diff --git a/dashboard/public/translation/en.json b/dashboard/public/translation/en.json
index 1e01cfa8d..48dffa2d1 100644
--- a/dashboard/public/translation/en.json
+++ b/dashboard/public/translation/en.json
@@ -1130,7 +1130,7 @@
             "netcupApiKey": "API Key",
             "netcupApiPassword": "API Password",
             "vultrToken": "Vultr Token",
-            "wellKnownDescription": "The values will be used by Cloudron to respond to <code>/.well-known/</code> URLs. Note that an app must be available on the bare domain <code>{{ domain }}</code> for this to work. See the <a href=\"{{docsLink}}\" target=\"_blank\">docs</a> for more information.",
+            "wellKnownDescription": "The values will be used to respond to <code>https://{{ domain }}/.well-known/</code> URLs. Note that an app must be available on the bare domain <code>{{ domain }}</code> for this to work. See the <a href=\"{{docsLink}}\" target=\"_blank\">docs</a> for more information.",
             "jitsiHostname": "Jitsi Location",
             "hetznerToken": "Hetzner Token",
             "cloudflareDefaultProxyStatus": "Enable proxying  for new DNS records",
diff --git a/dashboard/src/components/WellKnownDialog.vue b/dashboard/src/components/WellKnownDialog.vue
index 89d5fba7f..e54441f4f 100644
--- a/dashboard/src/components/WellKnownDialog.vue
+++ b/dashboard/src/components/WellKnownDialog.vue
@@ -109,17 +109,17 @@ defineExpose({
 
         <FormGroup>
           <label for="">{{ $t('domains.domainDialog.matrixHostname') }}</label>
-          <TextInput id="" v-model="matrixHostname" />
+          <TextInput id="" v-model="matrixHostname" placeholder="synapse.example.com:443"/>
         </FormGroup>
 
         <FormGroup>
           <label for="">{{ $t('domains.domainDialog.mastodonHostname') }}</label>
-          <TextInput id="" v-model="mastodonHostname" />
+          <TextInput id="" v-model="mastodonHostname" placeholder="mastodon.example.com"/>
         </FormGroup>
 
         <FormGroup>
           <label for="">{{ $t('domains.domainDialog.jitsiHostname') }}</label>
-          <TextInput id="" v-model="jitsiHostname" />
+          <TextInput id="" v-model="jitsiHostname" placeholder="jitsi.example.com"/>
         </FormGroup>
       </fieldset>
     </form>