| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| when was the smithsonian castle built | 1.55 | 1 | 9519 | 29 | 37 |
| when | 0.92 | 0.6 | 7819 | 5 | 4 |
| was | 0.4 | 0.1 | 6776 | 85 | 3 |
| the | 1.83 | 0.1 | 9917 | 34 | 3 |
| smithsonian | 0.76 | 0.8 | 2689 | 16 | 11 |
| castle | 1.73 | 0.9 | 847 | 69 | 6 |
| built | 1.39 | 0.6 | 4429 | 99 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when was the smithsonian castle built | 1.39 | 0.3 | 2901 | 99 |
