404. That’s an error.

The requested URL /custom?q=Surround.vim&safe=active&client=pub-3005259998294962&cof=FORID:13%3BAH:left%3BS:http://www.vim.org%3BCX:Vim%2520Search%3BL:http://www.vim.org/images/vim_header.gif%3BLH:45%3BLC:%230000ff%3BVLC:%23663399%3BDIV:%23336699%3B&cx=partner-pub-3005259998294962:bvyni59kjr1&adkw=AELymgX1QQRRy74XY0kmIBQ71DXEpYB_Bb4Nq_ZBeeQVmQ4KeHXKJ6eLc_CsYPoQHipAdSUfNia0yK-M_xh0TuHzC5rLIpiQ4X1M7E1Nj8ss-BvfhEofLOD8ts5q0FP-ADtYiEEjG5sjPOYskl6ZscFHXdaZ_bl0no_wajSaQlfTGtqt67OuPjU&hl=en&channel=7394275211&boostcse=0&ie=UTF-8&oe=ISO-8859-1&prmd=ivns&ei=jfNJV9awK8PPmwH_oY7wCQ&start=40&sa=N was not found on this server. That’s all we know.