diff --git a/en/_posts/index.xml b/en/_posts/index.xml
index 1e604b04..f57e56f7 100644
--- a/en/_posts/index.xml
+++ b/en/_posts/index.xml
@@ -21,11 +21,12 @@
       <pubDate>Mon, 16 Jan 2023 00:00:00 +0000</pubDate>
       
       <guid>/en/bookmark/</guid>
-      <description>Wait for url from other devices
+      <description>AI, chatgpt etc.
+teach-anything magickpen Wait for url from other devices
 berify: reverse image search for video
 Tips File handling and styling with home.css &amp;quot;home.css&amp;quot; (in current folder, parent folder or the &amp;quot;bookmark&amp;quot; folder) styles bookmarks, search engines and the folder itself. The file is in html format instead of CSS, so it needs &amp;quot;&amp;lt;style&amp;gt;&amp;quot; tag for CSS.
 Install markdeep styling for markdown files
-Bookmarks with secrets (POST instead of GET) The search engine (&amp;quot;.search&amp;quot;) file can be used as bookmarks with secret.</description>
+Bookmarks with secrets (POST instead of GET) The search engine (&amp;quot;.</description>
     </item>
     
     <item>
@@ -123,7 +124,8 @@ The following html5 applications are allowed to read local files referred by &am
       
       <guid>/en/links/</guid>
       <description>Click the following links to install menus popped by long pressing the bookmark button (with star as icon):
-Classified bookmarks
+Extend site cookies to 10 years
+Clear site cookies
 VPN
 Switch configuration
 Wait for network msg
@@ -133,8 +135,7 @@ Restore from box.com
 upload to box.com
 More webdav link menu items
 Web fullscreen
-Long pressing the bookmark button in uweb browser will popup menus defined in file &amp;quot;default.link&amp;quot;. The file format is as follows:
-[Menu name]:[one or more links delimited by &amp;quot; \n &amp;quot;]</description>
+Long pressing the bookmark button in uweb browser will popup menus defined in file &amp;quot;default.link&amp;quot;. The file format is as follows:</description>
     </item>
     
     <item>
diff --git a/en/bookmark/index.html b/en/bookmark/index.html
index f2bda96c..0d5d9146 100644
--- a/en/bookmark/index.html
+++ b/en/bookmark/index.html
@@ -47,7 +47,12 @@
   <ul class="tags">
     
   </ul>
-  <p><a href="i:1w">Wait for url from other devices</a><br>
+  <p>AI, chatgpt etc.</p>
+<ul>
+<li><a href="https://www.teach-anything.com/">teach-anything</a></li>
+<li><a href="https://magickpen.com/">magickpen</a></li>
+</ul>
+<p><a href="i:1w">Wait for url from other devices</a><br>
 <a href="https://berify.com">berify: reverse image search for video</a></p>
 <h3 id="tips">Tips</h3>
 <h4 id="file-handling-and-styling-with-homecss">File handling and styling with home.css</h4>
@@ -81,7 +86,7 @@ box cloud:POST:type=webdav&amp;url=https://dav.box.com/dav&amp;username=xxx&amp;
 
 </div>
 <p>Last Modified: 5 March 2023<br>
-add simple modification info</p>
+optimize bingUS engine</p>
 
   </body>
 </html>
diff --git a/en/index.xml b/en/index.xml
index eed9209a..be095627 100644
--- a/en/index.xml
+++ b/en/index.xml
@@ -21,11 +21,12 @@
       <pubDate>Mon, 16 Jan 2023 00:00:00 +0000</pubDate>
       
