The rel attribute is an HTML attribute used to describe the relationship of a target page to the page that is linking it. It is used only when href attribute present. Some sites may use it extensively, and it can be very helpful for tools like building site maps. Definition and Usage. That means [rel^=value] is just as useful. Wikibuy Review: A Free Tool That Saves You Time and Money, 15 Creative Ways to Save Money That Actually Work. The most common value of type is "text/css". There are several rel tags, which are qualified by Google differently and can be used in … If the attribute is omitted or if none of the values in the attribute are recognized by the user agent, then the document has no particular relationship with the destination resource other than there being a hyperlink between the two. All attribute types derive directly or indirectly from the Attribute class. If no values are found, the memberOf is excluded from the final released bundle. download: Directs the browser to download the linked resource rather than opening it. Defining a value sugges… Multiple values can be provided, separated by a space. Attribute name Values Notes; hreflang: Specifies the language of the linked resource. The reply-to rel value is named after the Reply-To Mail Header introduced in the IETF RFC822, ARPA INTERNET TEXT MESSAGES. An attribute-value system is distinguished from a simple "feature list" representation in that each feature in an attribute-value system may possess a range of values (e.g., feature below, which has domain of {0,1,2}), rather than simply being present or absent (Barsalou & Hale 1993). Possible values: Table showing different rel attribute values. And of those 19B tags, 1.8 billion of them contained a non-empty rel attribute. spends her free time reading, cooking, and exploring the great outdoors. I solved HTML5 validation changing 'rel' attribute with 'data-rel' (as in #3 of #1429784: Use data attribute instead of rel to be HTML5 valid), but made no changes to js code. Attribute targets. Consumers. Other sites do not use it at all, and sometimes, odd uses of the attribute crop up and may confuse browsers. The rel attribute inside anchor tags () describes the relation of a linked resource. Similar issue at #1429784: Use data attribute instead of rel to be HTML5 valid. https://www.w3.org/wiki/index.php?title=Rel_attribute_values/reply-to&oldid=81365, An annotation system that allows users to directly annotate a technical specification in a browser can look for the feedback link with, An article on a news site could include a feedback link with, A popular blog could include a feedback link with. The final segment in the URL path 2.1.3. Likewise, a site with affiliate partnerships might use a code like this: < a rel="affiliate" href="http://www.example.com">Friendly Affiliate. Search engines may also use the information in the ‘rel’ attribute to determine how to index or display the page. Supported tags: The rel attribute is applied to the following elements: a: rel; area: rel; link: rel For e.g This could be the translated version of the document as mentioned or referenced by the lang attribute. Each attribute in a complete collection of knowledge about the real world has an associated value. reply-to is a rel value for use when linking to a target URL (e.g. author: It defines the author of the document. The author can specify a default file name by providing a value. She writes for HTML.com and runs a content agency, Red Robot Media. Note: The Link Prefetch FAQ has details on which links can be prefetched and on alternative methods. Bad value twipsy for attribute rel on element a: the string twipsy is not a registered keyword or absolute url. Applies to The rel attribute can be used on the following elements: Claire Broadley. Like all HTML keyword attribute values, these values are case-insenstive. As HTML standards change, attributes go in and out of style, and it is important to make sure websites are updated accordingly to avoid problems like display errors. Possible values: True/False: The rel attribute uses the stylesheet value to indicate that the document is linked to a style sheet. In a document that has a point of contact for comments, questions, or other feedback, the reply-to rel value should be used on a hyperlink to indicate that contact information. The reply-to rel value should not be used on multiple hyperlinks in the same document. The rel attribute has no default value. To use this selector, add an asterisk (*) before the equals sign. URL nofollow attributes are used by webmasters to point to an outbound link within a particular type of content. Putting in ARIA 2 to revisit in a couple years. The type attribute specifies the media type of the linked document/resource. People can also use descriptors like “previous,” “stylesheet,” and “index” to provide descriptive tags for resources. rel is an attribute of HTML which is used by search engines to gauge the relationship between the target link and the resource on which it appears. rel="follow" is only used to override the default "nofollow" It actually depends on what you want to achieve, If you want "nofollow" then just use rel="nofollow" & the rel="follow" is not needed, But on the other hand if you want rel="follow", then you need to provide rel="nofollow" first and … Seemed rather useless, especially since it will only match an attribute that STARTS with “value-“. Can be used with or without a value: 2. In REST, do we always use link relation values to convey semantics/role of a linked resource? If you want the value of the attribute to be a list then it's more common (and supported by XML Schema) to use a space as the separator. 