| Date | IP Address |
| 2018-10-16 | 13.113.78.150 (ClassC) |
| 2019-03-26 | 54.95.12.99 (ClassC) |
| 2020-10-23 | 54.150.54.233 (ClassC) |
| 2021-02-14 | 54.64.91.143 (ClassC) |
| 2023-09-05 | 13.113.87.227 (ClassC) |
| 2023-10-05 | 52.192.155.189 (ClassC) |
| 2023-12-29 | 175.41.209.182 (ClassC) |
| 2024-06-29 | 54.65.64.248 (ClassC) |
| 2025-09-06 | 35.78.32.1 (ClassC) |
| 2025-09-11 | 35.72.190.96 (ClassC) |
| 2025-10-14 | 18.182.70.196 (ClassC) |
| 2025-11-06 | 13.114.66.148 (ClassC) |
| 2025-11-19 | 13.231.13.3 (ClassC) |
| 2025-11-21 | 57.183.77.239 (ClassC) |
| 2025-12-18 | 54.168.148.14 (ClassC) |
| 2026-01-22 | 54.199.147.22 (ClassC) |
| Date | Domain | IP |
| media.hardoff.co.jp | 2025-02-17 | 3.163.24.11 |
| netmall.hardoff.co.jp | 2025-09-06 | 35.78.32.1 |
| contents-blog.netmall.hardoff.co.jp | 2024-08-17 | 3.163.165.21 |
| stg-contents-blog.netmall.hardoff.co.jp | 2025-04-01 | 18.161.6.116 |
| contents-goods.netmall.hardoff.co.jp | 2020-11-13 | 13.224.102.122 |
| www.hardoff.co.jp | 2024-11-12 | 99.84.66.108 |