       <guid>/en/bookmark/</guid>
-      <description>Wait for url from other devices
+      <description>AI, chatgpt etc.
+teach-anything magickpen Wait for url from other devices
 berify: reverse image search for video
 Tips File handling and styling with home.css &amp;quot;home.css&amp;quot; (in current folder, parent folder or the &amp;quot;bookmark&amp;quot; folder) styles bookmarks, search engines and the folder itself. The file is in html format instead of CSS, so it needs &amp;quot;&amp;lt;style&amp;gt;&amp;quot; tag for CSS.
 Install markdeep styling for markdown files
-Bookmarks with secrets (POST instead of GET) The search engine (&amp;quot;.search&amp;quot;) file can be used as bookmarks with secret.</description>
+Bookmarks with secrets (POST instead of GET) The search engine (&amp;quot;.</description>
     </item>
     
     <item>
@@ -189,7 +190,8 @@ Note: &#34;Engines&#34; needs file &#34;engine.search&#34;，whose format is sam
       
       <guid>/en/links/</guid>
       <description>Click the following links to install menus popped by long pressing the bookmark button (with star as icon):
-Classified bookmarks
+Extend site cookies to 10 years
+Clear site cookies
 VPN
 Switch configuration
 Wait for network msg
@@ -199,8 +201,7 @@ Restore from box.com
 upload to box.com
 More webdav link menu items
 Web fullscreen
-Long pressing the bookmark button in uweb browser will popup menus defined in file &amp;quot;default.link&amp;quot;. The file format is as follows:
-[Menu name]:[one or more links delimited by &amp;quot; \n &amp;quot;]</description>
+Long pressing the bookmark button in uweb browser will popup menus defined in file &amp;quot;default.link&amp;quot;. The file format is as follows:</description>
     </item>
     
     <item>
diff --git a/en/links/index.html b/en/links/index.html
index 41686cba..3b0a5059 100644
--- a/en/links/index.html
+++ b/en/links/index.html
@@ -48,7 +48,8 @@
     
   </ul>
   <p>Click the following links to install menus popped by long pressing the bookmark button (with star as icon):<br>
-<a href="i:0gdefault.link::More bookmarks:file:///data/data/info.torapp.uweb/files/bookmark/ {let as=document.getElementsByTagName('a');for(let i=as.length-1;i>=0;i--){let h=as[i].href;if(h.startsWith('file:')&&h.endsWith('.html'))as[i].href=h.substring(0,h.length-4)%2B'search';}}%0A">Classified bookmarks</a></p>
+<a href="i:0gdefault.link::Extend cookies::0000%0A">Extend site cookies to 10 years</a><br>
+<a href="i:0gdefault.link::Clear cookies::00000%0A">Clear site cookies</a></p>
 <p><a href="i:0gdefault.link::vpn:i:1dandroid.net.vpn.SETTINGS:::%0A">VPN</a></p>
 <p><a href="i:0gdefault.link::profile_config::cprofile . files .conf%0A">Switch configuration</a></p>
 <p><a href="i:0gdefault.link::Wait msg:i:1w%0A">Wait for network msg</a></p>
@@ -288,8 +289,8 @@ Visiting [url], but use the second url as auto paging url.</p>
 </ul>
 
 </div>
-<p>Last Modified: 4 March 2023<br>
-i:0m to support extra headers</p>
+<p>Last Modified: 5 March 2023<br>
+optimize bingUS engine</p>
 
