| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| encyclopedia britannica railroad history | 0.79 | 0.1 | 8093 | 10 | 40 |
| encyclopedia | 0.96 | 0.2 | 1067 | 81 | 12 |
| britannica | 0.4 | 0.9 | 4033 | 71 | 10 |
| railroad | 0.22 | 0.3 | 4091 | 99 | 8 |
| history | 1.83 | 0.6 | 8193 | 57 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| encyclopedia britannica railroad history | 0.3 | 0.4 | 6198 | 74 |
| the history of the railroad | 1.27 | 0.5 | 1181 | 85 |
| encyclopedia of western railroad history | 0.54 | 0.8 | 1749 | 49 |
| what was the railroad | 1.8 | 0.7 | 4721 | 24 |
| information about the railroad | 0.93 | 0.8 | 3962 | 51 |
| railroad definition us history | 1.11 | 0.2 | 4783 | 1 |
| origin of the railroad | 0.99 | 0.5 | 2688 | 76 |
| railroads definition world history | 0.46 | 0.2 | 494 | 48 |
| the railway in history | 0.33 | 0.3 | 3503 | 66 |
| railroads us history definition | 1.14 | 0.8 | 2599 | 4 |
| railroad in us history | 1.44 | 1 | 1838 | 100 |
| history of the railways | 1.05 | 0.9 | 3175 | 96 |
| history of railroad rail | 0.92 | 0.7 | 8664 | 64 |
| facts about the railroad | 1.47 | 0.5 | 6525 | 91 |
