| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| underground railroad definition and history | 1.03 | 0.7 | 1862 | 71 | 43 |
| underground | 1.34 | 0.7 | 7750 | 6 | 11 |
| railroad | 0.81 | 0.1 | 4062 | 57 | 8 |
| definition | 1.83 | 0.6 | 5517 | 92 | 10 |
| and | 0.28 | 0.8 | 8442 | 29 | 3 |
| history | 1.95 | 0.5 | 4109 | 61 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| underground railroad definition and history | 1.95 | 0.8 | 6850 | 67 |
