| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| blackboard access control system | 0.33 | 0.2 | 3852 | 3 | 32 |
| blackboard | 0.91 | 0.9 | 8018 | 93 | 10 |
| access | 0.44 | 0.7 | 5243 | 64 | 6 |
| control | 1.79 | 0.7 | 1721 | 39 | 7 |
| system | 0.67 | 0.6 | 8757 | 89 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| blackboard access control system | 0.08 | 1 | 5845 | 45 |
