Internet Glossary - U
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Unique Visitor
A real visitor to a web site. Web servers record the IP addresses of each
visitor, and this is used to determine the number of real people who have
visited a web site. If for example, someone visits twenty pages within
a web site, the server will count only one unique visitor (because the
page accesses are all associated with the same IP address) but twenty
page accesses.
Upload
Act of copying a file from a local computer to another remote computer
(server) for wider distribution. Programs such as File Transfer Protocol
(FTP) are designed to help users upload and download materials.
Uptime
The period of time while a server is switched on and your web site is
available for viewing. Most servers are on almost continuously but all
require switching off from time-to-time for maintenance.
URL
Abbreviation for Universal Resource Locator. URL gives a standard address
for web resources. Every individual web page, for example, has its own
unique URL which permits the browser to find that page. The browser reads
the URL and goes to the page, wherever in the world it is located.
