| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| greatest historical mysteries | 1.9 | 0.1 | 4328 | 48 | 29 |
| greatest | 0.37 | 0.4 | 7144 | 17 | 8 |
| historical | 1.06 | 0.7 | 8396 | 65 | 10 |
| mysteries | 1.5 | 0.5 | 7177 | 32 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| greatest historical mysteries | 0.65 | 1 | 7830 | 79 |
| greatest historical mysteries of all time | 0.72 | 0.9 | 2245 | 83 |
| greatest historical mystery novels | 0.57 | 0.3 | 2970 | 15 |
| top mysteries of all time | 0.29 | 0.5 | 324 | 61 |
| the best mysteries of all time | 0.94 | 0.5 | 3264 | 7 |
| the biggest mysteries of all time | 1.68 | 0.6 | 2537 | 99 |
| greatest mystery of all time | 0.21 | 0.2 | 8580 | 17 |
| the 50 best mysteries of all time | 0.17 | 0.6 | 8774 | 20 |
| top 100 mysteries of all time | 0.35 | 0.5 | 4038 | 87 |
| history greatest mysteries wiki | 0.47 | 0.3 | 2060 | 49 |
| ancient history greatest mysteries | 0.5 | 0.7 | 7479 | 35 |
| greatest mysteries in american history | 0.83 | 1 | 7376 | 36 |
| famous well known historical mysteries | 0.52 | 0.5 | 4590 | 5 |
| histories most famous mysteries | 0.7 | 0.1 | 27 | 70 |
| history's greatest mysteries wikipedia | 0.45 | 0.5 | 2605 | 72 |
| famous mysteries in history | 1.55 | 0.7 | 2925 | 22 |
| the biggest mysteries in history | 1.78 | 0.9 | 1804 | 35 |
