| Property | Value |
| Organization | Pearson Japan K.K. |
| NameServer | 02.dnsv.jp |
| Created | 2012-12-28 00:00:00 |
| Changed | 2018-12-31 16:11:35 |
| Date | IP Address |
| 2024-12-18 | 63.35.23.131 (ClassC) |
| 2025-04-15 | 34.246.144.185 (ClassC) |
| 2025-05-12 | 52.51.131.59 (ClassC) |
| Date | Domain | IP |
| dl.pearson.co.jp | 2019-07-10 | 13.32.253.86 |
| www.pearson.co.jp | 2025-04-05 | 52.51.131.59 |
| englishready.pearson.co.jp | 2024-12-18 | 63.35.23.131 |
| www.englishready.pearson.co.jp | 2024-12-24 | 34.246.144.185 |