| Date | IP Address |
| 2024-05-13 | 13.43.228.100 (ClassC) |
| 2024-10-01 | 18.168.136.38 (ClassC) |
| 2025-05-01 | 18.133.148.172 (ClassC) |
| 2025-05-05 | 52.56.78.108 (ClassC) |
| 2025-05-12 | 18.130.177.141 (ClassC) |
| 2025-07-11 | 13.42.118.15 (ClassC) |
| 2025-11-21 | 13.135.84.102 (ClassC) |
| Date | Domain | IP |
| certcheck.ukas.com | 2024-05-13 | 13.40.90.146 |
| beta.certcheck.ukas.com | 2024-05-13 | 13.43.228.100 |
| api.certcheck.ukas.com | 2025-11-20 | 18.132.225.98 |
| www.ukas.com | 2025-01-16 | 104.26.13.88 |
| verify.ukas.com | 2024-11-24 | 3.33.186.135 |