| Date | IP Address |
| 2024-12-27 | 218.207.1.77 (ClassC) |
| 2025-02-21 | 116.163.41.140 (ClassC) |
| 2025-04-01 | 113.16.212.126 (ClassC) |
| 2025-04-30 | 111.48.88.106 (ClassC) |
| 2025-05-10 | 183.214.166.148 (ClassC) |
| 2025-05-15 | 42.236.124.76 (ClassC) |
| 2025-06-09 | 111.170.26.211 (ClassC) |
| 2025-06-25 | 101.69.122.105 (ClassC) |
| 2025-07-09 | 36.153.95.135 (ClassC) |
| 2025-07-12 | 110.40.28.20 (ClassC) |
| 2025-07-27 | 27.36.125.1 (ClassC) |
| 2025-09-21 | 119.0.68.9 (ClassC) |
| 2025-09-25 | 123.138.202.47 (ClassC) |
| 2025-10-03 | 183.231.34.1 (ClassC) |
| Date | Domain | IP |
| api.hello.ef.cn | 2025-03-24 | 183.131.87.124 |
| admin.hello.ef.cn | 2024-10-08 | 8.25.82.190 |
| assets.hello.ef.cn | 2023-11-29 | 124.239.240.173 |
| assets-aws.hello.ef.cn | 2024-12-27 | 116.177.236.45 |
| get.hello.ef.cn | 2025-05-07 | 117.168.151.102 |
| teacher-dev.hello.ef.cn | 2025-10-03 | 60.9.5.126 |
| api-proxy.hello.ef.cn | 2024-12-27 | 218.207.1.77 |