| Date | IP Address |
| 2015-11-06 | 54.230.91.83 (ClassC) |
| 2016-04-27 | 54.192.144.191 (ClassC) |
| 2024-10-10 | 34.239.28.33 (ClassC) |
| 2024-11-20 | 44.212.216.132 (ClassC) |
| 2024-11-25 | 52.0.184.1 (ClassC) |
| 2025-04-12 | 100.27.60.211 (ClassC) |
| 2025-05-07 | 3.229.99.20 (ClassC) |
| Date | Domain | IP |
| blog.zulip.org | 2024-11-25 | 52.71.128.36 |
| www.zulip.org | 2024-10-10 | 34.239.28.33 |