Your IP Your Status

Uniform Resource Identifier

Definition of Uniform Resource Identifier

A Uniform Resource Identifier (URI) is a string of characters that identifies a particular resource. These resources can be anything accessible on the internet, such as web pages, images, downloadable files, and more. URIs serve as a standard way to locate and access resources across different protocols and systems.

Origin of Uniform Resource Identifier

The concept of URIs originated with the development of the World Wide Web by Tim Berners-Lee in the early 1990s. Berners-Lee proposed a system where each resource on the web could be uniquely identified using a simple syntax. This idea led to the creation of Uniform Resource Locators (URLs) and Uniform Resource Names (URNs), which together form the broader category of URIs.

Practical Application of Uniform Resource Identifier

One practical application of URIs is in web browsing. When you enter a URL into your web browser's address bar, you're essentially providing a URI that the browser uses to locate and retrieve the corresponding web page. Similarly, URIs are used in hyperlinks within web pages, allowing users to navigate seamlessly between different resources on the web.

Benefits of Uniform Resource Identifier

URIs offer several benefits:

Standardization: URIs provide a standardized way to identify and access resources on the internet, promoting interoperability across different systems and platforms.

Flexibility: URIs can represent various types of resources, including web pages, files, and services, making them versatile and adaptable to different contexts and applications.

Scalability: With URIs, the web can accommodate an ever-growing number of resources without running out of unique identifiers, ensuring scalability and continued expansion.

Accessibility: URIs enable easy access to resources on the internet, facilitating information sharing, collaboration, and knowledge dissemination on a global scale.

SEO Benefits: Using descriptive and relevant URIs can improve search engine optimization (SEO) by making it easier for search engines to index and rank web pages based on their content.


A URI is a broader term that encompasses Uniform Resource Locators (URLs) and Uniform Resource Names (URNs). URLs specifically identify the location of a resource on the internet, while URNs serve as persistent, location-independent identifiers for resources.

Yes, URIs can contain certain special characters, but they must be encoded using percent-encoding to ensure compatibility and compliance with URI syntax rules.

In general, URIs are case-sensitive, meaning that uppercase and lowercase letters are treated as distinct characters. However, some systems or protocols may treat URIs as case-insensitive for practical purposes.


Time to Step up Your Digital Protection

The 2-Year Plan Is Now
Available for only /mo

undefined 45-Day Money-Back Guarantee