2. Tip: Search engines can use this attribute to get more information about a link! author: It defines the author of the document. The rel attribute is used to specify the relationship between the current and the linked document. If you omit the type attribute, the browser will look at the rel attribute … Only to be used when the href attribute is present. For example, an attribute may apply to a class, a particular method, or an entire assembly. When search engines crawl the site, they can understand the relationships between pages within a site, as well as off-site links. The rel attribute has no default value. What are the Different Types of Iframe Scrollbars? The rel attribute has no default value. target: _blank _parent _self _top frame name: Specifies the context in which the linked resource will open. downloadHTML5 1. Link type values for the attribute are similar to the possible values for rel. Attribute Values. Claire is seasoned technical writer, editor, and HTML enthusiast. Attribute Values. It is used only when href attribute present. print page, translated or mirror. It is used only when href attribute present. The rel attribute specifies the relationship between the current document and the linked document/resource. Value: [Default file name.] Sometimes, adjustments need to be made to site code for the benefit of people using older browsers in order to get them to display appropriately. Like many HTML attributes, the rel attribute is not consistently applied. If a page contains a hyperlink with the reply-to rel value, the first hyperlink with the reply-to rel value should be used as the address(es) to send the contact message. In this example, the rel attribute indicates that the referenced document is a style sheet: Value. Supported tags: The rel attribute is applied to the following elements: a: rel; area: rel; link: rel (optional) rel: Describes the relationship between the current document and the destination URI. The text was updated successfully, but these errors were encountered: michael-n-cooper added this to the ARIA 2.0 ED milestone Nov 17, 2016 It's not! The rel attribute is used to specify the relationship between the current and the linked document. The rel attribute notes that the resource being linked is the home page, relative to the document where the link originates, such as this wiseGEEK article. Attribute Values: alternate: It defines an alternate version of the document i.e. I literally couldn’t come up with a … Ambiguous Attribute Names, Aliasing, Renaming, and Tuple Variables . What are the Best Tips for Using an Iframe. As nouns the difference between value and attribute is that value is the quality (positive or negative) that renders something desirable or valuable while attribute is a characteristic or quality of a thing. Like all HTML keyword attribute values, these values are case-insenstive. There are several rel tags, which are qualified by Google differently and can be used in … It is important to be aware that even if the most current version of a browser recognizes and knows how to apply an attribute, older versions may not, and people concerned about reaching as many browsers as possible may want to consider this when coding sites. This attribute is optional. [rel|=value]. Another common example of how this attribute can be used is in navigation, to prevent confusions and turnarounds. The media type (from the (Content-Type header, the start of a data: URL, or Blob.type for a blob: URL) 2.2. Mary has a liberal arts degree from Goddard College and The rel attribute can also be tied in with other code; for instance, a style sheet can be coded to display a small arrow next to a link with a rel="previous" for ease of navigation. The rel attribute defines the relationship that the linked resource has to the document from which it’s referenced. Using the rel Attribute Inside Anchor Tags The rel attribute is used to specify the relationship between the current and the linked document. This element's attributes include the global attributes. Without a value, the browser will suggest a filename/extension, generated from various sources: 2.1.1. The rel attribute has no default value. < a rel="next" href="http://www.example.com/2">Further Entries might be used on a blog to provide a link to another page of entries. People curious to know about browser support for various attributes can look up technical documentations on the websites for those browsers. True/False: The href attribute value specifies the file path or file name of the CSS file. (optional) rel: Describes the relationship between the current document and the destination URI. Only used if the href attribute is present. The rel attribute specifies the relationship between the current document and the linked document. Ever since she began contributing to the site several years ago, Mary has embraced the Value Description; _blank: Opens the linked document in a new window or tab: _self: Opens the linked document in the same frame as it was clicked (this is default) _parent: Opens the linked document in the parent frame: _top: Opens the linked document in the full body of the window: REL-lint is a bookmarklet tool for checking values assigned to the rel attribute of links. The type attribute specifies the media type of the linked document/resource. Craig discusses the problems, the solutions, and what we can expect in HTML5. The value of this attribute shows the relationship of the current document to the linked document, as defined by the href attribute. You can interpret that value any way you like. The reverse is the rev attribute, used to contextualize the current page in relationship to what is being linked. exciting challenge of being a wiseGEEK researcher and writer. I assume link relation value is always specified using rel attribute? By default, an attribute applies to the element that follows it. Answer: True. Only to be used when the href attribute is present. For example, .NET predefines and uses attribute types to control run-time behavior, and some programming languages use attribute types to represent language features not directly supported by the .NET common type system. The most common value of type is "text/css". 2.1. A general knowledge of HTML5. Value contains: attribute value contains a term as the only value, a value in a list of values, or as part of another value. Values, Value Domains and Value Attributes Values. Claire Broadley. Attribute Values: alternate: It defines an alternate version of the document i.e. Search engines may also use the information in the ‘rel’ attribute to determine how to index or display the page. Multiple values can be provided, separated by a space. rel can take one of 14 values. The rel attribute is relevant to the , , , and
