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JavaScript Caching Test

What is it?

Checks if your page is using caching headers for all JavaScript resources. Users browsers will check for these headers and, if any, will cache the JavaScript resources until the specified date (so that it does not keep re-fetching the unchanged file from your server). This speeds up your site the next time returning visitors arrive at your site and require the same JavaScript resource.
Check your URL:

How do I fix it ?

In order to reduce the number of HTTP requests, you can use the HTTP Expires header to set an expiration time for your JavaScript resources or any other content type. You can add the following lines into your .htaccess file:
<IfModule mod_expires.c>
    ExpiresActive on
 
    ExpiresByType text/javascript "access plus 1 month"
    ExpiresByType application/javascript "access plus 1 month"
   </IfModule>
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