Plugin: duckduckgo
Author: Jon
Included in ikiwiki: yes
Enabled by default: no
Included in goodstuff: no
Currently enabled: no

This plugin adds a search form to the wiki, using DuckDuckGo's site search.

DuckDuckGo is asked to search for pages in the domain specified in the wiki's url configuration parameter. Results will depend on whether DuckDuckGo has indexed the site, and how recently.

By comparison the search plugin offers full text search of only the wiki, but requires that a search engine be installed on your site.