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Internet Protocols  «Prev 

Parts of a URL

With Hypertext and HTTP, URL is one of the key concepts of the Web. It is the mechanism used by browsers to retrieve any published resource on the web. URL stands for Uniform Resource Locator. A URL is nothing more than the address of a given unique resource on the Web. In theory, each valid URL points to a unique resource. Such resources can be an HTML page, a CSS document, an image, etc. In practice, there are some exceptions, the most common being a URL pointing to a resource that no longer exists or that has moved. As the resource represented by the URL and the URL itself are handled by the Web server, it is up to the owner of the web server to carefully manage that resource and its associated URL.
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1) Service or Protocol 2) Host Name 3) Subdomain Name 4) Domain Name 5) Port Number 6) Directory on the server 7) Filename


The service or protocol part of the URL identifies the types of internet service the browser uses to access the resources
The service or protocol part of the URL identifies the types of internet service the browser uses to access the resources

The host name is used to identify web resources on HTTP servers
The host name is used to identify web resources on HTTP servers. Host names are optional.

The subdomain name identifies the name of the server hosting the resources
The subdomain name identifies the name of the server hosting the resources


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The Domain name identifies the type of entity providing the resource.

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The Port number designates the specific TCP/IP port being used to process the request and will default to 80 if it is omitted.

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The Directory identifies the location of the resources on the host server.

The file name identifies the name of the resource
The file name identifies the name of the resource