|Introduced||24 September 1996|
|TLD type||Country code top-level domain|
|Sponsor||Ministry of Transport and Communications|
|Intended use||Entities connected with Eritrea|
|Actual use||Very few in use; no known registry site|
|Registered domains||<70 (2020)|
|Structure||Registrations are at third level beneath names such as .com.er and .org.er|
.er is the country code top-level domain (ccTLD) for Eritrea.
A number of second level domains exist; however, there is no information available about their exact purposes (although inferences can be made) or restrictions.