http://xxxx.com/是一个不可缓存的重定向到https://xxxx.com/

错误说明了一切。为了使其在浏览器中使用 R = 301 永久缓存：

  RewriteEngine叙述上

的RewriteCond％{} HTTPS关闭
重写规则^的https：//％{HTTP_HOST}％{REQUEST_URI} [L，R = 301，NE]
 

I am not at all familiar with htaccess. I need Htaccess code which will redirect http to https. I am using below code:

RewriteEngine On
RewriteCond %{HTTPS} !on
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

But main problem is, I am getting below suggestion, when trying to test server speed:

To speed up page load times for visitors of your site, remove as many landing page
redirections as possible, and make any required redirections cacheable if possible.

http://xxxx.com/ is a non-cacheable redirect to https://xxxx.com/

So, how to make it cacheable ?

http://xxxx.com/ is a non-cacheable redirect to https://xxxx.com/

Errors says it all. To make it permanently cacheable in browser use R=301:

RewriteEngine On

RewriteCond %{HTTPS} off
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301,NE]