SM Fetch is built to make your website load blazing fast using Prefetch Algorithm. In order to make this plugin work perfectly, you need to :
Have multiple pages in the website. But single page also work, as long as you have Button to link to other pages / website.
This plugin handle the front-end caching. If your current plugin is already handle that part, you can disable that function and use this plugin function to see the differences.
How this plugin work?
User visits a page.
In the background, the algorithm will prefetches other pages data.
When the user visits the next page, it will loads faster because it’s already downloaded.
The data will be stored at User browser (front-end). Not server (back-end).