404. That’s an error.

The requested URL /translate_c?depth=1&hl=es&prev=search&rurl=translate.google.com&sl=en&sp=nmt4&u=https://en.m.wikipedia.org/wiki/Block_cipher_mode_of_operation&xid=17259,15700019,15700186,15700190,15700256,15700259,15700262,15700265,15700271,15700283&usg=ALkJrhgd4kD0HlXRgpf5FtIqLkwkkqJ7oQ was not found on this server. That’s all we know.