| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| proquest history vault | 0.82 | 0.1 | 3214 | 97 | 22 |
| proquest | 1.1 | 1 | 6757 | 90 | 8 |
| history | 1.12 | 1 | 9220 | 51 | 7 |
| vault | 0.07 | 0.4 | 3905 | 59 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| proquest history vault | 0.73 | 0.5 | 9211 | 53 |
| proquest history vault naacp | 1.7 | 0.7 | 9449 | 23 |
| proquest black history vault | 0.33 | 0.7 | 358 | 80 |
