diff --git a/README.md b/README.md
index 46c195f..c51071d 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,8 @@ Can be run as Single User Blog or Multi User Instance.
 
 Each User can be limited from 1 to unlimited blogs.
 
+**WriteFreely** require a dedicated **root domain**, eg. writefreely.domain.tld
+
 **Shipped version:** v0.8.1
 
 ## Screenshots