Creates a top-level browsing context that is not an auxiliary browsing context if the hyperlink would create either of those, to begin with (i.e., has an appropriate, Creates an auxiliary browsing context if the hyperlink would otherwise create a top-level browsing context that is not an auxiliary browsing context (i.e., has ". It is a DOMString containing a space-separated list of link types indicating the relationship between the resource represented by the element and the current document. The path to the resource in the href attribute. rel The purpose of the HTML rel attribute is to define a relationship with another document specified by the value of the href attribute of the associated element. Get practical advice to start your career in programming! AlanHogan.com uses rel-shortlink in HTTP headers, HTML head, and the "shortlink" tag … A quick overview on how to take advantage of the preload and prefetch HTML attributes in order to optimize the loading of assets. href stands for hypertext reference. Remember, though, that you’re not limited to these alone: you can define your own rel attribute value, but it won’t be of much use to any web browser (although you might be able to use that information for some other purpose, for example, for querying or accessing the attribute’s value using JavaScript and the DOM). While this attribute defines the link as being a stylesheet, the interaction with other attributes and other key terms within the rel value impact whether the stylesheet is downloaded and/or used. The rel attribute is relevant to the , , , and

elements, but some values only relevant to a subset of those elements. If several icons are equally appropriate, the last one is used. Defining a value sugges… Alternate representations of the current document. The rel attribute allows you to specify multiple values separated by spaces. You could place the favorite icon elsewhere on the web server, but you’d have to amend the location specified in the href attribute accordingly. The rel attribute defines the relationship that the linked resource has to the document from which it’s referenced. The part that is followed by equals to sign is its value. The rel attribute specifies the relationship between the two documents. When the appropriate HTML Meta data profile is in use, the "home" type can be used alongside standard Link Types. Prior to Firefox 83 the crossorigin attribute was not supported for rel="icon" there is also an open issue for Chrome. August 30, 2014, 3:28am #1. Previous All HTML Attributes Next Definition and Usage For and elements, the href attribute specifies the URL of the page the link goes to. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. In HTML these are designated with the rel attribute on link, a, or area elements. The rel attribute in HTML The attribute in HTML is used to name the relationship between the linked document and the current document. A canonical link element is an HTML element that helps webmasters prevent duplicate content issues in search engine optimization by specifying the "canonical" or "preferred" version of a web page.It is described in RFC 6596, which went live in April 2012. 1.1.1 How is rel used; 1.1.2 What microformats use rel; 1.1.3 What is the proper use of the rel attribute; 1.1.4 What does a rel value really mean? Specifies or returns the relationship between the current document and the destination of an anchor or link. Note: Apple's iOS does not use this link type, nor the sizes attribute, like others mobile browsers do, to select a webpage icon for Web Clip or a start-up placeholder. The WHATWG document for HTML5 says that the rel attribute must contain values that are space-separated, and then it gives a table of allowed values.. Adam is SitePoint's head of newsletters, who mainly writes Versioning, a daily newsletter covering everything new and interesting in the world of web development. , , , , https://github.com/mdn/browser-compat-data, Assessment: Structuring a page of content, From object to iframe — other embedding technologies. . The rel attribute can also be used to indicate the license that applies to the content on the page, using rel=”license” href=”link-to-license.html”. How do I do that while leaving it in there for future reference? The relationship aspect of rel really becomes more rich in terms of context and orientation when the attribute is used to define how pages are related to each other. The type attribute is not needed as it's a text/css stylesheet, as that is the default value. the author indicates that the linked page is the homepage of the site. Note: The obsolete rev="made" is treated as rel="alternate". 1 "rel" attribute frequently asked questions. In this case, on and , if the rel attribute is absent, has no keywords, or if not one or more of the space-separated keywords above, then the element does not create any links. Only the data on the page can indicate this. Like all HTML keyword attribute values, these values are case-insenstive. Does anyone know some list of attributes useful for SEO and social? Can be used with or without a value: 2. For example . The attribute can be used by automated systems, or can be presented to a user in a different way. 2. The attribue's value must be a set of space-separated tokens. For example, in a sequence of pages that have a logical, linear flow, you can use the rel attribute to define the “next” and “prev” pages in the sequence. Specifies that the user agent should preemptively fetch the target resource and process it in a way that helps deliver a faster response in the future. Instead, it uses the non-standard apple-touch-icon and apple-touch-startup-image respectively. Specifies that the user agent should preemptively connect to the target resource's origin. The following markup shows a page that has one main style sheet and two alternatives: Note that when you use an alternate style sheet, you should also provide a title attribute that briefly describes the style—this will appear in the browser’s page style menu options, as shown here. Without a value, the browser will suggest a filename/extension, generated from various sources: 2.1.1. Here’s how the attribute should be used in accordance to specs: Indicates that the