| Date | IP Address |
| 2024-04-13 | 3.163.24.115 (ClassC) |
| 2024-08-01 | 3.163.24.75 (ClassC) |
| 2024-10-06 | 99.86.38.80 (ClassC) |
| 2024-10-14 | 52.84.174.108 (ClassC) |
| 2024-11-16 | 3.163.24.55 (ClassC) |
| 2024-11-24 | 3.163.24.61 (ClassC) |
| 2024-12-14 | 3.160.132.61 (ClassC) |
| 2025-01-10 | 99.86.38.26 (ClassC) |
| 2026-01-08 | 3.175.34.115 (ClassC) |
| 2026-01-28 | 3.175.34.27 (ClassC) |
| Date | Domain | IP |
| hwb.llyw.cymru | 2024-03-01 | 18.239.199.113 |
| www.labdysgullc.llyw.cymru | 2022-02-14 | 54.192.73.55 |
| cofrestrrhanddeiliaid.llyw.cymru | 2025-07-22 | 51.137.128.108 |
| www.cofrestrrhanddeiliaid.llyw.cymru | 2025-05-09 | 51.137.128.108 |
| ceisioamgyllidgosodbandeang.gwasanaeth.llyw.cymru | 2024-11-02 | 51.141.97.243 |
| cyfraith.llyw.cymru | 2025-12-31 | 51.137.128.108 |
| www.cyfraith.llyw.cymru | 2025-10-16 | 51.137.128.108 |
| govservice.ynysmon.llyw.cymru | 2024-06-24 | 54.77.203.183 |
| fynghyfrif.ynysmon.llyw.cymru | 2024-09-02 | 34.251.66.17 |
| dogfennaucynllunio.ynysmon.llyw.cymru | 2026-01-03 | 212.219.245.48 |
| cymrungweithio.llyw.cymru | 2024-06-09 | 45.60.32.95 |
| busnescymru.llyw.cymru | 2024-09-25 | 51.141.97.243 |
| gwiriwrcymhwysedd.busnescymru.llyw.cymru | 2023-12-01 | 152.195.19.97 |
| www.busnescymru.llyw.cymru | 2026-01-13 | 51.137.128.108 |
| statscymru.llyw.cymru | 2026-01-18 | 20.157.120.98 |
| agored.statscymru.llyw.cymru | 2024-11-24 | 40.85.134.30 |
| cadw.llyw.cymru | 2026-01-06 | 51.137.128.108 |
| www.cadw.llyw.cymru | 2026-01-07 | 51.137.128.108 |
| www.llyw.cymru | 2024-04-13 | 3.163.24.115 |