| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| what is the hygiene hypothesis | 0.79 | 0.9 | 6041 | 100 | 30 |
| what | 1.9 | 0.5 | 1017 | 44 | 4 |
| is | 1.86 | 0.4 | 5068 | 18 | 2 |
| the | 1.52 | 0.3 | 5646 | 40 | 3 |
| hygiene | 0.62 | 0.4 | 17 | 36 | 7 |
| hypothesis | 1.8 | 0.9 | 5885 | 81 | 10 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is the hygiene hypothesis | 1.37 | 0.7 | 4360 | 62 |
