404. That’s an error.

The requested URL /custom?q=%22EmacsNiftyTricks%22&client=google-coop-np&cof=FORID:13%3BAH:left%3BS:http://www.emacswiki.org/%3BCX:Emacs%2520Wiki%2520Search%3BL:http://www.emacswiki.org/emacs_rss.png%3BLH:43%3BLP:1%3BVLC:%23551a8b%3BDIV:%23cccccc%3B&cx=004774160799092323420:6-ff2s0o6yi&adkw=AELymgVgCrOxyNITKFR5ZtNyjURpXK2d0t2xztCML_XHP8u88685pQ_H6DA-jbUmZSC7IfeX-p0ZwAHzH9SsGeSK9UVYoDV0W0EfZKDTO27b-G6d02YLuHs&hl=en&boostcse=0&ie=UTF-8&oe=UTF-8&prmd=ivns&ei=DUznVZD2DMiuggTs8rto&start=10&sa=N was not found on this server. That’s all we know.