At the moment for the following countries, secure certificates cannot be issued for websites or country-code-top-level domains (TLDs):
- AF Afghanistan
- CU Cuba
- ER Eritrea
- GN Guinea
- IR Iran, Islamic Republic of
- KP Korea, Democratic People's Republic of
- LR Liberia
- North Cyprus
- SD Sudan
- SL Sierra Leone
- SS South Sudan
- SY Syrian Arab Republic
- ZW Zimbabwe
These countries are restricted by US Export restriction laws.