Link Relations Last Updated 2011-11-01 This registry is also available in plain text. Registries included below * Link Relation Types * Link Relation Application Data Link Relation Types Registration Procedures Expert Review Reference [RFC5988] Relation Name Description Reference Notes Refers to a alternate substitute for this [http://www.w3.org/TR/html5/links.html#link-type-alternate] context appendix Refers to an [http://www.w3.org/TR/1999/REC-html401-19991224] appendix. Refers to a collection of archives records, documents, [http://www.w3.org/TR/2011/WD-html5-20110113/links.html#rel-archives] or other materials of historical interest. author Refers to the [http://www.w3.org/TR/html5/links.html#link-type-author] context's author. Gives a permanent bookmark link to use for [http://www.w3.org/TR/html5/links.html#link-type-bookmark] bookmarking purposes. A "canonical" URI is the preferred version of a set of URIs with highly similar In http://www.mattcutts.com/blog/canonical-link-tag/ content. It is and http://gregable.com/2009/02/relcanonical.html the canonical intended to help [http://www.google.com/support/webmasters/bin/answer.py?answer=139394] authors state that Ask, Bing, Google, and Yahoo search engines when supported canonical URIs as of February, 2009. the same or highly similar similar content is available at different URIs. Refers to a chapter chapter in a collection of [http://www.w3.org/TR/1999/REC-html401-19991224] resources. contents Refers to a table of [http://www.w3.org/TR/1999/REC-html401-19991224] contents. Refers to a copyright copyright statement that [http://www.w3.org/TR/1999/REC-html401-19991224] applies to the link's context. Refers to a resource containing the most current recent item(s) in a [RFC5005] collection of resources. Refers to a resource describedby providing information [http://www.w3.org/TR/powder-dr/#assoc-linking] about the link's context. Refers to a resource whose available representations are This relation is for static resources. That is, an HTTP duplicate byte-for-byte [RFC6249] GET request on any duplicate will return the same identical with the representation. It does not make sense for dynamic or corresponding POSTable resources and should not be used for them. representations of the context IRI. Refers to a resource edit that can be used to [RFC5023] edit the link's context. Refers to a resource that can be used to edit-media edit media associated [RFC5023] with the link's context. Identifies a related resource that is enclosure potentially large and [RFC4287] might require special handling. An IRI that refers to the furthest This relation type registration did not indicate a first preceding resource in [RFC5988] reference. Originally requested by Mark Nottingham in a series of December 2004. resources. glossary Refers to a glossary [http://www.w3.org/TR/1999/REC-html401-19991224] of terms. Refers to help context-sensitive [http://www.w3.org/TR/html5/links.html#link-type-help] help. Refers to a hub that enables registration hub for notification of [http://pubsubhubbub.googlecode.com] This relation type was requested by Brett Slatkin. updates to the context. Refers to an icon icon representing the [http://www.w3.org/TR/html5/links.html#link-type-icon] link's context. index Refers to an index. [http://www.w3.org/TR/1999/REC-html401-19991224] An IRI that refers to the furthest This relation type registration did not indicate a last following resource in [RFC5988] reference. Originally requested by Mark Nottingham in a series of December 2004. resources. Points to a resource containing the latest latest-version (e.g., current) [RFC5829] version of the context. Refers to a license For implications of use in HTML, see: license associated with this [RFC4946] http://www.w3.org/TR/html5/links.html#link-type-license context. Refers to further information about the link's context, expressed as a LRDD ("Link-based Resource Descriptor Document") resource. See [RFC6415] for information about processing this relation type in lrdd host-meta documents. [RFC6415] When used elsewhere, it refers to additional links and other metadata. Multiple instances indicate additional LRDD resources. LRDD resources MUST have an "application/xrd+xml" representation, and MAY have others. Refers to a resource monitor that can be used to [RFC5989] monitor changes in an HTTP resource. Refers to a resource that can be used to monitor-group monitor changes in a [RFC5989] specified group of HTTP resources. Indicates that the link's context is a next part of a series, and [http://www.w3.org/TR/html5/links.html#link-type-next] that the next in the series is the link target. Refers to the next-archive immediately following [RFC5005] archive resource. Indicates that the context's original nofollow author or publisher [http://www.w3.org/TR/html5/links.html#link-type-nofollow] does not endorse the link target. Indicates that no noreferrer referrer information [http://www.w3.org/TR/html5/links.html#link-type-noreferrer] is to be leaked when following the link. This relation type registration did not indicate a reference. Requested by Joshua Kinberg and Robert Sayre. It is meant as a general way to facilitate acts of payment, and thus this specification makes no assumptions on the type of payment or transaction protocol. Examples may include a web page where donations are accepted or where goods and services are Indicates a resource available for purchase. rel="payment" is not intended payment where payment is [RFC5988] to initiate an automated transaction. In Atom accepted. documents, a link element with a rel="payment" attribute may exist at the feed/channel level and/or the entry/item level. For example, a rel="payment" link at the feed/channel level may point to a "tip jar" URI, whereas an entry/ item containing a book review may include a rel="payment" link that points to the location where the book may be purchased through an online retailer. Points to a resource containing the predecessor-version predecessor version [RFC5829] in the version history. Indicates that the prefetch link target should be [http://www.w3.org/TR/html5/links.html#link-type-prefetch] preemptively cached. Indicates that the link's context is a prev part of a series, and [http://www.w3.org/TR/html5/links.html#link-type-prev] that the previous in the series is the link target. Refers to the previous resource in previous an ordered series of [http://www.w3.org/TR/1999/REC-html401-19991224] resources. Synonym for "prev". Refers to the prev-archive immediately preceding [RFC5005] archive resource. related Identifies a related [RFC4287] resource. Identifies a resource replies that is a reply to [RFC4685] the context of the link. Refers to a resource that can be used to search search through the [http://www.opensearch.org/Specifications/OpenSearch/1.1] link's context and related resources. Refers to a section section in a collection of [http://www.w3.org/TR/1999/REC-html401-19991224] resources. Conveys an identifier self for the link's [RFC4287] context. Indicates a URI that When used in an Atom document, this relation type service can be used to [RFC5023] specifies Atom Publishing Protocol service documents by retrieve a service default. Requested by James Snell. document. Refers to the first start resource in a [http://www.w3.org/TR/1999/REC-html401-19991224] collection of resources. stylesheet Refers to a [http://www.w3.org/TR/html5/links.html#link-type-stylesheet] stylesheet. Refers to a resource serving as a subsection subsection in a [http://www.w3.org/TR/1999/REC-html401-19991224] collection of resources. Points to a resource successor-version containing the [RFC5829] successor version in the version history. Gives a tag (identified by the tag given address) that [http://www.w3.org/TR/html5/links.html#link-type-tag] applies to the current document. Refers to a parent up document in a [RFC5988] This relation type registration did not indicate a hierarchy of reference. Requested by Noah Slater. documents. Points to a resource version-history containing the [RFC5829] version history for the context. Identifies a resource via that is the source of [RFC4287] the information in the link's context. Points to a working working-copy copy for this [RFC5829] resource. Points to the versioned resource working-copy-of from which this [RFC5829] working copy was obtained. Link Relation Application Data Registration Procedures Expert Review Reference [RFC5988] Registry is empty.