| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| today in railroad history | 1.41 | 0.5 | 4198 | 48 | 25 |
| today | 1.02 | 0.4 | 6899 | 25 | 5 |
| in | 1.79 | 0.1 | 8148 | 73 | 2 |
| railroad | 0.67 | 0.7 | 6905 | 20 | 8 |
| history | 0.49 | 0.6 | 4721 | 22 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| today in railroad history | 0.45 | 1 | 1426 | 91 |
| railroad history in america | 0.89 | 0.4 | 9175 | 39 |
| railroad in us history | 0.39 | 0.5 | 5405 | 37 |
| in recent years railroads | 0.09 | 0.3 | 3212 | 62 |
| history of the railroad in usa | 0.12 | 0.6 | 3932 | 14 |
| early railroad history in america | 1.25 | 0.7 | 741 | 11 |
| railroad news us today | 0.47 | 0.6 | 7714 | 79 |
| history of railroads in the united states | 1.63 | 1 | 764 | 78 |
| the american railroad history | 0.95 | 0.1 | 533 | 100 |
| railroads in america history | 1.89 | 0.2 | 279 | 13 |
| us railroad history timeline | 1.41 | 0.8 | 6243 | 27 |
| american railroad history | 1.24 | 0.1 | 8870 | 92 |
| chinese and railroad history in america | 0.41 | 0.8 | 71 | 45 |
