404. That’s an error.

The requested URL /custom?q=nmon+de&client=pub-3941415238088176&cof=FORID:13%3BAH:left%3BS:http://www.google.de%3BCX:test%3BL:http://www.nm-opf.de/logo.cgi%3BLH:37%3BLP:1%3BLC:%230000ff%3BVLC:%23663399%3BDIV:%23336699%3B&cx=partner-pub-3941415238088176:sgzbpostrp7&adkw=AELymgXfQIYzJtJaBZi6s6KWXOvV9J7NnaaQ3mA0oAqvyYDi9x8IrEgRaCbiFvMpZnf8XFQF32iJz5l_pfDbuXMjrs0VxHA6rLLjTFk9ztQKXNunMv72JBVDFBcpZFvm6xL0UxcGuHmr&hl=de&channel=7392486514&ie=UTF-8&oe=ISO-8859-1&prmd=ivns&ei=AGuwWKHXIYuMjwS_j6-YAQ&start=90&sa=N was not found on this server. That’s all we know.