| Date | IP Address |
| 2025-03-12 | 120.25.221.158 (ClassC) |
| Date | Domain | IP |
| mail01.ydn.cn | 2024-07-19 | 27.25.152.246 |
| brand.ydn.cn | 2024-09-06 | 27.25.152.241 |
| auth.ydn.cn | 2024-08-08 | 150.138.39.137 |
| authsmtp.ydn.cn | 2025-01-20 | 27.25.152.242 |
| agency.ydn.cn | 2024-02-20 | 124.236.103.55 |