| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| zodiac killer unsolved cipher | 1.25 | 0.6 | 2616 | 19 | 29 |
| zodiac | 0.5 | 0.8 | 5103 | 85 | 6 |
| killer | 1.49 | 0.5 | 1548 | 45 | 6 |
| unsolved | 1.11 | 0.1 | 3057 | 53 | 8 |
| cipher | 1.04 | 0.2 | 9486 | 8 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| zodiac killer unsolved cipher | 1.65 | 0.7 | 4404 | 64 |
| zodiac killer ciphers unsolved | 1.25 | 0.3 | 4844 | 46 |
| has the zodiac killer cipher been solved | 1.53 | 0.6 | 9261 | 37 |
| the zodiac killer cipher | 1.18 | 0.7 | 7183 | 91 |
| zodiac killer decoded cipher | 0.76 | 0.1 | 4215 | 70 |
| zodiac killer cipher cracked | 1.02 | 1 | 4798 | 95 |
| zodiac killer cipher solved 2017 | 0.99 | 0.3 | 646 | 21 |
| zodiac killer cipher key | 0.4 | 0.3 | 2415 | 89 |
| zodiac killer cipher alphabet | 1.02 | 0.8 | 9204 | 100 |
| zodiac killer cypher finally solved | 0.82 | 0.2 | 6354 | 83 |
| zodiac killer cipher translation | 0.25 | 0.2 | 9140 | 74 |
| zodiac killer still unsolved | 1.78 | 0.2 | 8031 | 98 |
| zodiac killer letters & ciphers | 1.69 | 0.9 | 5134 | 42 |
| zodiac killer cypher has been cracked | 0.69 | 0.7 | 1636 | 68 |