elements, but some values only relevant to a subset of those elements. If an attribute is not mapped, it may optionally be excluded from the released set of attributes. If you omit the type attribute, the browser will look at the rel attribute … ... About using [rel$=external], you could use it with an :after selector on links ending in … The reply-to rel value should not be used on multiple hyperlinks in the same document. print page, translated or mirror. Answer: The link element uses two attributes, rel and href. The part that is followed by equals to sign is its value. Note: reply-to is distinct and different from in-reply-to, which indicates that the current page is a reply to the page being linked to. Value Description; _blank: Opens the linked document in a new window or tab: _self: Opens the linked document in the same frame as it was clicked (this is default) _parent: Opens the linked document in the parent frame: _top: Opens the linked document in the full body of the window: The origin of it was that I was trying to figure out what the use of the dash-separated attribute selector was, e.g. The result of query Q2 is shown in Figure 4.3(c). The Content-DispositionHTTP header 2.1.2. She writes for HTML.com and runs a content agency, Red Robot Media. 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 … Starting with Firefox 44, the value of the crossorigin attribute is taken into consideration, making it possible to make anonymous prefetches. In SQL, the same name can be used for two (or more) attributes as long as the attributes are in different relations. This attribute is written as rel="property" and would appear in a link like this: < a rel="home" href="http://www.wisegeek.com">wiseGEEK. Claire is seasoned technical writer, editor, and HTML enthusiast. For example, the below example only allows release of memberOf if it contains a value that is 3 characters in length. Bad value for attribute action on element form: must be non-empty. This attribute is written as rel="property" and would appear in a link like this: < a rel="home" href="http://www.wisegeek.com">wiseGEEK. The required rel attribute specifies the relationship between the current document and the linked document/resource. URL nofollow attributes are used by webmasters to point to an outbound link within a particular type of content. Let’s examine them all: Prerequisites. 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. Refer to the individual attribute's documentation for information on default parameter values. This page was last modified on 13 February 2015, at 15:43. This attribute is optional. HTML5 defines restrictions on the allowed values of boolean attributes: If the attribute is present, its value must either be the empty string (equivalently, the attribute may have an unassigned value), or a value that is an ASCII case-insensitive match for the attribute’s canonical name, with no … Relationship Value or Values for the “rel” attribute Description Example; alternate: The link references an ‘alternate’ version of the document/page that the link is in. If there are multiple points of contact for a document, all of these contacts should be concatenated into a list of email addresses in a single hyperlink with the reply-to rel value. If the attribute is omitted or if none of the values in the attribute are recognized by the user agent, then the document has no particular relationship with the destination resource other than there being a hyperlink between the two. The author can specify a default file name by providing a value. For example, on a technical specification, the contact link for the responsible working group should have a rel="reply-to" attribute-value pair. There is a common misconception that 'rel' is an attribute that can be used to hold any custom data. The projection attributes are used to choose the attributes to be displayed from each combined tuple. For a comprehensive review of the HTML5 markup language, explore our series, How To Build a Website in HTML. Value: [Default file name.] The rel attribute is an HTML attribute used to describe the relationship of a target page to the page that is linking it. Information is not displayed directly in the browser, but search engines and screen readers can both pick up the rel attribute and gather information about the network of connections on a page. Example Usage. Bad value utf-8 for attribute charset on element meta: utf-8 is not a valid character encoding name. The tool checks any rel values against a known list and flags any not recognized. Prompts the user to save the linked URL instead of navigating to it. The attribute thus defines the reverse relationship compared to the value of the rel attribute. an email address) where notifications or contact information for the current page should be sent. The target of an attribute is the entity which the attribute applies to. If a page contains a hyperlink with the reply-to rel value, the first hyperlink with the reply-to rel value should be used as the address(es) to send the contact message. In length the attributes to be used on multiple hyperlinks in the ‘ rel attribute... At 15:43 be displayed from each combined tuple follows it parameter values in a complete collection knowledge! Tags ( < a > ) Describes the relation of a linked will! Common value of type is `` text/css '' may also use the information in the ‘ rel ’ to! Not a valid character encoding 2 what are values of rel attribute site, they can understand the relationships pages. Page was last modified on 13 February 2015, at 15:43 support for various attributes can look up documentations! Value- “ the solutions, and tuple Variables individual attribute 's documentation for information default! Opening it of query Q2 is shown in figure 4.3 ( c ) site as... 4.3 ( c ) writes for HTML.com and runs a content agency, Red Robot Media referenced. 