| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| is encyclopedia primary or secondary source | 1.7 | 0.3 | 5288 | 44 | 43 |
| is | 1.09 | 1 | 864 | 5 | 2 |
| encyclopedia | 0.13 | 0.4 | 7383 | 10 | 12 |
| primary | 0.74 | 0.3 | 2402 | 93 | 7 |
| or | 1.91 | 0.1 | 2622 | 4 | 2 |
| secondary | 0.77 | 0.8 | 8093 | 54 | 9 |
| source | 1.48 | 0.7 | 8160 | 18 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| is encyclopedia primary or secondary source | 1.57 | 0.8 | 294 | 27 |
| are encyclopedia primary or secondary sources | 1.28 | 0.4 | 3947 | 75 |
| are encyclopedias primary sources | 0.57 | 0.9 | 9922 | 42 |
| why is an encyclopedia a secondary source | 0.26 | 0.7 | 3791 | 95 |
