diff --git a/charts/sourcegraph-executor/dind/README.md b/charts/sourcegraph-executor/dind/README.md
index 80fb7a62..f017059d 100644
--- a/charts/sourcegraph-executor/dind/README.md
+++ b/charts/sourcegraph-executor/dind/README.md
@@ -70,7 +70,7 @@ In addition to the documented values, the `executor` and `private-docker-registr
 | executor.env | object | `{}` | Extra environment variables to set on the executor container. |
 | executor.frontendExistingSecret | string | `""` | Name of existing k8s Secret to use for frontend password. The k8s Secret must contain the key EXECUTOR_FRONTEND_PASSWORD matching the site config executors.accessToken value. frontendPassword is ignored if this is set. |
 | executor.frontendPassword | string | `""` | The shared secret configured in the Sourcegraph instance site config under executors.accessToken. Required if frontendExistingSecret is not configured. |
-| executor.frontendUrl | string | `""` | The external URL of the Sourcegraph instance. Required. |
+| executor.frontendUrl | string | `""` | The external URL of the Sourcegraph instance. Required. **Recommended:** set to the internal service endpoint (e.g. `http://sourcegraph-frontend.sourcegraph.svc.cluster.local:30080` if Sourcegraph is deployed in the `sourcegraph` namespace). This will avoid unnecessary network charges as traffic will stay within the local network. |
 | executor.image.defaultTag | string | `"6.0.0@sha256:0be94a7c91f8273db10fdf46718c6596340ab2acc570e7b85353806e67a27508"` |  |
 | executor.image.name | string | `"executor"` |  |
 | executor.log.format | string | `"json"` |  |
diff --git a/charts/sourcegraph-executor/dind/values.yaml b/charts/sourcegraph-executor/dind/values.yaml
index 7626918f..5ad89c5f 100644
--- a/charts/sourcegraph-executor/dind/values.yaml
+++ b/charts/sourcegraph-executor/dind/values.yaml
@@ -86,7 +86,8 @@ queues: []
 #   env: {}
 
 executor:
-  # -- The external URL of the Sourcegraph instance. Required.
+  # -- The external URL of the Sourcegraph instance. Required. **Recommended:** set to the internal service endpoint (e.g. `http://sourcegraph-frontend.sourcegraph.svc.cluster.local:30080` if Sourcegraph is deployed in the `sourcegraph` namespace).
+  # This will avoid unnecessary network charges as traffic will stay within the local network.
   frontendUrl: ""
   # -- The shared secret configured in the Sourcegraph instance site config under executors.accessToken. Required if frontendExistingSecret is not configured.
   frontendPassword: ""