| Date | IP Address |
| 2022-12-04 | 54.250.0.150 (ClassC) |
| 2022-12-08 | 52.197.174.87 (ClassC) |
| 2023-08-26 | 54.249.121.214 (ClassC) |
| 2023-11-01 | 13.230.14.107 (ClassC) |
| 2024-04-22 | 18.177.232.117 (ClassC) |
| 2024-05-25 | 18.180.69.216 (ClassC) |
| 2024-08-12 | 18.182.113.151 (ClassC) |
| 2024-09-26 | 52.192.190.6 (ClassC) |
| 2024-12-11 | 54.248.59.128 (ClassC) |
| 2024-12-31 | 35.72.59.241 (ClassC) |
| 2025-02-03 | 13.114.25.179 (ClassC) |
| 2025-05-09 | 54.199.55.152 (ClassC) |
| 2025-05-16 | 57.182.210.165 (ClassC) |
| 2025-08-07 | 52.69.237.203 (ClassC) |
| 2025-12-23 | 13.158.99.172 (ClassC) |
| 2026-01-25 | 13.192.55.216 (ClassC) |
| Date | Domain | IP |
| www.seminars.jp | 2015-01-14 | 54.248.244.102 |