Noted That:

• To install correctly this specify-a-vary-accept-encoding-header.zip.
• Fisrt Download the specify-a-vary-accept-encoding-header.zip to your computer
• Extract/Open specify-a-vary-accept-encoding-header.zip to Your Computer.
• Then, Find readme.txt file inside specify-a-vary-accept-encoding-header.zip and Open readme.txt.
• Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
• Then, Follow the the Tips Below.

Start the Tips:

1. First Download "specify-a-vary-accept-encoding-header.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "specify-a-vary-accept-encoding-header.zip" Downloaded plugin from your computer, Where you downloaded specify-a-vary-accept-encoding-header.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Specify a Vary: Accept-Encoding Header" folder is added on left sidemenu. Now, Click on "Specify a Vary: Accept-Encoding Header" folder.

   Noted that: If you do not see "Specify a Vary: Accept-Encoding Header" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Specify a Vary: Accept-Encoding Header Configurtions and Settings or How to work "Specify a Vary: Accept-Encoding Header" in your WordPress site.

After Activated Plugin According to Step-6 then,

1. Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
2. or Direct go to: https://yourdomain/wp-admin/plugins.php
3. Then, Find "Specify a Vary: Accept-Encoding Header" Activated Plugin from Plugin List.
4. Then, Click on "Settings" from Plugin that is Specify a Vary: Accept-Encoding Header
5. Now, Edit/Add/Config the setting and Click on "Save Changes" button,

No configuration required.

This plugin can be installed directly through your WordPress Plugins dashboard.
Click “Add New” and Search for “Vary: Accept-Encoding Header”.

Then Install and Activate.

Alternatively, you can download the plugin using the download button on this page and then upload the specify-a-vary-accept-encoding -header folder to the /wp-content/plugins/ directory then activate through the Plugins dashboard in WordPress.