diff --git a/getDomainAlternative.md b/getDomainAlternative.md
index 8d65529..effa89e 100644
--- a/getDomainAlternative.md
+++ b/getDomainAlternative.md
@@ -2,7 +2,7 @@ URL: /tools/domain/alternative/<br/>
 Request type: POST
 
 ### Overview
-This API method provides validation information for alternative DCV methods. Current method does not provide :link:[Unique Value](https://github.com/gogetssl/api/wiki/Comodo-Unique-Value)
+This API method provides validation information for alternative DCV methods. This endpoint can only be used for ssl certificates of the GoGetSSL and Sectigo brands. Current method does not provide :link:[Unique Value](https://github.com/gogetssl/api/wiki/Comodo-Unique-Value)
 
 ### Request parameters
 * csr – CSR code for which the validation information must be provided.