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. The required rel attribute specifies the relationship between the current document and the linked document/resource. Note: The Link Prefetch FAQ has details on which links can be prefetched and on alternative methods. Defining a value sugges… Attribute Values. 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 tool checks any rel values against a known list and flags any not recognized. The rel attribute has no default value. For example, the below example only allows release of memberOf if it contains a value that is 3 characters in length. The rel attribute is an HTML attribute used to describe the relationship of a target page to the page that is linking it. The reverse is the rev attribute, used to contextualize the current page in relationship to what is being linked. Claire Broadley. print page, translated or mirror. reply-to is a rel value for use when linking to a target URL (e.g. In SQL, the same name can be used for two (or more) attributes as long as the attributes are in different relations. The rel attribute has no default value. All attribute types derive directly or indirectly from the Attribute class. URL nofollow attributes are used by webmasters to point to an outbound link within a particular type of content. The reply-to rel value should not be used on multiple hyperlinks in the same document. Claire is seasoned technical writer, editor, and HTML enthusiast. For example, an attribute may apply to a class, a particular method, or an entire assembly. 2. If you omit the type attribute, the browser will look at the rel attribute … The media type (from the (Content-Type header, the start of a data: URL, or Blob.type for a blob: URL) 2.2. Other sites do not use it at all, and sometimes, odd uses of the attribute crop up and may confuse browsers. Bad value for attribute action on element form: must be non-empty. downloadHTML5 1. Attribute targets. Claire is seasoned technical writer, editor, and HTML enthusiast. Answer: The link element uses two attributes, rel and href. I assume link relation value is always specified using rel attribute? 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. The result of query Q2 is shown in Figure 4.3(c). Search engines may also use the information in the ‘rel’ attribute to determine how to index or display the page. Value contains: attribute value contains a term as the only value, a value in a list of values, or as part of another value. Only to be used when the href attribute is present. Can be used with or without a value: 2. Consumers. For e.g This could be the translated version of the document as mentioned or referenced by the lang attribute. The origin of it was that I was trying to figure out what the use of the dash-separated attribute selector was, e.g. It is used only when href attribute present. Applies to The rel attribute can be used on the following elements: 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. spends her free time reading, cooking, and exploring the great outdoors. 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 reply-to rel value is named after the Reply-To Mail Header introduced in the IETF RFC822, ARPA INTERNET TEXT MESSAGES. 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. She writes for HTML.com and runs a content agency, Red Robot Media. Like many HTML attributes, the rel attribute is not consistently applied. The rel attribute defines the relationship that the linked resource has to the document from which it’s referenced. Supported tags: The rel attribute is applied to the following elements: a: rel; area: rel; link: rel If an attribute is not mapped, it may optionally be excluded from the released set of attributes. Attribute Values. Table showing different rel attribute values. The target of an attribute is the entity which the attribute applies to. The rel attribute specifies the relationship between the current document and the linked document/resource. Bad value utf-8 for attribute charset on element meta: utf-8 is not a valid character encoding name. Attribute Values: alternate: It defines an alternate version of the document i.e. target: _blank _parent _self _top frame name: Specifies the context in which the linked resource will open. Values, Value Domains and Value Attributes Values. True/False: The href attribute value specifies the file path or file name of the CSS file. 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. 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. The most common value of type is "text/css". Possible values: The projection attributes are used to choose the attributes to be displayed from each combined tuple. The rel attribute is used to specify the relationship between the current and the linked document. 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 … Without a value, the browser will suggest a filename/extension, generated from various sources: 2.1.1. ... About using [rel$=external], you could use it with an :after selector on links ending in … This attribute is optional. The rel attribute is used to specify the relationship between the current and the linked document. exciting challenge of being a wiseGEEK researcher and writer. 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. Starting with Firefox 44, the value of the crossorigin attribute is taken into consideration, making it possible to make anonymous prefetches. an email address) where notifications or contact information for the current page should be sent. There are several rel tags, which are qualified by Google differently and can be used in … Example Usage. If you omit the type attribute, the browser will look at the rel attribute … 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 … (optional) rel: Describes the relationship between the current document and the destination URI. 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 type attribute specifies the media type of the linked document/resource. 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. 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. Tip: Search engines can use this attribute to get more information about a link! What are the Best Tips for Using an Iframe. Value: [Default file name.] People can also use descriptors like “previous,” “stylesheet,” and “index” to provide descriptive tags for resources. Value: [Default file name.] Using the rel Attribute Inside Anchor Tags Let’s examine them all: Prerequisites. author: It defines the author of the document. A general knowledge of HTML5. This attribute is written as rel="property" and would appear in a link like this: < a rel="home" href="http://www.wisegeek.com">wiseGEEK. Search engines may also use the information in the ‘rel’ attribute to determine how to index or display the page. It is used only when href attribute present. The rel attribute is used to specify the relationship between the current and the linked document. She writes for HTML.com and runs a content agency, Red Robot Media. 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. Multiple hyperlinks in the same document refer to the page that is followed by equals to sign its... Not be used when the href attribute is the entity which the attribute thus defines the is. Refer to the element that follows it allows release of memberOf if it contains value! For a comprehensive Review of the document as mentioned or referenced by lang. Value should not be used when the href attribute is present particular method, an. The solutions, and it can be very helpful for tools like building site maps tags for.! 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