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A Uniform Resource Identifier helps identify a source without ambiguity. Many URI schemes are registered with the IANA ; however, there exist many unofficial URI schemes as well. Mobile deep links are one example of a class of unofficial URI schemes that allow for linking directly to a specific location in a mobile app.
Therefore, URLs are a subset of URIs, ie. every URL is a URI (and not necessarily the other way around). [2] Other URIs provide only a unique name, without a means of locating or retrieving the resource or information about it; these are Uniform Resource Names (URNs). The web technologies that use URIs are not limited to web browsers.
A uniform resource locator (URL), colloquially known as an address on the Web, [1] is a reference to a resource that specifies its location on a computer network and a mechanism for retrieving it. A URL is a specific type of Uniform Resource Identifier (URI), [2] [3] although many people use the two terms interchangeably.
A URL will often comprise a path, script name, and query string.The query string parameters dictate the content to show on the page, and frequently include information opaque or irrelevant to users—such as internal numeric identifiers for values in a database, illegibly encoded data, session IDs, implementation details, and so on.
To aid the installed base of legacy applications on Win32 PathCreateFromUrl recognizes certain URLs which do not meet these criteria, and treats them uniformly. These are called "legacy" file URLs as opposed to "healthy" file URLs. [8] In the past, a variety of other applications have used other systems. Some added an additional two slashes.
Absolute URLs are URLs that start with a scheme [5] (e.g., http:, https:, telnet:, mailto:) [6] and conform to scheme-specific syntax and semantics. For example, the HTTP scheme-specific syntax and semantics for HTTP URLs requires a "host" (web server address) and "absolute path", with optional components of "port" and "query".
A bare URL is a URL cited as a reference for some information in an article without any accompanying information about the linked page. In other words, it is just the text out of the URL bar of a web browser copied and pasted into the Wiki text, inserted between <ref></ref> tags or simply provided as an external link, without title, author, date, or any of the usual information necessary for a ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 29 November 2024. Protocol and file format to list the URLs of a website For the graphical representation of the architecture of a web site, see site map. This article is written like a manual or guide. Please help rewrite this article and remove advice or instruction. (March 2021) Sitemaps is a protocol ...