| Date | IP Address |
| 2019-05-11 | 118.212.233.155 (ClassC) |
| 2019-05-14 | 117.23.61.28 (ClassC) |
| 2019-07-10 | 118.212.233.175 (ClassC) |
| 2019-07-29 | 122.228.238.95 (ClassC) |
| 2019-07-29 | 1.31.128.218 (ClassC) |
| 2026-02-06 | 42.62.66.83 (ClassC) |
| Date | Domain | IP |
| appwb.langlib.com | 2025-07-16 | 42.62.66.83 |
| freetrial.langlib.com | 2025-11-26 | 42.62.66.83 |
| apptoefl.langlib.com | 2025-05-13 | 42.62.66.83 |
| appcet.langlib.com | 2026-02-08 | 42.62.66.83 |
| v.langlib.com | 2024-07-26 | 180.163.145.205 |
| www.langlib.com | 2026-02-06 | 42.62.66.83 |
| proxy.langlib.com | 2025-12-31 | 42.62.66.83 |