Wikipedia has five kinds of top-of-page messages that can be used to convey information or announcements to readers and editors.
The "Sitenotice", found at MediaWiki:Sitenotice, is displayed at the top of all pages for all logged-in users, and for anonymous users if the following message is empty.
MediaWiki:Anonnotice can be used to display information only to anonymous/IP users, not logged-in users. Alternatively, by 'blanking' the anonnotice and replacing it with nothing (not even a space or empty paragraph!), then the sitenotice can be used as a "logged-in users only" notice to display information only to editors. When "Anonnotice" contains nothing, no notice is shown to anonymous users. When it contains "-" it disables the message in favour of Sitenotice. If it contains anything else, it will be rendered to anonymous users instead of the Sitenotice (including a "hide" button).
The CentralNotice, found at meta:Special:CentralNotice, is an extension which can display banners at the top of a select group of Wikimedia sites simultaneously.
Geonotice, at Wikipedia:Geonotice, allows location-specific notices – and is a candidate for integration into MediaWiki.
This template must be followed by a complete and specific description of the request, so that an editor unfamiliar with the subject matter could complete the requested edit immediately.
Edit requests to fully protected pages should only be used for edits that are either uncontroversial or supported by consensus. If the proposed edit might be controversial, discuss it on the protected page's talk page before using this template. When the request has been completed or denied, please add the |answered=yes parameter to deactivate the template.
This template must be followed by a complete and specific description of the request, so that an editor unfamiliar with the subject matter could complete the requested edit immediately.
Edit requests to fully protected pages should only be used for edits that are either uncontroversial or supported by consensus. If the proposed edit might be controversial, discuss it on the protected page's talk page before using this template. When the request has been completed or denied, please add the |answered=yes parameter to deactivate the template.
Requesting a watchlist notice to run from 28 December to 3 January:
(Edited the notice above, I made a mistake)
If possible, I would like to request that it might be run from the 27th or from later today to 3 Jan, as people might check Wikipedia less during the holidays. DoctorWhoFan91 (talk) 08:31, 26 December 2024 (UTC)[reply]
Done. I un-bolded one of the links. I set this to run from Dec 27 0:00 UTC to Jan 2 23:59 UTC (7 days). 7 days seems to be the standard maximum time. –Novem Linguae (talk) 22:01, 26 December 2024 (UTC)[reply]
This template must be followed by a complete and specific description of the request, so that an editor unfamiliar with the subject matter could complete the requested edit immediately.
Edit requests to fully protected pages should only be used for edits that are either uncontroversial or supported by consensus. If the proposed edit might be controversial, discuss it on the protected page's talk page before using this template. When the request has been completed or denied, please add the |answered=yes parameter to deactivate the template.
Please post the following watchlist message from January 1 to January 7, 2025:
Sign up here for the month-long Guild of Copy Editors' January copy-editing drive. Have fun, improve articles, and earn barnstars!