diff --git a/html/50x.html b/html/50x.html
index bccc512..c30a7ec 100644
--- a/html/50x.html
+++ b/html/50x.html
@@ -1,6 +1,8 @@
 <!DOCTYPE html>
 <html>
 <head>
+<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
+<meta content="utf-8" http-equiv="encoding">
 <title>Error</title>
 <style>
     body {
@@ -16,6 +18,8 @@
 Please try again later.</p>
 <p>If you are the system administrator of this resource then you should check
 the <a href="http://nginx.org/r/error_log">error log</a> for details.</p>
-<p><em>Faithfully yours, [OpenResty](https://openresty.org/).</em></p>
+<p>We have articles on troubleshooting issues like <a href="https://blog.openresty.com/en/lua-cpu-flame-graph/?src=wb">high CPU usage</a>,
+<a href="https://blog.openresty.com/en/how-or-alloc-mem/">large memory usage</a> on <a href="https://blog.openresty.com/">our official blog site</a>.
+<p><em>Faithfully yours, <a href="https://openresty.org/">OpenResty</a>.</em></p>
 </body>
 </html>
diff --git a/html/index.html b/html/index.html
index d7c36e7..b258713 100644
--- a/html/index.html
+++ b/html/index.html
@@ -1,6 +1,8 @@
 <!DOCTYPE html>
 <html>
 <head>
+<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
+<meta content="utf-8" http-equiv="encoding">
 <title>Welcome to OpenResty!</title>
 <style>
     body {
@@ -16,10 +18,11 @@
 working. Further configuration is required.</p>
 
 <p>For online documentation and support please refer to our
-<a href="https://openresty.org/">openresty.org</a> site and <a href="https://blog.openresty.com/">our official blog</a>.<br/>
+<a href="https://openresty.org/">openresty.org</a> site<br/>
 Commercial support is available at
 <a href="https://openresty.com/">openresty.com</a>.</p>
-
-<p><em>Thank you for flying [OpenResty](https://openresty.org/).</em></p>
+<p>We have articles on troubleshooting issues like <a href="https://blog.openresty.com/en/lua-cpu-flame-graph/?src=wb">high CPU usage</a>,
+<a href="https://blog.openresty.com/en/how-or-alloc-mem/">large memory usage</a> on <a href="https://blog.openresty.com/">our official blog site</a>.
+<p><em>Thank you for flying <a href="https://openresty.org/">OpenResty</a>.</em></p>
 </body>
 </html>
