404. That’s an error.

The requested URL /custom?q=%22symbol+value%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=AELymgUv5Da0xdyLj4D4n6JzACKvTRBo4sE5bJ21BeqEvllq_i176uuhGTcl8mgohhuiEts-gYo7OsZSFGRLnqUf0gqDJQ9a3pgeKE056n_ogkxF8JL2rKw&hl=en&boostcse=0&ie=UTF-8&oe=UTF-8&prmd=ivns&ei=jU5MV93dHMvhmwGss6xY&start=10&sa=N was not found on this server. That’s all we know.