Making your proprietary shortcode doesn’t take long whatsoever. You don’t even need an more understanding of PHP to make basic shortcodes, so I’ve assembled a couple of easy steps on the best way to bulid a easy shortcode independent from anyone else. For example we are build RSS Subscription Shortcode.
Create Site Title Shortcode
This will help you to show your site title anywhere in your site it will not take a lot of time to make this simple code. just follow