User:Jongfeli/sandbox

Reserved for site admins
''The namespaces in 100-199 are reserved for site-specific namespaces, and should not be used by extensions. A few extensions have apparently used this area, so be careful using them. If you're writing a new extension you should never hardcode any namespaces inside the 100-199 range.''

Semantic MediaWiki, Semantic Forms, and Semantic Drilldown
Not completely documented yet.

Wikia
300 - 399. Wikia has been seen using namespaces in this range for its custom extensions and configurations. To avoid conflicts in case Wikia extensions are ported to work outside of Wikia it would be best to avoid defining new extensions that use this range. Wikia alters the namespaces for some extensions used on its own wikis. Please also take these into account while coming up with new namespace numbers to use in new extensions.

ID 500-599
Some sites try to make use of the 500-599 range for site namespaces. To avoid conflicting with those sites it would be a good idea to avoid this range while creating new extensions.

ID 1000+
The 1000+ range starts to get fairly high, and it's a possible spot site's may attempt to use to.

Hidden pages
HiddenPages requires custom namespaces to be added manually. Thus a specific sequence cannot be registered. Nonetheless, the extension recommends using namespace numbers 1000 and up.

ID 3000+
So far no known extensions have defined default namespaces in the 3000+ range. For now it would be best to avoid using this range to give sites room to define their custom namespaces without fear of conflict.