| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| hierarchy of control safety | 0.63 | 0.7 | 6763 | 14 | 27 |
| hierarchy | 1.47 | 0.5 | 9057 | 51 | 9 |
| of | 1.71 | 1 | 9691 | 56 | 2 |
| control | 0.53 | 0.1 | 7261 | 41 | 7 |
| safety | 1.21 | 0.4 | 953 | 68 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| hierarchy of control safety | 1.06 | 0.5 | 3738 | 65 |
