diff --git a/next-sitemap.config.js b/next-sitemap.config.js
index 11b2e94..36f1faa 100644
--- a/next-sitemap.config.js
+++ b/next-sitemap.config.js
@@ -9,7 +9,13 @@ module.exports = {
   changefreq: 'daily',
   priority: 0.7,
   generateRobotsTxt: true,
-  exclude: ['/tachi', '/help', '/search'],
+  exclude: [
+    '/tachi',
+    '/user/login',
+    '/help',
+    '*/search*',
+    '*/periodical/statistics/click*',
+  ],
 
   robotsTxtOptions: {
     additionalSitemaps: [
diff --git a/package.json b/package.json
index a014c58..531f6d8 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "build:dep": "cross-env ANALYZE=true next build",
     "start": "next start",
     "server_start": "pm2 start ecosystem.config.js",
-    "server_reload": "next-sitemap --config next-sitemap.config.js && next build && pm2 reload ecosystem.config.js",
+    "server_reload": "next build && next-sitemap --config next-sitemap.config.js && pm2 reload ecosystem.config.js",
     "server_stop": "pm2 stop ecosystem.config.js",
     "lint": "next lint",
     "lint:fix": "eslint src --fix && yarn format",
diff --git a/server.js b/server.js
index 9a68149..32bc098 100644
--- a/server.js
+++ b/server.js
@@ -38,14 +38,16 @@ const handleRedirect = (req, res, locale, urlLocale) => {
     }
     if (locale === DEFAULT_LOCALE) {
       const newUrl = req.url.replace(`/${DEFAULT_LOCALE}`, '') || '/';
-      return res.redirect(307, newUrl);
+      res.redirect(307, newUrl);
+      return true;
     }
   } else if (locale !== DEFAULT_LOCALE) {
     let newUrl = `/${locale}${req.url}`;
     if (newUrl.endsWith('/') && newUrl.length > 1) {
       newUrl = newUrl.slice(0, -1);
     }
-    return res.redirect(307, newUrl);
+    res.redirect(307, newUrl);
+    return true;
   }
   return false;
 };
diff --git a/src/pages/index.tsx b/src/pages/index.tsx
index 1870925..4c25c54 100644
--- a/src/pages/index.tsx
+++ b/src/pages/index.tsx
@@ -14,14 +14,18 @@ import IndexBar from '@/components/navbar/IndexBar';
 import Seo from '@/components/Seo';
 import ToTop from '@/components/toTop/ToTop';
 
+const validSortBy = ['featured', 'all'];
+
 const Index: NextPage = () => {
   const { t, i18n } = useTranslation('home');
   const router = useRouter();
-  const { sort_by = 'featured', tid = '' } = router.query;
+  const { sort_by = 'featured', tid = '' }: { sort_by?: string; tid?: string } =
+    router.query;
+  const sortBy = validSortBy.includes(sort_by) ? sort_by : 'featured';
 
   const { isLogin } = useLoginContext();
   const { repositories, isValidating, hasMore, size, sentryRef } =
-    useRepositories(sort_by as string, tid as string);
+    useRepositories(sortBy, tid);
 
   const handleItemBottom = () => {
     if (!isValidating && !hasMore) {
@@ -37,12 +41,7 @@ const Index: NextPage = () => {
   return (
     <>
       <Seo title={t('title')} description={t('description')} />
-      <IndexBar
-        tid={tid as string}
-        sort_by={sort_by as string}
-        t={t}
-        i18n_lang={i18n.language}
-      />
+      <IndexBar tid={tid} sort_by={sortBy} t={t} i18n_lang={i18n.language} />
       <div className='h-screen'>
         <Items repositories={repositories} i18n_lang={i18n.language} />
         <div
diff --git a/src/pages/tags/[tid].tsx b/src/pages/tags/[tid].tsx
index 4f15516..c13d1c6 100644
--- a/src/pages/tags/[tid].tsx
+++ b/src/pages/tags/[tid].tsx
@@ -42,15 +42,24 @@ export const getServerSideProps: GetServerSideProps = async ({
   const ip = getClientIP(req);
   const tid = query?.tid as string;
   const data = await getTagPageItems(ip, tid);
-  const tag_name =
-    locale == 'en' && data.tag_name_en ? data.tag_name_en : data.tag_name;
-  return {
-    props: {
-      ...(await serverSideTranslations(locale as string, ['common', 'topic'])),
-      items: data.data,
-      tag_name: tag_name,
-    },
-  };
+  if (data.success) {
+    const tag_name =
+      locale == 'en' && data.tag_name_en ? data.tag_name_en : data.tag_name;
+    return {
+      props: {
+        ...(await serverSideTranslations(locale as string, [
+          'common',
+          'topic',
+        ])),
+        items: data.data,
+        tag_name: tag_name,
+      },
+    };
+  } else {
+    return {
+      notFound: true,
+    };
+  }
 };
 
 export default TagPage;
diff --git a/src/types/tag.tsx b/src/types/tag.tsx
index 8df52bd..ea92eea 100644
--- a/src/types/tag.tsx
+++ b/src/types/tag.tsx
@@ -8,6 +8,7 @@ export interface TagPageProps {
 }
 
 export interface TagPage {
+  success: boolean;
   page: number;
   data: HomeItem[];
   tid: string;