404. That’s an error.

The requested URL /translate_c?act=url&depth=1&hl=en&ie=UTF8&prev=_t&rurl=translate.google.com&sl=en&tl=ro&u=https://developer.mozilla.org/en/SpiderMonkey/JSAPI_Reference/JS_THREADSAFE&usg=ALkJrhhqplim3FcM_ycowZJ9Lb8pfghLHQ was not found on this server. That’s all we know.