Most of owners of the computer which is actively using resources of the Internet even do not guess that such URL. Actually, URL - Uniform Resource Locator (determinant of location of a resource) – shows where any given information is stored in network.
Address components
The protocol of access, domain name, host of the computer behind which the user, and path to the file to networks works are a part of URL. URL length depends on the data transfer protocol. Some parameters of such record are required, others – are not present. Sometimes to this parameter the link to any part of the document, so-called "anchor" increases. In other words all this is the website address on the Internet. It is set automatically.
It just also is behind URL abbreviation. URL is necessary to find the necessary resource in the Internet. Everything that the user sees in an address bar of the browser, and will be URL. In use it is called the "link" conducting on a certain website. URL have all websites on the Internet.
It as a rule represents the standardized character set. These are Latin letters, the Arab digits and a limited character set of a punctuation: hyphen, underscore, point. Other characters will be recoded including non Latin letters, for example, Cyrillics.
It is impossible to apply the concept URL only to the website because images, audio- and video files also have "addresses" to which they can be found.
And there was such time when had no idea of URL. Then net surfing was much more difficult. Opening of URL belongs to the Geneva scientist Tim Bernesu-Li. He made it recently – in 1990. Most likely, in the near future the concept URL "will absorb" more extensive URI.
URL is always unique. It is interesting that any person can be found on this path if to want.
For people and robots
However Tim Berners-Li declared also other URL function – for simplification of indexation of web pages that is necessary for advance of a resource and its output in a top. The people who are engaged in web advance pay attention to this feature of the network address. The search robot, following on network, finds web pages nepostredstvenno on their URL.
That the web page was indexed by the searcher as it is possible better, including it is necessary that its URL was simple and clear. In CEO optimization there is such concept as chelovekoponyatny URL (CNC). That is the visitor coming on a resource with a certain address should get already at this stage an idea of its subject. It first of all depends on a domain name and "anchor". Such URL is considered correct.
Among URL select absolute and differential addresses and also static and dynamic.