| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| free online classes with certificates 2018 | 1.32 | 0.1 | 8843 | 64 | 42 |
| free | 1.16 | 0.1 | 9710 | 28 | 4 |
| online | 1.9 | 0.7 | 1334 | 14 | 6 |
| classes | 1.53 | 0.3 | 3464 | 12 | 7 |
| with | 1.19 | 1 | 7665 | 47 | 4 |
| certificates | 0.93 | 0.9 | 2009 | 34 | 12 |
| 2018 | 0.1 | 0.4 | 1178 | 80 | 4 |
