| Property | Value |
| Organization | The College of Physicians of Philadelphia |
| State | PA |
| Country | US |
| NameServer | lakas.ns.cloudflare.com |
| Created | 2009-01-22 03:35:10 |
| Changed | 2021-01-23 01:29:32 |
| Expires | 2022-01-22 03:35:10 |
| Date | IP Address |
| 2020-12-15 | 104.18.53.200 (ClassC) |
| 2021-02-26 | 172.67.220.157 (ClassC) |
| 2024-05-30 | 50.18.142.31 (ClassC) |
| 2024-08-27 | 50.18.215.94 (ClassC) |
| 2024-09-02 | 52.9.166.110 (ClassC) |
| 2025-03-29 | 13.52.115.166 (ClassC) |
| 2025-05-04 | 54.215.62.21 (ClassC) |
| Date | Domain | IP |
| www.historyofvaccines.org | 2023-11-01 | 13.57.148.141 |