| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| underground railroad series | 1.43 | 0.2 | 746 | 54 | 27 |
| underground | 1.02 | 0.7 | 5332 | 91 | 11 |
| railroad | 1.57 | 0.8 | 3941 | 50 | 8 |
| series | 1.03 | 1 | 4380 | 24 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| underground railroad series | 0.03 | 0.7 | 7345 | 3 |
