27/08/2023
URL, URI, URN - What are the differences?
The diagram below shows a comparison of URL, URI, and URN.
๐น URI
URI stands for Uniform Resource Identifier. It identifies a logical or physical resource on the web. URL and URN are subtypes of URI. URL locates a resource, while URN names a resource.
A URI is composed of the following parts:
scheme:[//authority]path[?query][ ]
๐น URL
URL stands for Uniform Resource Locator, the key concept of HTTP. It is the address of a unique resource on the web. It can be used with other protocols like FTP and JDBC.
๐น URN
URN stands for Uniform Resource Name. It uses the urn scheme. URNs cannot be used to locate a resource. A simple example given in the diagram is composed of a namespace and a namespace-specific string.
ยฉ๏ธ Collected
