| Property | Value |
| Organization | 北京普瑞伯德信息技术有限公司 |
| bookdomain@namerich.cn | |
| NameServer | ns2.yiyu.com |
| Date | IP Address |
| 2017-06-14 | 103.241.230.139 (ClassC) |
| 2018-02-23 | 203.78.142.12 (ClassC) |
| 2019-12-17 | 47.52.207.244 (ClassC) |
| 2024-12-26 | 154.85.146.230 (ClassC) |
| 2025-03-11 | 172.67.191.91 (ClassC) |
| 2025-03-20 | 104.21.20.49 (ClassC) |