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URI | URL | URN

dev117uday profile image Uday Yadav Updated on ・1 min read

The world of Uniform Resource ___

sum-up

Here the word resource could be anything, take it as a img on your computer for easier understanding

URI

  • URI stands for Uniform Resource Identifier
  • A URI contains two things
    • Name
    • Location
  • We need URI so identify the resource from its name and also be able to locate it using location

URL

  • URL stands for Uniform Resource Locator
  • This is basically the address of the resource.

URN

  • URN stands for Uniform Resource Name
  • This is basically the name of the resource.

Therefore : URI = URL + URN

The URI generic syntax consists of a hierarchical sequence of five components

URI = scheme:[//authority]path[?query][#fragment]
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where the authority component divides into three subcomponents:

authority = [userinfo@]host[:port]
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             host   port
          ┌───┴───┐ ┌─┴┐
  https://localhost:8080/forum/q/?tag=networking#top
  └─┬─┘   └───────────┬──────────────┘└───────┬───────┘ └───────────┬─────────────┘ └┬┘
  scheme          authority                  path                 query           fragment
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I hope you like this article !

Discussion (4)

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cstryker profile image
Colin Stryker

I've been conflating the two for years. This is helpful to actually get a simple explanation. Thanks!

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zippytyro profile image
Shashwat Verma

This is really helpful man, I used to think while reading about URL and URI.

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ppezaris profile image
ppezaris

Excellent information, thanks!

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alfiannsx98 profile image
Irman itu Aku

Nice info. Thankss