When Google indexes a web page, Google might assign a ranking score and a category score. In this example, a web page about flamingos would be compared to other pages that contain the word "flamingos". Depending on the other words on the web page, the page would be given a category score and a ranking score for the given category. According to the patent, the categories for pages and queries can be created manually, through an automated process, or by a combination of both methods. What does this mean for your website? If you want to make sure that Google categorizes your web pages correctly, you should use many different and related keywords that describe the topic of your website on your web pages.