| Date | IP Address |
| 2017-08-11 | 151.101.1.147 (ClassC) |
| 2018-02-22 | 151.101.185.147 (ClassC) |
| 2018-03-21 | 151.101.45.147 (ClassC) |
| 2024-12-23 | 185.199.110.153 (ClassC) |
| 2025-04-24 | 185.199.109.153 (ClassC) |
| 2025-05-01 | 185.199.108.153 (ClassC) |
| 2025-11-16 | 185.199.111.153 (ClassC) |
| Date | Domain | IP |
| 2016.code4lib.org | 2024-12-27 | 185.199.108.153 |
| 2017.code4lib.org | 2024-06-24 | 185.199.111.153 |
| 2018.code4lib.org | 2024-12-23 | 185.199.110.153 |
| journal.code4lib.org | 2025-09-27 | 152.19.134.41 |
| www.code4lib.org | 2025-02-11 | 185.199.111.153 |