   </body>
 </html>
diff --git a/en/sitemap.xml b/en/sitemap.xml
index ec8fce74..b8fb78a0 100644
--- a/en/sitemap.xml
+++ b/en/sitemap.xml
@@ -3,7 +3,7 @@
   xmlns:xhtml="http://www.w3.org/1999/xhtml">
   <url>
     <loc>/en/_posts/</loc>
-    <lastmod>2023-03-05T09:07:52+08:00</lastmod>
+    <lastmod>2023-03-05T19:56:23+08:00</lastmod>
     <xhtml:link
                 rel="alternate"
                 hreflang="zh"
@@ -68,7 +68,7 @@
                 />
   </url><url>
     <loc>/en/</loc>
-    <lastmod>2023-03-05T09:07:52+08:00</lastmod>
+    <lastmod>2023-03-05T19:56:23+08:00</lastmod>
     <xhtml:link
                 rel="alternate"
                 hreflang="zh"
@@ -81,7 +81,7 @@
                 />
   </url><url>
     <loc>/en/bookmark/</loc>
-    <lastmod>2023-03-05T09:07:52+08:00</lastmod>
+    <lastmod>2023-03-05T19:20:01+08:00</lastmod>
     <xhtml:link
                 rel="alternate"
                 hreflang="zh"
@@ -194,7 +194,7 @@
                 />
   </url><url>
     <loc>/en/links/</loc>
-    <lastmod>2023-03-04T06:47:54+08:00</lastmod>
+    <lastmod>2023-03-05T19:56:23+08:00</lastmod>
     <xhtml:link
                 rel="alternate"
                 hreflang="zh"
diff --git a/sitemap.xml b/sitemap.xml
index d31222a4..73c8d7f6 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -4,14 +4,14 @@
   <sitemap>
     <loc>en/sitemap.xml</loc>
     
-      <lastmod>2023-03-05T09:07:52+08:00</lastmod>
+      <lastmod>2023-03-05T19:56:23+08:00</lastmod>
     
   </sitemap>
   
   <sitemap>
     <loc>zh/sitemap.xml</loc>
     
-      <lastmod>2023-03-04T17:51:12+08:00</lastmod>
+      <lastmod>2023-03-05T21:06:18+08:00</lastmod>
     
   </sitemap>
   
diff --git a/zh/index.xml b/zh/index.xml
index e323a336..8f5dd5be 100644
--- a/zh/index.xml
+++ b/zh/index.xml
@@ -86,7 +86,8 @@ toplinks:https://www.toplinks.cc/s/?keyword=
 google:https://google.com/search?q=
 谷歌:https://谷歌.ml/search?q=
 必应:https://www.bing.com/search?q=
-bingUS:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s
+bingUS:i:92X-Forwarded-For;8.8.8.8:https://www.bing.com/search?q=
+bingUS2:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s
 百度:https://m.baidu.com/s?wd=
 Fsou:https://fsoufsou.com/search?q=
 neeva:https://neeva.com/search?q=
@@ -113,8 +114,7 @@ louk:https://www.louk.cn/vodsearch/-------------.html?wd=
 nfmovies:https://www.nfmovies.com/search.php?searchword=
 电影狗:https://www.dianyinggou.com/so/
 pianku:https://www.pianku.la/search/%s-------------.html
-novip:https://www.novipnoad.com/s=
-555dianying:https://555dianying.cc/vodsearch/-------------.html?wd=</description>
+novip:https://www.novipnoad.com/s=</description>
     </item>
     
     <item>
diff --git a/zh/search/index.html b/zh/search/index.html
index 4d295b15..846bc7af 100644
--- a/zh/search/index.html
+++ b/zh/search/index.html
@@ -90,7 +90,8 @@
 <a href="i:00google:https://google.com/search?q=">google:https://google.com/search?q=</a></p>
 <p><a href="i:00谷歌:https://谷歌.ml/search?q=">谷歌:https://谷歌.ml/search?q=</a></p>
 <p><a href="i:00必应:https://www.bing.com/search?q=">必应:https://www.bing.com/search?q=</a></p>
-<p><a href="i:00bingUS:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s">bingUS:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s</a></p>
+<p><a href="i:00bingUS:i:92X-Forwarded-For;8.8.8.8:https://www.bing.com/search?q=">bingUS:i:92X-Forwarded-For;8.8.8.8:https://www.bing.com/search?q=</a></p>
+<p><a href="i:00bingUS2:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s">bingUS2:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s</a></p>
 <p><a href="i:00百度:https://m.baidu.com/s?wd=">百度:https://m.baidu.com/s?wd=</a></p>
 <p><a href="i:00Fsou:https://fsoufsou.com/search?q=">Fsou:https://fsoufsou.com/search?q=</a></p>
 <p><a href="i:00neeva:https://neeva.com/search?q=">neeva:https://neeva.com/search?q=</a></p>
@@ -286,7 +287,7 @@
 <a href="i:00计算器:d:text/html:echo \'%s\'|bc -l -q:">计算器:d:text/html:echo '%s'|bc -l -q:</a></p>
 <p><a href="i:00函数作图:d:image/svg+xml:gnuplot -e \'set term svg;set output; plot %s\':">函数作图:d:image/svg+xml:gnuplot -e 'set term svg;set output; plot %s':</a></p>
 <p><a href="i:003d函数作图:d:image/svg+xml:gnuplot -e \'set term svg;set output; splot %s\':">3d函数作图:d:image/svg+xml:gnuplot -e 'set term svg;set output; splot %s':</a></p>
-<p><a href="../searchcat">分类搜索</a></p>
+<p><a href="../searchcat/index.html">分类搜索</a></p>
 <p>更多引擎可参看：<br>
 <a href="https://github.com/cc1024/Google">google镜像</a><br>
 <a href="https://searx.space">searx</a><br>
@@ -300,8 +301,8 @@
 <a href="https://www.zhihu.com/question/20251786">有哪些特殊的搜索引擎</a></p>
 
