| Domain | Date |
| kb.51.ca | 2024-03-13 |
| payments.51.ca | 2024-03-11 |
| tuan.51.ca | 2024-03-04 |
| sns.51.ca | 2024-02-28 |
| attach.51.ca | 2024-02-26 |
| m.51.ca | 2024-02-21 |
| img.51.ca | 2024-02-20 |
| maps.51.ca | 2024-02-18 |
| news.51.ca | 2024-02-18 |
| bbs.51.ca | 2024-02-15 |
| app.51.ca | 2024-02-11 |
| api.51.ca | 2024-01-31 |
| 51.ca | 2024-01-27 |
| uc.51.ca | 2024-01-10 |
| www.51.ca | 2023-11-13 |