HTML <a> rel属性
例
rel属性を持つリンク:
<a rel="nofollow" href="http://www.functravel.com/">Cheap Flights</a>
定義と使用法
このrel
属性は、現在のドキュメントとリンクされたドキュメントの間の関係を指定します。
href
属性が存在する場合にのみ使用されます。
ヒント:検索エンジンはこの属性を使用して、リンクに関する詳細情報を取得できます。
ブラウザのサポート
Attribute | |||||
---|---|---|---|---|---|
rel | Yes | Yes | Yes | Yes | Yes |
構文
<a rel="value">
属性値
Value | Description |
---|---|
alternate | Provides a link to an alternate representation of the document (i.e. print page, translated or mirror) |
author | Provides a link to the author of the document |
bookmark | Permanent URL used for bookmarking |
external | Indicates that the referenced document is not part of the same site as the current document |
help | Provides a link to a help document |
license | Provides a link to licensing information for the document |
next | Provides a link to the next document in the series |
nofollow | Links to an unendorsed document, like a paid link. ("nofollow" is used by Google, to specify that the Google search spider should not follow that link) |
noopener | Requires that any browsing context created by following the hyperlink must not have an opener browsing context |
noreferrer | Makes the referrer unknown. No referer header will be included when the user clicks the hyperlink |
prev | The previous document in a selection |
search | Links to a search tool for the document |
tag | A tag (keyword) for the current document |
❮HTML<a>タグ