| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| immunity definition history | 1.46 | 0.8 | 1732 | 79 | 27 |
| immunity | 0.52 | 0.9 | 564 | 4 | 8 |
| definition | 0.88 | 0.6 | 7909 | 51 | 10 |
| history | 1.42 | 0.1 | 7369 | 43 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| immunity definition history | 1.46 | 0.8 | 9426 | 7 |
| immunity definition world history | 1.87 | 0.6 | 5177 | 66 |
