Title: Jetpack Boost
Last modified: August 23, 2022

---

# Jetpack Boost

 *  Resolved [stssteal](https://wordpress.org/support/users/stssteal/)
 * (@stssteal)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/jetpack-boost-4/)
 * Good Evening
    I installed Jetpack Boost and it gives me the following error can
   you help me
 *     ```
       {
         "code": "site_inaccessible_404",
         "message": "The Jetpack server was unable to communicate with your site https://www.stealthestyle.gr [HTTP 404].  Ask your web host if they allow connections from WordPress.com. If you need further assistance, contact Jetpack Support: http://jetpack.com/support/",
         "data": 400
       }
       ```
   
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fjetpack-boost-4%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Support [Animesh Gaurav](https://wordpress.org/support/users/bizanimesh/)
 * (@bizanimesh)
 * [3 years, 9 months ago](https://wordpress.org/support/topic/jetpack-boost-4/#post-15948999)
 * Hi there,
 * While your site is publicly accessible, we cannot access your site’s XML-RPC 
   file: [https://www.ENTER-YOUR-SITE-NAME.gr/xmlrpc.php](https://www.ENTER-YOUR-SITE-NAME.gr/xmlrpc.php)
 * This file is used by Jetpack and other plugins and apps to connect to your site.
   And that’s why Jetpack Boost is not able to connect with your site. It must return
   the following message: XML-RPC server accepts POST requests only.
 * You can see a working example here: [https://wp.cloud/xmlrpc.php](https://wp.cloud/xmlrpc.php)
 * Since your site returns a 404 error for this page, I would recommend that you
   check the following:
    - Can you see the /xmlrpc.php file at the root of your WordPress installation
      when accessing your site via FTP? If you don’t, then please try re-installing
      WordPress. You can do this by going to the Dashboard » Upgrades page, then
      clicking the “Reinstall” button.
    - Do you use any security plugins that may block access to this file? If so,
      could you try to disable them? You might also want to check your site’s .htaccess
      file for any rules that might be blocking access to the xmlrpc.php file.
    - Does your hosting provider block access to this file? If you don’t find any
      plugin that may block access to the file on your site, I would recommend that
      you get in touch with your host.
 * Once we are able to access your site’s xmlrpc.php file, the Jetpack Boost should
   start working.

Viewing 1 replies (of 1 total)

The topic ‘Jetpack Boost’ is closed to new replies.

 * ![](https://ps.w.org/jetpack-boost/assets/icon.svg?rev=2818794)
 * [Jetpack Boost - Website Speed, Performance and Critical CSS](https://wordpress.org/plugins/jetpack-boost/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/jetpack-boost/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/jetpack-boost/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/jetpack-boost/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/jetpack-boost/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Animesh Gaurav](https://wordpress.org/support/users/bizanimesh/)
 * Last activity: [3 years, 9 months ago](https://wordpress.org/support/topic/jetpack-boost-4/#post-15948999)
 * Status: resolved