A tutorial for Web newcomers about URLs and URIs, Uniform Resource Locators, Uniform Resource Indicators, and additional Internet addressing schemes... "
The URL is a string of characters uniquely identifying the source. (No two sources on the Internet can ever have the same URL).
The basic URL format for a Web page resource is
The filename is part of the path. The scheme for a Web page is http which stands for HyperText Transfer Protocol. (HyperText Transfer Protocol is an application level protocol used to facilitate the transmission of data to and from the Web server). The http is followed by a colon and two forward slashes.
Not all Web page addresses have port numbers but of the few that do, the port number is preceded by a colon.
The port number must never be omitted from the URL or the resource will not be retrieved and you will receive some type of error message.
The URL for this Web document is
Breaking the URL apart, you can see that the scheme, http, is first, followed by the colon and the two forward slashes. Next you see the host name (also called a domain name), www.hitmill.com/ followed by a single forward slash. Last, you see the path:
This particular path indicates that the file named url.html is located inside a folder named internet. There is no slash or period or dot after the filename, url.html. Recall that the .html extension indicates "HyperText Markup Language". Some servers have a need to shorten the .html file extension to .htm. This means the same thing but when copying a URL, be sure to get it the exact way the the address is supposed to be, case-sensitive and all. Occasionally you will see an extension of .shtml. This is simply a designation extension indicating what is supposed to be a secure .htm or .html file.
You use this scheme to download files from an ftp-server onto your computer. Both major browsers support the ftp addressing scheme.
If you are interested in searching ftp archives using a Web-based interface you may be interested in trying your search from
The following ftp site has a file named /HTML available for ftp download. You do not have to download it, as I merely use the following as an example of an ftp URL:
When you view this ftp resource file you will be able to see more than one file listed. The file size was indicated at the search site mentioned above.
You will only be able to view and participate in the newsgroups which have been subscribed to by your server (ISP, Internet Service Provider). If you want to participate in a newsgroup not subscribed to, just ask your server if they could subscribe it. (See what is involved, if they are able to do this).