| Date | IP Address |
| 2019-12-10 | 52.3.140.77 (ClassC) |
| 2020-11-03 | 34.232.127.101 (ClassC) |
| 2024-07-29 | 54.174.188.104 (ClassC) |
| 2024-08-12 | 54.205.228.134 (ClassC) |
| 2024-08-31 | 54.208.180.6 (ClassC) |
| 2024-11-05 | 52.1.209.130 (ClassC) |
| 2025-01-02 | 52.3.163.243 (ClassC) |
| 2025-01-18 | 54.144.100.235 (ClassC) |
| Date | Domain | IP |
| learn.pimsleur.com | 2024-08-11 | 99.84.66.33 |
| refer.pimsleur.com | 2024-08-12 | 54.205.228.134 |
| portal-uat.pimsleur.com | 2024-02-18 | 18.161.6.30 |
| www.pimsleur.com | 2023-08-29 | 54.221.232.39 |