| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| lusitania sunk by german u-boat | 0.38 | 0.4 | 5319 | 3 |
| german u boat that sunk the lusitania | 1.11 | 0.9 | 817 | 87 |
| when did german u boat sunk lusitania | 0.6 | 0.3 | 6948 | 34 |
| lusitania sunk by a german u boat | 1.61 | 0.9 | 46 | 6 |
| u boat that sank the lusitania | 1.4 | 0.5 | 8114 | 47 |
| german u-boat sinks lusitania | 1.42 | 0.6 | 3557 | 18 |
| when was the lusitania sunk by germans | 1.33 | 0.4 | 2516 | 1 |
| u boat sinks lusitania | 1.11 | 0.7 | 8296 | 15 |
| why a german submarine sunk the lusitania | 1.11 | 0.9 | 2133 | 3 |
| german sinking of the lusitania | 1.39 | 0.9 | 494 | 11 |
| lusitania sinking german submarine | 1.02 | 0.6 | 3585 | 25 |
| lusitania sinking german history | 0.22 | 0.7 | 3036 | 88 |
| what sunk the lusitania | 1.67 | 1 | 1276 | 9 |
| germany sinking the lusitania | 0.56 | 0.9 | 2418 | 15 |
| german submarine sinks the lusitania | 1.37 | 0.1 | 7298 | 27 |
| did germany sink the lusitania | 0.64 | 0.4 | 5816 | 44 |
| when did lusitania sunk by a german u-boat | 0.49 | 0.3 | 7795 | 25 |
| when was lusitania sunk by a german u-boat | 1.7 | 0.6 | 3959 | 1 |
| lusitania sunk by a german u-boat year | 1.67 | 0.2 | 9188 | 23 |
