| Date | IP Address |
| 2014-03-07 | 46.249.222.215 (ClassC) |
| 2026-02-23 | 34.246.26.197 (ClassC) |
| Date | Domain | IP |
| clubhealthcheck-stg.rfu.com | 2024-04-18 | 45.60.86.86 |
| admin.clubhealthcheck-stg.rfu.com | 2024-06-02 | 45.60.86.86 |
| clubhealthcheck.rfu.com | 2024-10-18 | 45.60.86.86 |
| admin.clubhealthcheck.rfu.com | 2024-09-21 | 45.60.86.86 |
| matchdaymail.rfu.com | 2026-02-23 | 34.246.26.197 |
| help.rfu.com | 2024-06-11 | 18.194.104.216 |
| newsletter.rfu.com | 2025-02-27 | 34.230.174.129 |
| gms.rfu.com | 2026-01-13 | 130.0.83.123 |
| www.rfu.com | 2025-08-30 | 94.236.28.220 |