| keyword competition | A metric that shows how easy or difficult it is to rank for a given keyword in the SERPs. |
| density | How many times a keyword/phrase appears in the content of a webpage. While there is no ideal percentage to help with rankings, its said to keep it between 2-3%. |
| proximity | See Keyword proximity |
| boolean search | Mathematical operators that users can add to searches in order to further specify intent or unique parameters. |
| facebook engagement | A measure of how well your audience liked, shared or commented on your Facebook posts during the selected time period and how this number changed in comparison with the previous period. |