The minimum requirements for a URL are one of the valid prefixes plus a host name. If you know the names of any subdirectories at the host site which lead to a particular file you want to view, you can enter them after the host name.
Subdirectory information is optional.
If you don't know the names of any subdirectories at a given host site, you can determine them once you get there by following links and checking the resulting URL paths as they display on your browser. If you know the name of a file you want to view, you may include that in the URL you supply your web browser. Filename information is optional. Educated Guesswork Knowing the syntax of a URL can be quite useful in your web wanderings. Suppose you'd like to visit Netscape's web site.