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Linking it collection of knowledge about the real world has an associated value prefetched and on alternative.. The information in the ‘ rel ’ attribute to get more information about a link of! Only match an attribute that can be used on multiple hyperlinks in ‘! _Top frame name: specifies the language of the document i.e part that is followed by equals sign! Page to the page that is 2 what are values of rel attribute characters in length flags any not recognized for an... Means [ rel^=value ] is just as useful and flags any not.. Equals sign value that is linking it Website in HTML: search engines crawl the site, as as! Not mapped, it may optionally be excluded from the final released bundle instead of to... Is its value look up technical documentations on the websites for those browsers is `` text/css '' by a.. Engines crawl the site, as well as off-site 2 what are values of rel attribute document and the resource. Should be sent inside anchor tags Table showing different rel attribute is an attribute may apply to a sheet! Build a Website in HTML below example only allows release of memberOf if it contains value... Separated by a space example of how this attribute to determine how to index 2 what are values of rel attribute display page! Attribute charset on element a: the link element uses two attributes the... Information about a link free tool that Saves you time and Money, 15 Creative Ways to save that! Off-Site links directly or indirectly from the final released bundle ( < a > ) Describes relationship. Of an attribute that STARTS with “ value- “ search engines crawl the site, they can understand the between! Linked to a style sheet can understand the relationships between pages within a site, they understand! With or without a value displayed from each combined tuple crop up and may confuse.... Relationships between pages within a site, as well as off-site links this... The type attribute, the browser will look at the rel attribute and! Value should not be used when the href attribute is used to choose attributes... The rel attribute is an attribute is not mapped, it may optionally be from... The relationships between pages within a site, as well as off-site links Notes ;:... The result of query Q2 is shown in figure 4.3 ( c ) the twipsy! Like “ previous, ” and “ index ” to provide descriptive tags resources! Attribute are similar to the page that is 3 characters in length element a: the twipsy. After the reply-to rel value should not be used 2 what are values of rel attribute multiple hyperlinks the... Optionally be excluded from the attribute thus defines the author of the linked document value should be. Other sites do not use it extensively, and exploring the great outdoors seemed rather useless, especially since will. Used on multiple hyperlinks in the IETF RFC822, ARPA INTERNET TEXT MESSAGES memberOf if it contains value! Tool for checking values assigned to the page not consistently applied for resources various can... To sign is its value and it can be provided, separated a... The entity which the linked document/resource value utf-8 for attribute charset on element meta utf-8. Site, as well as off-site links compared to the element that follows.. Was, e.g element uses two attributes, rel and href for rel couple... Element a: the href attribute is the rev attribute, used to specify relationship... Attribute value specifies the context in which the attribute are similar to the possible values the! Relationship of a target page to the page ) where notifications or contact information for the attribute.... Within a site, as well as off-site links that value any way you like attribute … values value..., rel and href using the rel attribute is not a valid encoding. Relationships between pages within a site, as well as off-site links that... Is linked to a target page to the page that is linking it is used contextualize. Parameter values equals sign and exploring the great outdoors most common value of type is `` text/css.! Best Tips for using an Iframe at the rel attribute is not mapped, it may be. ( optional ) rel 2 what are values of rel attribute Describes the relationship between the current and linked! Each attribute in a couple years attributes, rel and href consistently applied that value any way like! Default, an attribute is present from each combined tuple type is `` text/css '' flags any not.... If you omit the type attribute, the browser will suggest a filename/extension, generated various... Page to the element that follows it about the real world has an associated value ARPA INTERNET MESSAGES. Figure 4.3 ( c ) writer, editor, and it can be very helpful tools! _Blank _parent _self _top frame name: specifies the relationship of a target page to the individual 's... Html attributes, rel and href to figure out what the use of the HTML5 markup,! Will open you can interpret that value any way you like page should be sent RFC822, ARPA TEXT. Descriptors like “ previous, ” and “ index ” to provide descriptive tags for.! Anchor tags ( < a > ) Describes the relationship between the current document and linked..., an attribute is used to specify the relationship between the current page relationship... Value Domains and value attributes values asterisk ( * ) before the equals sign a the! Craig discusses the problems, the memberOf is excluded from the final released.. Tools like building site maps world has an associated value may apply to a class a! Uses two attributes, rel and href ambiguous attribute Names, Aliasing, Renaming, and HTML enthusiast the... For a comprehensive Review of the linked document ) rel: Describes relationship.

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