Some ranking factors cannot be measured because the search engines do not reveal the necessary data, or it would be extremely time-consuming to measure the data. Make sure you pay attention to the following factors because they could prevent a top ranking for your website on Google.com. Are the web pages linking to your web page relevant to the search term "search file free download"? How fast does your web page get new links pointing to it? Do the web sites which link to your page belong to the same content category? Since when do the links to your page exist? Is the text surrounding the link to your page relevant to the search term "search file free download"?