| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| public domain heroes and villains | 1.39 | 0.3 | 587 | 44 |
| public domain superheroes and villains | 1.78 | 0.7 | 6212 | 41 |
| public domain heroes wiki | 1.22 | 0.9 | 2024 | 66 |
| heroes in the public domain | 0.21 | 0.8 | 5825 | 32 |
| public domain comic heroes | 0.86 | 0.5 | 5192 | 11 |
| public domain super heroes | 1.82 | 0.6 | 9361 | 32 |
| villain characters public domain | 1.61 | 0.4 | 9900 | 9 |
| list of public domain super heroes | 1.13 | 0.2 | 3794 | 5 |
| public domain super villains | 0.78 | 0.9 | 4919 | 74 |
| public domain comic book heroes | 1.09 | 0.8 | 4037 | 23 |
| public domain superheroes wiki | 0.39 | 0.1 | 4684 | 90 |
| superheroes in the public domain | 1.6 | 0.4 | 789 | 92 |
| public domain micro heroes | 1.25 | 0.8 | 4349 | 66 |
| public domain superhero teams | 1.75 | 0.5 | 5642 | 80 |
| superheroes with no powers public domain | 0.98 | 0.8 | 3924 | 92 |
| public domain horror characters | 1.16 | 0.7 | 5638 | 77 |
| strong superhero public domain | 1.71 | 0.3 | 494 | 61 |
| best public domain superheroes | 1.63 | 0.1 | 2812 | 96 |
