| .sy | ccTLD | National Authority for Information Technology Services (NAITS) | 查看 |
| .sydney | newG | State of New South Wales, Department of Premier and Cabinet | 查看 |
| .systems | newG | Binky Moon, LLC / c/o Identity Digital Inc. | 查看 |
| .sz | ccTLD | University of Swaziland / Department of Computer Science | 查看 |
