diff --git a/src/app/project/app/[tabName]/domains/domains.tsx b/src/app/project/app/[tabName]/domains/domains.tsx
index 7b27330..403a559 100644
--- a/src/app/project/app/[tabName]/domains/domains.tsx
+++ b/src/app/project/app/[tabName]/domains/domains.tsx
@@ -28,6 +28,8 @@ import { deleteDomain } from "./actions";
 import { ListUtils } from "@/server/utils/list.utils";
 import { StringUtils } from "@/server/utils/string.utils";
 import { Code } from "@/components/custom/code";
+import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from "@/components/ui/tooltip";
+import { QuestionMarkCircledIcon } from "@radix-ui/react-icons";
 
 
 export default function DomainsList({ app }: {
@@ -39,7 +41,24 @@ export default function DomainsList({ app }: {
         <Card>
             <CardHeader>
                 <CardTitle>Domains</CardTitle>
-                <CardDescription>Add custom domains to your application. If your app has a domain configured, it will be public and accessible via the internet. <br />Internal Hostname: <Code>{internalUrl}</Code></CardDescription>
+                <CardDescription>Add custom domains to your application. If your app has a domain configured, it will be public and accessible via the internet. <br />
+
+                    <div className="flex gap-1">
+                        <div>Internal Hostname: <Code>{internalUrl}</Code></div>
+                        <div className="self-center">
+                            <TooltipProvider>
+                                <Tooltip>
+                                    <TooltipTrigger asChild><QuestionMarkCircledIcon /></TooltipTrigger>
+                                    <TooltipContent>
+                                        <p className="max-w-[350px]">
+                                            Other app can connect to this app using this hostname. This hostname is valid for all internal connections within the same project.
+                                        </p>
+                                    </TooltipContent>
+                                </Tooltip>
+                            </TooltipProvider>
+                        </div>
+                    </div>
+                </CardDescription>
             </CardHeader>
             <CardContent>
                 <Table>