| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| zodiac killer letters | 1.33 | 0.2 | 8143 | 95 | 21 |
| zodiac | 0.18 | 0.4 | 498 | 29 | 6 |
| killer | 1.36 | 0.4 | 1498 | 11 | 6 |
| letters | 0.77 | 0.7 | 7178 | 32 | 7 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| zodiac killer letters | 0.71 | 0.3 | 9476 | 52 |
| zodiac killer letters pdf | 0.29 | 0.1 | 7788 | 90 |
| zodiac killer letters solved | 1.97 | 0.7 | 7863 | 41 |
| zodiac killer letters in order | 0.37 | 0.5 | 4302 | 79 |
| zodiac killer letters decoded | 1.97 | 0.5 | 164 | 75 |
| zodiac killer letters unsolved | 1.74 | 0.5 | 5127 | 82 |
| zodiac killer letters deciphered | 1.42 | 1 | 6465 | 92 |
| zodiac killer letters & ciphers | 0.25 | 0.2 | 6605 | 38 |
| zodiac killer letters bates | 0.48 | 0.2 | 3001 | 7 |
| zodiac killer letters images | 0.48 | 0.2 | 9002 | 71 |
| zodiac killer letters wikipedia | 0.74 | 0.7 | 3080 | 32 |
| zodiac killer letters and ciphers | 1.6 | 0.3 | 6039 | 66 |
| how many letters did the zodiac killer send | 0.73 | 0.3 | 1019 | 88 |
| which killer is behind the zodiac letters | 0.88 | 0.6 | 5155 | 19 |
