Keyword | CPC | PCC | Volume | Score | Length of keyword |
---|---|---|---|---|---|
free online astronomy textbook | 0.29 | 1 | 4618 | 62 | 30 |
free | 0.41 | 0.6 | 46 | 86 | 4 |
online | 1.11 | 0.9 | 7838 | 77 | 6 |
astronomy | 0.01 | 0.2 | 7368 | 37 | 9 |
textbook | 1.97 | 0.8 | 8643 | 11 | 8 |
Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|
free online astronomy textbook | 0.03 | 1 | 1585 | 89 |