404. That’s an error.

The requested URL /translate_c?depth=1&hl=de&ie=UTF8&prev=_t&rurl=translate.google.at&sl=en&tl=de&u=http://arduino.cc/en/Serial/Flush&usg=ALkJrhhZBYGGL0tlQ8ic3WoUKwFoeksydA was not found on this server. That’s all we know.