| Date | IP Address |
| 2018-07-05 | 42.81.4.86 (ClassC) |
| 2021-04-08 | 150.139.250.236 (ClassC) |
| 2021-04-08 | 150.139.250.239 (ClassC) |
| 2021-04-08 | 150.139.250.240 (ClassC) |
| 2021-04-08 | 150.139.250.248 (ClassC) |
| 2024-02-04 | 61.170.80.213 (ClassC) |
| 2024-02-04 | 61.170.80.214 (ClassC) |
| 2026-02-05 | 157.185.145.81 (ClassC) |
| Date | Domain | IP |
| cdn.fei.ets100.com | 2024-11-16 | 138.113.19.16 |
| cdnfei.ets100.com | 2024-04-12 | 180.97.251.232 |
| assistantcdn.ets100.com | 2025-05-07 | 157.185.180.41 |
| cdn.subject.ets100.com | 2026-02-05 | 157.185.145.81 |
| cdnsubject.ets100.com | 2024-04-20 | 222.186.18.220 |
| www.ets100.com | 2025-12-15 | 203.107.36.189 |