| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| superman story of the century | 0.63 | 0.7 | 3205 | 44 |
| superman end of the century | 1.08 | 0.7 | 8070 | 30 |
| the story of superman | 0.78 | 0.1 | 3055 | 56 |
| the amazing story of superman | 1.23 | 0.9 | 1355 | 92 |
| who came out first century or superman | 0.03 | 0.9 | 9220 | 14 |
| the history of superman | 0.84 | 0.6 | 4365 | 22 |
| story of superman comic | 1.35 | 0.9 | 3022 | 45 |
| the story of superman's life | 0.45 | 0.1 | 5679 | 45 |
| superman ready for the next century | 0.71 | 0.4 | 810 | 85 |
| superman through the years | 1.09 | 0.8 | 8753 | 74 |
| superman in comics history | 0.41 | 0.9 | 4471 | 55 |
| the origins of superman | 1.82 | 0.5 | 9896 | 23 |
| superman the early years | 0.59 | 0.8 | 6364 | 37 |
| superman through the ages | 1.05 | 0.7 | 9008 | 98 |
| origin of superman character | 0.75 | 0.7 | 3754 | 76 |
| greatest superman stories ever told | 1.56 | 0.3 | 7466 | 9 |
| superman history and origin | 1.16 | 0.2 | 7103 | 2 |
| superman in the comics | 1.8 | 0.1 | 5363 | 52 |
| what is superman's origin story | 1.71 | 0.2 | 3389 | 18 |
| interesting facts about superman | 1.32 | 0.1 | 7231 | 17 |
| key facts about superman | 1.32 | 1 | 5863 | 47 |
| when was superman invented | 1.97 | 0.2 | 5111 | 53 |
