| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| optics by eugene hecht | 0.12 | 0.1 | 9352 | 47 | 22 |
| optics | 0.35 | 0.7 | 1627 | 55 | 6 |
| by | 0.09 | 0.4 | 3335 | 55 | 2 |
| eugene | 0.24 | 0.6 | 1401 | 71 | 6 |
| hecht | 1.78 | 0.8 | 1551 | 68 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| optics by eugene hecht | 1.15 | 0.3 | 1225 | 95 |
