| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| school shooting in us history | 0.98 | 0.7 | 9902 | 37 |
| worst school shooting in us history | 0.68 | 0.6 | 6565 | 2 |
| deadliest school shooting in us history | 1.64 | 0.5 | 4155 | 39 |
| first school shooting in us history | 1.26 | 0.1 | 7605 | 37 |
| worst mass school shooting in us history | 1.59 | 0.9 | 1244 | 11 |
| biggest school shooting in us history | 0.97 | 0.7 | 8483 | 4 |
| every school shooting in us history | 1.75 | 0.3 | 4630 | 24 |
