diff --git a/client/index.ts b/client/index.ts
index 35ffd15..f77bf4d 100644
--- a/client/index.ts
+++ b/client/index.ts
@@ -48,3 +48,6 @@ if ("serviceWorker" in navigator)
     } catch (e) {
         console.error(e)
     }
+
+const config = await fetch('config.json').then((re) => re.json())
+config.title && (document.title = config.title)
diff --git a/server/config.ts b/server/config.ts
index c9656cb..4076efe 100644
--- a/server/config.ts
+++ b/server/config.ts
@@ -17,9 +17,10 @@ let config = {
          */
         listen: {
             port: 3601,
-            host: "::",
+            host: null,
             /**
              * setting ipv6Only to true will disable dual-stack support, i.e., binding to host :: won't make 0.0.0.0 be bound.
+             * 然而这在 deno 上没什么用, 不如设定 host 为 null
              */
             ipv6Only: false,
         },
@@ -31,6 +32,9 @@ let config = {
             cert: default_data_path + '/cert.pem',
         },
     },
+    client: {
+        title: '铃之椅',
+    },
 }
 
 try {
diff --git a/server/main.ts b/server/main.ts
index d4bc8c9..ab66df6 100644
--- a/server/main.ts
+++ b/server/main.ts
@@ -21,6 +21,9 @@ import FileUploadMiddleware from "./fileupload-middleware.ts"
 const app = express()
 app.use('/', express.static(config.data_path + '/page_compiled'))
 app.use(cookieParser())
+app.get('/config.json', (req, res) => {
+    res.send(config.client || {})
+})
 app.get('/uploaded_files/:hash', FileUploadMiddleware.checkAccessingUploadedFiles, (req, res) => {
     const file = FileManager.findByHash(req.params.hash as string)