URL(Uniform Resource Locator) known as the address of a website is a reference for a resource and a way to access that resource
structure of a URL
protocol://[hostname]path[?query][#fragment]
While
URI(Uniform Resource Identifier) is a way to identify a resource. Unlike the URL, the Uniform Resource Identifier doesn't necessarily provide the means to locate the resource
To summarize it, the URL is a subset of a URI, ( that is to say, URL is a URI with a way to access that resource), another example of a URI is an ISBN. ( The International Standard Book Number is a numeric commercial book identifier that is intended to be unique. )
| URI | URL |
| Uniform Resource Identifier | Uniform Resource Locator |
| superset of URL that identifies a resource | subset of URI that specifies where a resource exists and the mechanism for retrieving it |
| the main aim of URI is to find a resource. | The main aim of URL is to get the location or address of a resource |
| URI in used in HTML, XML and other files. | URL is used to locate only web pages, |
| Example urn:isbn:0-486-27557-4. | Example 'kasasira.pages.dev' |