| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| earth doctor | 0.81 | 0.4 | 2966 | 23 | 12 |
| earth | 1.65 | 0.1 | 4607 | 65 | 5 |
| doctor | 1.92 | 0.6 | 661 | 25 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| earth doctor | 1.09 | 0.3 | 757 | 16 |
| new earth doctor who | 1.5 | 0.1 | 3294 | 33 |
| doctor who return to earth | 0.8 | 0.8 | 7999 | 59 |
| doctor who the stolen earth | 0.16 | 1 | 1689 | 76 |
| doctor who the dalek invasion of earth | 0.89 | 1 | 8409 | 27 |
| doctor who the woman who fell to earth | 0.39 | 0.8 | 3405 | 15 |
| third doctor exiled to earth | 1.53 | 0.6 | 68 | 86 |
| doctor who return to earth wii | 1.02 | 0.2 | 1934 | 10 |
| doctor who: return to earth | 1.63 | 0.6 | 7327 | 80 |
