| Date | IP Address |
| 2017-05-28 | 13.113.108.172 (ClassC) |
| 2021-01-26 | 54.199.196.78 (ClassC) |
| 2022-08-05 | 52.194.35.215 (ClassC) |
| 2024-09-01 | 18.179.18.79 (ClassC) |
| 2024-09-12 | 43.206.31.33 (ClassC) |
| 2025-01-22 | 35.75.171.209 (ClassC) |
| 2025-04-06 | 52.197.20.63 (ClassC) |
| 2025-04-13 | 13.114.194.22 (ClassC) |
| 2025-04-21 | 52.193.228.165 (ClassC) |
| 2025-04-28 | 43.206.17.210 (ClassC) |
| 2025-06-23 | 54.150.154.43 (ClassC) |
| 2025-07-07 | 35.72.62.89 (ClassC) |
| 2025-08-20 | 35.77.131.8 (ClassC) |
| 2025-09-07 | 54.65.69.90 (ClassC) |
| 2026-01-26 | 18.180.6.67 (ClassC) |
| Date | Domain | IP |
| on.alpha.yarakuzen.com | 2026-01-06 | 54.150.202.41 |
| intranet.alpha.yarakuzen.com | 2026-01-06 | 35.73.126.168 |
| on.yarakuzen.com | 2025-07-10 | 57.181.53.198 |
| 3strans.on.yarakuzen.com | 2023-10-13 | 3.115.91.30 |
| app.yarakuzen.com | 2024-09-12 | 43.206.31.33 |
| dev.yarakuzen.com | 2026-01-05 | 54.150.202.41 |
| www.yarakuzen.com | 2023-10-13 | 18.181.30.231 |