| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| underground railroad summary | 1.09 | 0.9 | 1106 | 2 | 28 |
| underground | 0.92 | 0.1 | 9997 | 86 | 11 |
| railroad | 1.75 | 1 | 1105 | 95 | 8 |
| summary | 1.63 | 0.5 | 2143 | 43 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| underground railroad summary | 0.89 | 0.7 | 5889 | 8 |
