| Date | IP Address |
| 2015-03-07 | 54.83.26.67 (ClassC) |
| 2018-10-07 | 23.23.80.68 (ClassC) |
| 2022-09-18 | 54.205.224.4 (ClassC) |
| 2023-06-06 | 3.218.35.185 (ClassC) |
| 2023-10-14 | 52.72.43.221 (ClassC) |
| 2024-01-09 | 52.206.3.112 (ClassC) |
| 2024-02-24 | 54.175.201.169 (ClassC) |
| 2024-06-29 | 52.72.24.190 (ClassC) |
| 2024-08-12 | 52.72.230.63 (ClassC) |
| 2025-01-15 | 52.201.88.134 (ClassC) |
| 2026-01-13 | 18.210.189.28 (ClassC) |
| Date | Domain | IP |
| pubsub.cloze.com | 2025-05-24 | 44.199.118.179 |
| api.cloze.com | 2025-09-01 | 52.6.11.224 |
| cdn.cloze.com | 2024-02-01 | 99.84.238.92 |
| help.cloze.com | 2026-01-13 | 18.210.189.28 |
| app.cloze.com | 2025-09-01 | 3.210.166.195 |
| images.cloze.com | 2024-03-11 | 99.84.66.95 |
| www.cloze.com | 2024-04-22 | 52.4.18.65 |