| deep link ratio | The deep link ratio is the percentage of hyperlinks that point to other pages than your homepage. If you had 100 pages and 60 were pointing to pages other than your homepage, your deep link ratio would be 60%. |
| optimization | The process of improving the keyword density of a web page and modifying the page in such a way that it ranks well (on the SERPs) for those keywords it has been positioned for. Basically making a page spider-friendly by, for example, using text links rather than image links in hopes that it will improve in the rank within the search engines. |
| earnings per click | A data point used to measure potential earnings based on how much a publisher earns for each click on an ad. |
| aggregate data | Aggregate data is the data that describes how a section/group of customers/visitors respond to your marketing activities/efforts. This could indicate how a particular audience responds to picture ads, video ads, and what actions they take after seeing these ads. |
| link spam | Link spam is also known as comment spam, and these comments are the ones you see where the poster includes unwanted links or unrelated text. |
