Lesson 4: Linking Tags
(About URLs)

URL Default Filenames
If you fail to specify a directory and filename, the default file will usually be retrieved. On most servers, the default file is named index.htm or index.html, but some servers use default.htm or default.html. In theory, the host server can be configured to use any filename as a default, but the names above are recommended. All of the following examples achieve the same results.

http://www.webyoda.com
http://www.webyoda.com/
http://www.webyoda.com/index.htm