Loading page fragments is a great way to offer a smooth user experience and to optomize performance. You can either load an entire page and use a contentSelector to select the appropriate node to insert, or you can load a smaller page fragment. You can also work with json and create the HTML fragments yourself.

Below you will find various test setups for working with retrieving page fragments.

If you are replacing a traditional pagination widget with this approach you might want to consider keeping the pagination in place but hidden for SEO purposes.