| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| which fact about time is true lightspeed | 0.05 | 0.6 | 8841 | 68 | 40 |
| which | 0.3 | 0.2 | 6071 | 34 | 5 |
| fact | 0.56 | 0.5 | 3934 | 9 | 4 |
| about | 1.68 | 0.7 | 7535 | 7 | 5 |
| time | 0.21 | 0.6 | 4742 | 9 | 4 |
| is | 1.67 | 0.4 | 8287 | 75 | 2 |
| true | 1.8 | 0.7 | 5860 | 24 | 4 |
| lightspeed | 1.73 | 0.9 | 4297 | 92 | 10 |
