| Date | IP Address |
| 2018-08-26 | 23.72.48.224 (ClassC) |
| 2018-09-28 | 104.106.24.195 (ClassC) |
| 2019-12-11 | 88.221.135.40 (ClassC) |
| 2020-06-26 | 23.201.218.107 (ClassC) |
| 2020-08-07 | 104.86.110.123 (ClassC) |
| 2020-08-12 | 95.100.111.26 (ClassC) |
| 2020-09-13 | 2.18.66.72 (ClassC) |
| 2020-11-02 | 95.101.20.177 (ClassC) |
| 2021-03-21 | 2.17.43.65 (ClassC) |
| 2021-12-15 | 2.18.29.123 (ClassC) |
| 2022-03-07 | 23.59.177.141 (ClassC) |
| 2022-05-23 | 23.38.191.24 (ClassC) |
| 2022-05-30 | 96.17.193.30 (ClassC) |
| 2022-06-16 | 2.16.172.155 (ClassC) |
| 2022-12-31 | 23.63.73.162 (ClassC) |
| 2023-06-16 | 2.18.66.75 (ClassC) |
| 2024-09-03 | 23.41.4.16 (ClassC) |
| 2024-12-25 | 23.54.18.240 (ClassC) |
| 2025-01-21 | 23.38.191.161 (ClassC) |
| 2025-04-02 | 23.59.88.201 (ClassC) |
| 2026-01-07 | 23.41.4.82 (ClassC) |
| 2026-01-15 | 23.41.4.79 (ClassC) |
| 2026-01-26 | 23.41.4.83 (ClassC) |
| Date | Domain | IP |
| www1.skymark.co.jp | 2025-05-05 | 210.169.227.39 |
| search.skymark.co.jp | 2025-05-05 | 210.169.227.39 |
| www.res.skymark.co.jp | 2024-09-03 | 23.41.4.16 |
| smart.skymark.co.jp | 2025-04-01 | 210.169.227.39 |
| www.skymark.co.jp | 2025-08-03 | 210.169.227.39 |