diff --git a/.env b/.env
index 419976f..ab9c670 100644
--- a/.env
+++ b/.env
@@ -1 +1,5 @@
+# This specifies the Invariant Explorer instance where the proxy will push the traces 
+# Set this to https://preview-explorer.invariantlabs.ai if you want to push to Preview.
+# If you want to push to a local instance of explorer, then specify the app-api docker container name like: 
+# http://<app-api-docker-container-name>:8000 to push to the local explorer instance.
 INVARIANT_API_URL=https://explorer.invariantlabs.ai