| Property | Value |
| Organization | 北京普瑞伯德信息技术有限公司 |
| bookdomain@namerich.cn | |
| NameServer | yiyu2.dnspod.net |
| Date | IP Address |
| 2015-08-10 | 121.9.212.88 (ClassC) |
| 2018-03-21 | 23.225.253.75 (ClassC) |
| 2020-12-17 | 154.86.72.217 (ClassC) |
| 2025-02-03 | 170.33.13.246 (ClassC) |
| 2025-06-24 | 54.179.117.50 (ClassC) |
| 2025-08-06 | 170.33.12.185 (ClassC) |