DNS Domain Name System. Machines normally get this translated information from a DNS server, or they look it up in tables maintained on their systems. Machines always have one real name, but they can have one or more aliases. A directory on the server machine that contains the files, images, and data you want to present to users accessing the server. The expiration time of the returned document, specified by the remote server.
Fancy indexing provides more information than simple indexing.
Fancy indexing displays a list of contents by name with file size, last modification date, and an icon reflecting file type. Because of this, fancy indexes might take longer than simple indexes for the client to load. For example, in the filename index.html the file extension is html. The format of a given file. For example, a graphics file doesn't have the same file type as a text file.