{"id":105398,"date":"2021-12-18T09:00:51","date_gmt":"2021-12-18T03:30:51","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=105398"},"modified":"2021-12-18T12:52:18","modified_gmt":"2021-12-18T07:22:18","slug":"uri-vs-url","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/uri-vs-url\/","title":{"rendered":"URI vs URL"},"content":{"rendered":"<p>In this article, we will learn what is URI, what is URL and URI vs URL. Let&#8217;s start!!!<\/p>\n<h3>What is a URI?<\/h3>\n<p>A URI, or Uniform Resource Identifier, is a string identifier that refers to an internet resource. It is a string of characters used to identify any resource on the internet based on its location, name, or both.<\/p>\n<p>A URI has two subsets: URL (Uniform Resource Locator) and URN (Uniform Resource Name) (Uniform Resource Number). If it only contains a name, it is not a URL. In the real world, we mostly see URLs and URNs rather than direct URIs.<\/p>\n<p>HTTP, HTTPs, ftp, Idap, telnet are common URI schemes.<\/p>\n<h3>URI Syntax:<\/h3>\n<h4>1. Scheme:<\/h4>\n<p>Scheme can be any combination of letter, digit, plus sign, or hyphen (-), followed by a colon (:). The most common protocols are http, file, ftp, data, and irc. The schemes must be registered with the Internet Assigned Numbers Authority (IANA).<\/p>\n<h4>2. Authority:<\/h4>\n<p>The authority component is optional and is denoted by two forward slashes (\/).<\/p>\n<ul>\n<li>userinfo: It may include a username and, optionally, a password separated by a colon. The @ symbol comes after the sub-component.<\/li>\n<li>host: It either has a registered name or an IP address. The IP address must be surrounded by [] brackets.<\/li>\n<li>port: Optional<\/li>\n<\/ul>\n<h4>3. Path:<\/h4>\n<p>It is made up of a series of path segments separated by a slash(\/). It is always specified by the URI; however, the specified path may be empty or of 0 length.<\/p>\n<h4>4. Query:<\/h4>\n<p>It is an optional component, denoted by a question mark (?). It contains a non-hierarchical query string.<\/p>\n<h4>5. Fragment:<\/h4>\n<p>It is also an optional component that is preceded by the hash(#) symbol. It is made up of a fragment identifier that points to a secondary resource.<\/p>\n<p>Example of URI: news:comp.infosystems.www.servers.unix<\/p>\n<h3>What is a URL?<\/h3>\n<p>A URL, or Uniform Resource Locator, is used to locate a resource on the internet. It is a resource reference as well as a method of accessing that resource. A URL always represents a unique resource, which could be an HTML page, a CSS document, an image, or something else.<\/p>\n<p>A URL accesses a resource via a protocol, which can be HTTP, HTTPS, FTP, or others.<\/p>\n<p>It is primarily referred to as the website&#8217;s address, which a user can find in their address bars.<\/p>\n<h3>URL Syntax:<\/h3>\n<h4>1. Scheme:<\/h4>\n<p>The first component of the URL is a scheme, which represents a protocol that a browser must use to request the resource. HTTP or HTTPS are the most commonly used protocols for websites.<\/p>\n<h4>2. Authority:<\/h4>\n<p>The authority consists of two sub-components, separated by a colon: domain name and Port. The domain name can be anything, and the port is the technical gate through which the resource is accessed on a web server. HTTP is accessed via port 80, while HTTPS is accessed via port 443.<\/p>\n<h3>3. Path:<\/h3>\n<p>The path specifies the full path to the web server resource. It could be something like \/software\/htp\/index.html.<\/p>\n<h4>4. Query String:<\/h4>\n<p>The name and value pair are contained in the string. When used in a URL, it follows the path component and provides the information. For example, &#8220;?key1=value1&amp;key2=value2&#8221;.<\/p>\n<h4>5. Fragment:<\/h4>\n<p>It is also an optional component that is preceded by the hash(#) symbol. It is made up of a fragment identifier that points to a secondary resource.<\/p>\n<h3>Difference between URI vs URL:<\/h3>\n<p>1. URI contains both URL and URN to identify a resource&#8217;s name and location or both; URL, on the other hand, is a subset of URI and only identifies the resource&#8217;s location.<br \/>\n2. The URI example is urn:isbn:0-476-27557-4, while the URL example is https:\/\/google.com.<br \/>\n3. We can use URI to locate resources in HTML, XML, and other files, whereas we can use URL to find a web page.<br \/>\n4. Each URL can be a URI, but not all URIs can be URLs.<\/p>\n<h3>Comparison between URI and URL:<\/h3>\n<table>\n<tbody>\n<tr>\n<td><b>URI<\/b><\/td>\n<td><b>URL<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">URI is an abbreviation for Uniform Resource Identifier.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">The term URL is short for Uniform Resource Locator.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">URN, which tells the name, and URL, which tells the location, are two subsets of URI.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">URL specifies the resource&#8217;s unique location, and is a subset of URI.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">All URIs cannot be URLs because they can indicate either a name or a location.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Because every URL can only contain the location, all URLs are URIs.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">A URI attempts to identify and distinguish a resource from other resources by using the resource&#8217;s name or location.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">A URL seeks to locate or address a resource on the internet.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">ISBN 0-486-35557-4 is an example of a URI.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">https:\/\/data-flair.training\/ is an example of a URL.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">It identifies resources and binaries in XML and tags library files such as JSTL and XSTL.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">It is useful to search the internet for web pages.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">A URI scheme can be a protocol, a designation, a specification, or anything else.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">The URL scheme is typically a protocol such as HTTP, HTTPS, FTP, and so on.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Summary:<\/h3>\n<p>In this article, we looked at the concept of URI and URL, and also the syntax of each. We looked at the differences between URI and URL, and also a tabular comparison between URI and URL.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this article, we will learn what is URI, what is URL and URI vs URL. Let&#8217;s start!!! What is a URI? A URI, or Uniform Resource Identifier, is a string identifier that refers&#46;&#46;&#46;<\/p>\n","protected":false},"author":5,"featured_media":105399,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24974],"tags":[26101,26093,26100],"class_list":["post-105398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-computer-network","tag-uri-syntax","tag-uri-vs-url","tag-url-syntax"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>URI vs URL - DataFlair<\/title>\n<meta name=\"description\" content=\"Learn about URI and URL with their syntax. 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