| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| optical letters impact factor | 1.14 | 0.4 | 5625 | 37 | 29 |
| optical | 0.14 | 0.8 | 4816 | 22 | 7 |
| letters | 0.88 | 0.6 | 4610 | 77 | 7 |
| impact | 1.86 | 0.9 | 4892 | 86 | 6 |
| factor | 0.96 | 0.2 | 2010 | 65 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| optical letters impact factor | 0.55 | 1 | 1790 | 27 |