 </div>
-<p>Last Modified: 4 March 2023<br>
-add simple modification info</p>
+<p>Last Modified: 5 March 2023<br>
+optimize bingUS engine</p>
 
   </body>
 </html>
diff --git a/zh/sitemap.xml b/zh/sitemap.xml
index ee602e5e..32fd2ff5 100644
--- a/zh/sitemap.xml
+++ b/zh/sitemap.xml
@@ -16,7 +16,7 @@
                 />
   </url><url>
     <loc>/zh/</loc>
-    <lastmod>2023-03-04T17:51:12+08:00</lastmod>
+    <lastmod>2023-03-05T21:06:18+08:00</lastmod>
     <xhtml:link
                 rel="alternate"
                 hreflang="en"
@@ -94,7 +94,7 @@
                 />
   </url><url>
     <loc>/zh/topposts/</loc>
-    <lastmod>2023-03-04T09:37:57+08:00</lastmod>
+    <lastmod>2023-03-05T21:06:18+08:00</lastmod>
     <xhtml:link
                 rel="alternate"
                 hreflang="en"
@@ -107,7 +107,7 @@
                 />
   </url><url>
     <loc>/zh/search/</loc>
-    <lastmod>2023-03-04T09:37:57+08:00</lastmod>
+    <lastmod>2023-03-05T21:06:18+08:00</lastmod>
     <xhtml:link
                 rel="alternate"
                 hreflang="en"
diff --git a/zh/topposts/index.xml b/zh/topposts/index.xml
index 21792094..48fa9053 100644
--- a/zh/topposts/index.xml
+++ b/zh/topposts/index.xml
@@ -50,7 +50,8 @@ toplinks:https://www.toplinks.cc/s/?keyword=
 google:https://google.com/search?q=
 谷歌:https://谷歌.ml/search?q=
 必应:https://www.bing.com/search?q=
-bingUS:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s
+bingUS:i:92X-Forwarded-For;8.8.8.8:https://www.bing.com/search?q=
+bingUS2:X-Forwarded-For;8.8.8.8::https://www.bing.com/search?q=%s
 百度:https://m.baidu.com/s?wd=
 Fsou:https://fsoufsou.com/search?q=
 neeva:https://neeva.com/search?q=
@@ -77,8 +78,7 @@ louk:https://www.louk.cn/vodsearch/-------------.html?wd=
 nfmovies:https://www.nfmovies.com/search.php?searchword=
 电影狗:https://www.dianyinggou.com/so/
 pianku:https://www.pianku.la/search/%s-------------.html
-novip:https://www.novipnoad.com/s=
-555dianying:https://555dianying.cc/vodsearch/-------------.html?wd=</description>
+novip:https://www.novipnoad.com/s=</description>
     </item>
     
     <item>