| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| serial killer in 1800s | 1.49 | 0.9 | 7513 | 40 | 22 |
| serial | 1.63 | 0.9 | 483 | 59 | 6 |
| killer | 0.15 | 0.7 | 5454 | 48 | 6 |
| in | 1.42 | 0.8 | 2967 | 38 | 2 |
| 1800s | 1.99 | 0.5 | 2377 | 80 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| serial killer in 1800s | 0.23 | 0.7 | 8174 | 91 |
| serial killers in 1800s america | 0.72 | 0.4 | 5313 | 29 |
| london serial killer in the 1800s | 0.6 | 0.9 | 158 | 30 |
| frederick krueger serial killer 1800s | 0.84 | 0.5 | 1689 | 21 |
| hotel serial killer 1800s | 1.72 | 0.2 | 5634 | 98 |
| austin serial killer 1800s | 1.46 | 0.9 | 397 | 63 |
| grim reaper serial killer in 1800s | 1.55 | 0.3 | 9388 | 9 |
| serial killers in the 1700s | 1.09 | 0.3 | 2517 | 50 |
| serial killers in the 1900s | 0.67 | 0.2 | 1027 | 91 |
| serial killers in the 19th century | 0.44 | 0.7 | 1278 | 94 |
| famous serial killers in the 1900s | 0.08 | 0.3 | 5590 | 71 |
| unknown serial killer from 1600s-1800s | 1.91 | 0.9 | 5876 | 54 |
| early 1900s serial killers | 0.26 | 0.7 | 2280 | 64 |
| serial killers in history | 0.92 | 0.8 | 4253 | 5 |
| serial killers in american history | 0.77 | 0.8 | 5099 | 23 |
| serial killers in the us caught 1900 | 0.62 | 0.2 | 4760 | 45 |
| first known serial killer | 1.46 | 0.1 | 9510 | 93 |
| serial killers in the 20th century | 0.37 | 0.8 | 5310 | 73 |
| ancient serial killers in history | 0.9 | 0.1 | 8665 | 47 |
| early 20th century serial killers | 0.89 | 0.1 | 2298 | 47 |
| early american serial killers | 1.96 | 1 | 2768 | 87 |
