| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| earliest ufo sighting history | 0.2 | 1 | 1394 | 71 | 29 |
| earliest | 1.87 | 0.5 | 5376 | 95 | 8 |
| ufo | 0.32 | 0.7 | 2382 | 55 | 3 |
| sighting | 0.54 | 0.5 | 9036 | 18 | 8 |
| history | 1.99 | 1 | 6229 | 59 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| earliest ufo sighting history | 0.64 | 0.1 | 9637 | 82 |
