| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| railroads definition us history | 0.81 | 0.2 | 351 | 11 | 31 |
| railroads | 1.14 | 0.4 | 4081 | 48 | 9 |
| definition | 1.21 | 0.5 | 4356 | 26 | 10 |
| us | 0.52 | 0.3 | 1510 | 80 | 2 |
| history | 0.52 | 0.7 | 6657 | 10 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| railroads definition us history | 1.78 | 0.3 | 2260 | 87 |
