| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| portal 1 free full game | 1.98 | 1 | 2893 | 12 |
| portal 1 free full game soluce | 0.99 | 1 | 4515 | 38 |
| portal 1 free download full game pc | 0.12 | 0.8 | 1101 | 15 |
| portal download free full game | 1.12 | 1 | 9259 | 8 |
| portal 1 free download | 0.63 | 0.4 | 6228 | 37 |
| play portal 1 online free | 0.74 | 0.1 | 8840 | 27 |
| portal 1 for free | 0.27 | 0.8 | 1518 | 72 |
| portal 1 free download pc | 0.76 | 0.9 | 4540 | 62 |
| free portal 2 full game | 1.36 | 0.5 | 2266 | 90 |
| portal game free download | 1.26 | 0.6 | 1484 | 72 |
| portal 2 full game | 0.31 | 0.5 | 8857 | 61 |
| portal game free online | 0.25 | 0.9 | 9547 | 23 |
| portal 1 game release date | 0.45 | 0.8 | 6858 | 11 |
| play portal 1 online | 1.48 | 0.2 | 6254 | 51 |
| portal the game free | 0.38 | 0.8 | 1309 | 35 |
| portal 1 download pc | 0.53 | 0.2 | 6309 | 82 |
