| Date | IP Address |
| 2013-12-25 | 206.16.239.84 (ClassC) |
| 2024-07-09 | 108.156.211.40 (ClassC) |
| 2024-11-25 | 99.84.66.42 (ClassC) |
| 2025-04-26 | 99.84.66.9 (ClassC) |
| 2025-06-05 | 99.84.66.108 (ClassC) |
| 2025-12-05 | 104.18.35.191 (ClassC) |
| Date | Domain | IP |
| www-preview.gartner.co.jp | 2024-04-13 | 44.214.168.49 |
| www.gartner.co.jp | 2024-11-25 | 99.84.66.42 |