When used with the "Redirect category shell" (Rcat shell) template:
This page is a redirect. The following categories are used to track and monitor this redirect:
From a shortcut: This is a redirect from a shortcut in any namespace to a page in any namespace.
Shortcuts are wikilinked on community pages, talk pages, and edit summaries, but not in mainspace articles.
When appropriate, protection levels are automatically sensed, described and categorized.
Template {{Redirect category shell}} may be used to add one or more rcat templates, along with their parameters and categories, to a redirect. For more information, see the documentation page below.
From a shortcut: This is a redirect from a shortcut in any namespace to a page in any namespace.
Shortcuts are wikilinked on community pages, talk pages, and edit summaries, but not in mainspace articles.
This template is used on 38,000+ pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them.
Any breaking changes to this template, including moving it or nominating it for deletion, must be communicated in advance to Twinkle's users and maintainers at Wikipedia talk:Twinkle. The standard installation of Twinkle relies on this template. Thank you.
Template {{This is a redirect}} may also be used to add this and up to seven appropriate rcats to a redirect.
Use this rcat on any redirect from a Wikipedia (WP:, MOS:, etc.) shortcut. Shortcuts are historically reserved for Wikipedia project pages, their discussion and help pages, and categories, and they are now used in all namespaces. If the redirect is a shortcut to the template namespace and the redirect itself is in any namespace, then use {{R from template shortcut}} instead of {{R from shortcut}}. It is the target page that determines this, so if a redirect is in the template namespace and targets a page in any other namespace, then it is not a template shortcut and should be tagged with this rcat, {{R from shortcut}}.