k-12 flexbooks | ck-12 foundation
ck-12’s free, standards-aligned, digital textbooks are customizable, integrated, and interactive, allowing users to create 200,000+ localized flexbooks.
Total Visits
Avg. Visit Duration
Pages per Visit
Bounce Rate
Registration Date
| Month | Traffic |
|---|---|
| 2025-02 | 1K |
| 2025-03 | 1K |
| 2025-04 | 1K |
| Source | Traffic Share |
|---|---|
| search | 56.41% |
| direct | 28.83% |
| referrals | 14.36% |
| social | 0.31% |
| paid referrals | 0.06% |
| 0.03% |
| Region | Percentage |
|---|---|
| United States | 65.53% |
| MX | 4.29% |
| Australia | 3.19% |
| PH | 2.38% |
| India | 2.32% |
| Keyword | Traffic | Volume | CPC |
|---|---|---|---|
| binomcdf | 242 | 2,420 | $0.00 |
| ck12 geology | 11 | 110 | $0.00 |
| law of segregations imple | 4 | 40 | $0.00 |
| ck12 biology | 21 | 210 | $0.00 |
| unit circle | 91,290 | 912,900 | $0.21 |