiplicity of types of documents, graphics, audio, video, markup, programming languages, and more, are used there.

Blogging and web hosting platforms

• Blogger
• Posterous
• Wordpress

Feeds, syndication, and metadata

• Atom (syndication format)
• RDF
• RSS

Markup, documents and data

• BBCode
• Cascading Style Sheets (CSS)
• HTML/XHTML
• Markdown
• Wiki markup
• WOFF

Miscellaneous

• Favicon
• Robots Exclusion Standard (robots.txt)
• URL shorteners

Program/system-specific files

• Internet Shortcut
• webarchive (HTML packaging format used by Apple Safari)
• Web browser files (bookmarks, cookies, configurations, etc.)
• Web server files (server configuration, etc.)

Protocols and parameters

• Common Gateway Interface (CGI)
• DNS
• Domain name
• HTTP
• IP address
• IPV6
• Mime-type
• SOAP
• URLs (and URIs, URNs, etc.)

Scripts/Applets/Plug-Ins

• ActiveX
• JavaScript / ECMAScript
• Open Web App Manifest (.webapp)
• VBScript

See also E-Mail, newsgroups, and forums (a number of web-based messaging/social-networking things are there)