| courses for online safety | 0.16 | 0.8 | 4970 | 25 | 34 |
| online safety certification courses | 1.16 | 0.5 | 2287 | 35 | 56 |
| construction safety courses online | 1.85 | 0.6 | 5915 | 34 | 76 |
| hunters safety courses online | 1.49 | 0.6 | 7127 | 29 | 96 |
| osha safety training courses online | 1.24 | 0.8 | 5128 | 35 | 40 |
| online safety training courses | 1.6 | 0.5 | 1960 | 30 | 10 |
| driving safety courses online | 1.09 | 0.9 | 4418 | 29 | 31 |
| free online safety certification courses | 1.89 | 0.1 | 6320 | 40 | 64 |
| food safety certification course online | 0.74 | 0.9 | 1841 | 39 | 15 |
| free online water safety course certification | 0.49 | 0.2 | 8053 | 45 | 10 |
| online water safety course certification | 0.2 | 0.4 | 8988 | 40 | 13 |
