mainstream engineering - get your epa certification online!
mainstream engineering has been a leader in epa certification programs for years. explore our site to discover how you can advance your career as an hvac/r technician!
Total Visits
Avg. Visit Duration
Pages per Visit
Bounce Rate
Registration Date
| Month | Traffic |
|---|---|
| 2025-02 | 65.852 |
| 2025-03 | 55.652 |
| 2025-04 | 62.303 |
| Source | Traffic Share |
|---|---|
| search | 47.94% |
| direct | 47.15% |
| referrals | 4.12% |
| social | 0.73% |
| paid referrals | 0.05% |
| 0.01% |
| Region | Percentage |
|---|---|
| United States | 99.79% |
| Canada | 0.21% |
| Keyword | Traffic | Volume | CPC |
|---|---|---|---|
| epa 608 | 420 | 4,200 | $1.78 |
| mainstream epa test | 2 | 20 | $0.00 |
| epa test | 168 | 1,680 | $1.39 |
| epa test .com | 9 | 90 | $0.00 |
| epatest | 24 | 240 | $0.00 |