404. That’s an error.

The requested URL /custom?q=%22ring%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=AELymgVnLbfLO3Vjc8FfR5Sz_xHQRJu8lPJBcWORg05zLTi4gebX9Pd48-cuG7FyN90mX4YV5-_lGTLPPSONd7sQUN0g-df22yv2RTrYQGrBWkOd-CEHUiY&hl=en&boostcse=0&ie=UTF-8&oe=UTF-8&prmd=ivnspz&ei=CMcpV9KnD4Gs-AHf7IzYCw&start=80&sa=N was not found on this server. That’s all we know.