Kinds of URLs

Many kinds of URLs are defined by the Uniform Resource Locator specification. (See Appendix A, “Sources of Further Information,” for a pointer to the most recent version.) This section describes some of the more popular URLs and some situations to look out for when using them.

HTTP

HTTP URLs are by far the most common type of URLs because they point to other documents on the Web. HTTP is the protocol that World Wide Web servers use to communicate with web browsers.