diff --git a/api/v1/redirector.go b/api/v1/redirector.go
index f9b568f..d5d8553 100644
--- a/api/v1/redirector.go
+++ b/api/v1/redirector.go
@@ -30,7 +30,7 @@ func (s *APIV1Service) registerRedirectorRoutes(g *echo.Group) {
 			return echo.NewHTTPError(http.StatusInternalServerError, fmt.Sprintf("failed to get shortcut, err: %s", err)).SetInternal(err)
 		}
 		if shortcut == nil {
-			return echo.NewHTTPError(http.StatusNotFound, fmt.Sprintf("not found shortcut with name: %s", shortcutName))
+			return c.Redirect(http.StatusSeeOther, fmt.Sprintf("/404?shortcut=%s", shortcutName))
 		}
 		if shortcut.Visibility != storepb.Visibility_PUBLIC {
 			userID, ok := c.Get(userIDContextKey).(int32)
diff --git a/frontend/web/src/components/CreateShortcutDialog.tsx b/frontend/web/src/components/CreateShortcutDialog.tsx
index d553448..7e88f54 100644
--- a/frontend/web/src/components/CreateShortcutDialog.tsx
+++ b/frontend/web/src/components/CreateShortcutDialog.tsx
@@ -1,6 +1,6 @@
 import { Button, Divider, Input, Modal, ModalDialog, Radio, RadioGroup, Textarea } from "@mui/joy";
 import classnames from "classnames";
-import { isUndefined } from "lodash-es";
+import { isUndefined, uniq } from "lodash-es";
 import { useEffect, useState } from "react";
 import { toast } from "react-hot-toast";
 import { useTranslation } from "react-i18next";
@@ -11,6 +11,7 @@ import Icon from "./Icon";
 
 interface Props {
   shortcutId?: ShortcutId;
+  initialShortcut?: Partial<Shortcut>;
   onClose: () => void;
   onConfirm?: () => void;
 }
@@ -22,7 +23,7 @@ interface State {
 const visibilities: Visibility[] = ["PRIVATE", "WORKSPACE", "PUBLIC"];
 
 const CreateShortcutDialog: React.FC<Props> = (props: Props) => {
-  const { onClose, onConfirm, shortcutId } = props;
+  const { onClose, onConfirm, shortcutId, initialShortcut } = props;
   const { t } = useTranslation();
   const { shortcutList } = useAppSelector((state) => state.shortcut);
   const [state, setState] = useState<State>({
@@ -38,12 +39,13 @@ const CreateShortcutDialog: React.FC<Props> = (props: Props) => {
         description: "",
         image: "",
       },
+      ...initialShortcut,
     },
   });
   const [showAdditionalFields, setShowAdditionalFields] = useState<boolean>(false);
   const [showOpenGraphMetadata, setShowOpenGraphMetadata] = useState<boolean>(false);
   const [tag, setTag] = useState<string>("");
-  const tagSuggestions = shortcutList.map((shortcut) => shortcut.tags).flat();
+  const tagSuggestions = uniq(shortcutList.map((shortcut) => shortcut.tags).flat());
   const requestState = useLoading(false);
   const isCreating = isUndefined(shortcutId);
 
diff --git a/frontend/web/src/pages/NotFound.tsx b/frontend/web/src/pages/NotFound.tsx
new file mode 100644
index 0000000..9ebb1df
--- /dev/null
+++ b/frontend/web/src/pages/NotFound.tsx
@@ -0,0 +1,62 @@
+import { Button } from "@mui/joy";
+import { useEffect, useState } from "react";
+import { useLocation } from "react-router-dom";
+import CreateShortcutDialog from "@/components/CreateShortcutDialog";
+import Icon from "@/components/Icon";
+import useNavigateTo from "@/hooks/useNavigateTo";
+import useUserStore from "@/stores/v1/user";
+
+interface State {
+  showCreateShortcutButton: boolean;
+}
+
+const NotFound = () => {
+  const location = useLocation();
+  const navigateTo = useNavigateTo();
+  const currentUser = useUserStore().getCurrentUser();
+  const [state, setState] = useState<State>({
+    showCreateShortcutButton: false,
+  });
+  const [showCreateShortcutDialog, setShowCreateShortcutDialog] = useState(false);
+  const params = new URLSearchParams(location.search);
+
+  useEffect(() => {
+    const shortcut = params.get("shortcut");
+    if (currentUser && shortcut) {
+      setState({
+        ...state,
+        showCreateShortcutButton: true,
+      });
+    }
+  }, []);
+
+  return (
+    <>
+      <div className="w-full h-full overflow-y-auto overflow-x-hidden bg-zinc-100 dark:bg-zinc-800">
+        <div className="w-full h-full flex flex-col justify-center items-center">
+          <Icon.Meh strokeWidth={1} className="w-20 h-auto opacity-80 dark:text-gray-300" />
+          <p className="mt-4 mb-8 text-4xl font-mono dark:text-gray-300">404</p>
+          {state.showCreateShortcutButton && (
+            <Button
+              variant="outlined"
+              startDecorator={<Icon.Plus className="w-5 h-auto" />}
+              onClick={() => setShowCreateShortcutDialog(true)}
+            >
+              Create shortcut
+            </Button>
+          )}
+        </div>
+      </div>
+
+      {showCreateShortcutDialog && (
+        <CreateShortcutDialog
+          initialShortcut={{ name: params.get("shortcut") || "" }}
+          onClose={() => setShowCreateShortcutDialog(false)}
+          onConfirm={() => navigateTo("/")}
+        />
+      )}
+    </>
+  );
+};
+
+export default NotFound;
diff --git a/frontend/web/src/routers/index.tsx b/frontend/web/src/routers/index.tsx
index 19ce397..6bbe648 100644
--- a/frontend/web/src/routers/index.tsx
+++ b/frontend/web/src/routers/index.tsx
@@ -1,4 +1,5 @@
 import { createBrowserRouter } from "react-router-dom";
+import NotFound from "@/pages/NotFound";
 import SignIn from "@/pages/SignIn";
 import SignUp from "@/pages/SignUp";
 import SubscriptionSetting from "@/pages/SubscriptionSetting";
@@ -53,6 +54,10 @@ const router = createBrowserRouter([
           },
         ],
       },
+      {
+        path: "*",
+        element: <NotFound />,
+      },
     ],
   },
 ]);