Help:検索エンジンによるインデックス化の制御
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There are a variety of ways in which MediaWiki allows users to attempt to control search engine indexing, commonly termed "noindexing", as the default position is that pages are indexed. Most of the methods rely on using the noindex HTML meta tag, which tells search engines not to index certain pages. Respecting the tag, or the robots.txt file, especially in terms of removing already indexed content, is up to the individual search engine, and in theory they may be ignored entirely.
制御の方法は以下の通り:
- Controlling an entire namespace, via MediaWiki software settings
- Controlling classes of pages, via MediaWiki:Robots.txt
- Controlling individual pages by adding the
__NOINDEX__magic word into them, either directly or using a template made to contain it. - Controlling pages by adding the
__NOINDEX__magic word into standard templates used in certain situations.
ソフトウェアの設定とrobots.txt
ソフトウェアの設定
Entire namespaces can be noindexed via $wgNamespaceRobotPolicies.
At the same time, __NOINDEX__ can be disabled in certain namespaces. This is controlled by the MediaWiki software setting $wgExemptFromUserRobotsControl, which defaults to $wgContentNamespaces.
$wgArticleRobotPolicies can be used to specify different policies for individual pages.
robots.txt による noindex
System message MediaWiki:Robots.txt can be used to noindex pages. Unlike the software settings, it can be directly edited.
NOINDEXマジックワード
個別のページ
Individual pages can be noindexed by adding the __NOINDEX__ magic word into that page. This can be done either directly or using a template designed to contain the magic word (eg {{NOINDEX}}); this can make use of the keyword easier to track.
Pages with the keyword are tracked by MediaWiki, and automatically categorized in a tracking category. The category name is determined by MediaWiki:Noindex-category.
Standard template noindexing
Standard templates can include the __NOINDEX__ keyword, thereby noindexing pages to which the templates are applied. A template used to flag a particularly sensitive type of page can then automatically noindex it.
INDEXマジックワード
個別のページ
Individual pages can override namespace noindexing by adding the __INDEX__ magic word into that page. Pages with the keyword are tracked by MediaWiki, and automatically categorized in a tracking category. The category name is determined by MediaWiki:Index-category. However, INDEX does not override noindexing via MediaWiki:Robots.txt. It does override $wgArticleRobotPolicies.
現在の問題点
- phab:T24251 – Magic word to remove page from internal MediaWiki search results
