MOVEDMESSAGE is set to inform users of the new location.
For scheduled downtime & temporary maintenance it is better to use the read-only skin mode of the TopMenuSkin or PatternSkin instead of this MovedSkin. For this, define a BROADCASTMESSAGE setting and a Set READONLYSKINMODE = 1 setting in Main.TWikiPreferences.
 
MovedSkin.zip in your twiki installation directory. Content:             | File: | Description: | 
|---|---|
 data/TWiki/MovedSkin.txt  |         Skin topic | 
 pub/TWiki/MovedSkin/*.png  |         Screenshots | 
 templates/view.moved.tmpl  |         Skin template file | 
 lib/TWiki/Contrib/MovedSkin.pm  |         Skin Perl module | 
   * Set MOVEDMESSAGE = __NOTE:__ The %WIKITOOLNAME% site has been moved to a new location. The page you are trying to access is now at: %BR%%BR% http://twiki.example.com/do/view/%WEB%/%TOPIC%. %BR% Please update your bookmarks. %BR%%BR% Questions? Ask %WIKIWEBMASTER%
The view/%WEB%/%TOPIC% makes sure that the user ends up the new location of the current page.
If you want the page to redirect automatically to the new site you can add a meta tag to the MOVEDMESSAGE setting. This example redirects after 5 seconds:
<meta http-equiv="refresh" content="5;url=http://twiki.example.com/do/view/%WEB%/%TOPIC%" />
2. Test the yellow moved message box:   * Set SKIN = moved
TWikiSkins has details on skin activation.
| Skin Author: |  TWiki:Main.PeterThoeny | 
| Copyright: |  © 2012 Wave Systems Corp. © 2012-2018 TWiki:Main.PeterThoeny © 2012-2018 TWiki:TWiki.TWikiContributor  | 
| Sponsor: |  Wave Systems Corp. | 
| License: |  GPL (GNU General Public License | 
| Description: | Inform users that a TWiki site has moved to a new location | 
| Screenshot: |     | 
| Preview: | Preview with this topic | 
| Base Name: | moved | 
| Skin Version: | 2018-07-05 | 
| Change History: | |
| 2018-07-05: |  TWikibug:Item7841 | 
| 2016-01-09: |  TWikibug:Item7708 | 
| 2012-12-16: |  TWikibug:Item7085 | 
| Dependencies: | None | 
| Skin Home: |  http://TWiki.org/cgi-bin/view/Plugins/MovedSkin | 
| Feedback: |  http://TWiki.org/cgi-bin/view/Plugins/MovedSkinDev | 
| Appraisal: |  http://TWiki.org/cgi-bin/view/Plugins/MovedSkinAppraisal |