| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| lifespan of vacuum tubes | 1.3 | 0.7 | 7364 | 53 | 24 |
| lifespan | 0.21 | 1 | 1684 | 50 | 8 |
| of | 0.64 | 1 | 1198 | 48 | 2 |
| vacuum | 1.21 | 0.8 | 2795 | 98 | 6 |
| tubes | 0.79 | 0.2 | 7731 | 55 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| lifespan of vacuum tubes | 0.79 | 1 | 7920 | 13 |
