Installation

Installing Slim SEO is very easy. The plugin is free and hosted on WordPress.org. So, you can install it right from within your dashboard as follows:

Go to your WordPress Dashboard > Plugins > Add New
Search for "slim seo"
Click Install button to install the plugin
Click Activate button to activate it

Install Slim SEO within WordPress dashboard

Or you can manually download and install Slim SEO if you can't install it with the method above:

Click the Free Download button in the header of this website to download the plugin file (.zip)
Go to your WordPress Dashboard > Plugins > Add New
Click the Upload button
Upload the downloaded .zip file
Activate the plugin

After installing, Slim SEO works automatically even without any configuration.

The plugin also adds a settings page under Settings > SEO just in case you want to insert some scripts from Google Analytics or alike. See the documentation for Header / Footer Code for details.

Now your website is auto optimized by Slim SEO. To understand what the plugin does, check out the feature list of Slim SEO on the left menu.