Translations:Help:CirrusSearch/292/en

Any search with no namespace specified (or prefix specified) searches your default search domain, settable on any search-results page, i.e. settable at $ss. The default search domain is commonly reset by power users to All namespaces, i.e. the entire wiki, but if this occurs for a bare regexp search, then on a large wiki it will probably incur an HTML timeout before completing the search.