Web - Document

> (World Wide) Web - (W3|WWW)

1 - About

A document is the name of a message sends over HTTP. It's the data unit for the web. A document moves on the internet and is understand by the web client (browser mainly).

When you serve a file via a web server, it's wrapped inside an http request and becomes a document.

Documents on the web have generally by nature a hierarchical nature.

This is generally a HTML document but it can be also other type of document such as:

This document (file) can be rendered by the user agent (Generally a browser)

The term document in a file system is generally a file including its structure and format, e.g. fonts, colors, and images.

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3 - Language

The encoding language of the source document (e.g., HTML, XHTML, or SVG).

See Resource - (Mime|Media) Type

4 - Database