Currently, SSL certificates of any type cannot be issued for the following country code top-level domains (TLDs):
| ISO Code | Country Name | TLD |
|---|---|---|
| BY | Belarus | .by |
| CU | Cuba | .cu |
| KP | Democratic People's Republic of Korea (DPRK) | .kp |
| IR | Iran | .ir |
| LY | Libya | .ly |
| MM | Myanmar | .mm |
| RU | Russia | .ru |
| RU | Russia / Soviet Union | .su |
| SD | Sudan | .sd |
| SS | South Sudan | .ss |
| SY | Syria | .sy |
| VE | Venezuela | .ve |
| YE | Yemen |
.ye |