current document is a part of a series and that the next document in the series is the referenced document. The rel stands for "relationship", and is probably one of the key features of the element — the value denotes how the item being linked to is related to the containing document. The HTMLLinkElement.rel property reflects the rel attribute. The rel attribute has no default value. author: It defines the author of the document. Requires the use of the CORS protocol for cross-origin fetching. Permalink for the nearest ancestor section. Like all HTML keyword attribute values, these values are case-insensitive. Definition and Usage. In most cases, this resource will simply be “stylesheet“, which means, not surprisingly, “the referenced document is a style sheet.” Related to this value is “alternate”, which is used alongside the “stylesheet” value (rel="alternate stylesheet") to indicate that there’s another style associated with the page. Relevant to , , , and elements, the search keywords indicates that the hyperlink references a document whose interface is specially designed for searching in the current document, site, and related resources, providing a link to a resource that can be used to search. If the attribute is omitted or if none of the values in the attribute are supported, then the document has no particular relationship with the destination resource other than there being a hyperlink between the two. Rel version 3.007 now available! However, the HTML attribute is now in the latest W3C HTML specification, in section 4.8.4.7 Link type “nofollow”. Indicates that the main content of the current document is covered by the copyright license described by the referenced document. If the type attribute is set to application/opensearchdescription+xml the resource is an OpenSearch plugin that can be easily added to the interface of some browsers like Firefox or Internet Explorer. Like all HTML keyword attribute values, these values are case-insenstive. It is used only when href attribute present. Specifies that the user agent should preemptively fetch and cache the target resource as it is likely to be required for a followup navigation. If several icons are equally appropriate, the last one is used. The rel attribute defines the relationship between a linked resource and the current document. Refer to Microformats’ use of rel for more information about this. The most common use for the icon value is the favicon: If there are multiple s, the browser uses their media attribute, type, and sizes attributes to select the most appropriate icon. The Content-DispositionHTTP header 2.1.2. Tells to browser to preemptively fetch the script and store it in the document's module map for later evaluation. Search engines may also use the information in the ‘rel’ attribute to determine how to index or display the page. Tells the browser to preemptively perform DNS resolution for the target resource's origin. This element's attributes include the global attributes. Valid on , , , and , the supported values depend on the element on which the attribute is found. You will also need to specify: 1. With a nofollow command, the object in question is prevented from passing link authority. In this example, the rel attribute indicates that the referenced document is a style sheet: Refer to the syntax diagram for the acceptable predefined values. Optionally, the module's dependencies can be fetched as well. For example, the css file can be linked with the webpage as a “ stylesheet “. It specifies the relation between the tag and href. If there are multiple s, the browser uses their media attribute, type and sizes attributes to select the most appropriate icon. The required rel attribute specifies the relationship between the current … Supported tags: The rel attribute is applied to the following elements: a: rel; area: rel; link: rel; Example of HTML a rel Attribute Note: Although recognized, the synonym copyright is incorrect and must be avoided. The shortcut link type is often seen before icon, but this link type is non-conforming, ignored and web authors must not use it anymore. HTML rel Attribute Previous All HTML Attributes Next Definition and Usage. Once the list grows too big, we'll make a separate wiki page (rel-shortlink-examples-in-wild). By adding rel="home" to a hyperlink, a page indicates that the destination of that hyperlink is the homepage of the site in which the current page appears. Indicates that the current document's original author or publisher does not endorse the referenced document. If it's not a stylesheet of type text/css it is best to declare the type. It is used only when href attribute present. Valid on the , , , elements, the license value indicates that the hyperlink leads to a document describing the licensing information; that the main content of the current document is covered by the copyright license described by the referenced document. Easy to learn in the simple way with HTML 4. The rel attribute can also be used to indicate the license that applies to the content on the page, using rel=”license” href=”link-to-license.html”. A-Z HTML 4 tags and attribute explained with examples and output. He has a beard and will talk to you about beer and Star Wars, if you let him. Code, create, and learn together Code, collaborate, compile, run, share, and deploy HTML, CSS, JS and more online from your browser Sign up to code in HTML, CSS, JS Explore Multiplayer >_ Collaborate in real-time with your friends © 2005-2021 Mozilla and individual contributors. Specifies that the user agent must preemptively fetch and cache the target resource for current navigation according to the potential destination given by the. Note: Apple's iOS does not use this link type, nor the sizes attribute, like others mobile browsers do, to select a webpage icon for Web Clip or a start-up placeholder. Especially for larger sites, the process of canonicalization can be very important and lead to major SEO improvements. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. The referenced document is not part of the same site as the current document. Gives a tag (identified by the given address) that applies to the current document. 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