Resources and URIs

HTTP allows a browser, or another user agent, to communicate with different resources on the Internet: to do this the browser needs both the identity and the location of the resources. These two bits of information are described by a URI.

Identifying resources on the Web

URIs and how to access resources on the Web.

Data URLs

A specific kind of URIs, data URLs, embed the resource itself inside the identifier.

Choosing between www and non-www URLs

Advice on using a www-prefixed domain or not, this article explains the consequences of the choice as well as how to make it.

MIME Types

MIME media types define what kind of document a specific resource is. This article presents both the syntax and the most useful MIME types for use on the Web.

Common MIME types

List of common MIME types useful for Web developers.