Rules for the Soviet Union:
| Extension: | .su |
| Country: | Soviet Union |
| Region: | Asia |
| [Local Presence] | |
| Local Presence required: | No |
| [Registration] | |
| Registration term: | 1 year |
| Sub-domains: | |
| IDN: | Yes, exclusively cyrillic (а б в г д е ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я) |
| Domain length: | 3 to 63 |
| Registration processing time: | 24 hours |
| Company registration or VAT number: | Registrant, Person: ID card number, Company: company registration number |
| Registrant indivdual or legal: | Yes |
| Admin contact individual: | No |
| Prior rights required: | No |
| Application form: | No |
| [Renewal] | |
| Renewal term: | 1 year |
| Late renewal: | No |
| Restoration: | No |
| Early deletion: | No |
| [Transfer] | |
| Procedure: | Update of admin and billing contact with Domgate's handles |
| Expiration date changes: | No |
| Unlock domain | No |
| [Owner Change] | |
| Procedure: | Manual |
| Documents required: | Yes |
| Registration date change: | No |
| [Other general considerations] | The .su extension keeps alive despite the dissolution of the USSR on 1991. |
| Registry | http://www.ripn.su/domen-su/ |
| Whois | https://apps.db.ripe.net/db-web-ui/query |
| Policies | http://www.ripn.su/domen-su/kak-stat-registratorom/ |