MDN Web Docs Glossary: Definitions of Web-related terms

Web technologies contain long lists of jargon and abbreviations that are used in documentation and coding. This glossary provides definitions of words and abbreviations you need to know to successfully understand and build for the web.

Note: If you'd prefer a web development glossary in book form, check out The Web Development Glossary (EPUB, MOBI, PDF). It’s a third-party glossary that includes the entries found here, and also adds a wide range of additional entries.

Glossary of Terms

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Site
The site of a piece of web content is determined by the registrable domain of the host within the origin. This is computed by consulting a Public Suffix List to find the portion of the host which is counted as the public suffix (e.g. com, org or co.uk).

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See also