Pjax module
Easily enable fast Ajax navigation on any website
...It allows you to completely transform the user experience of standard websites (server-side generated or static ones) to make users feel like they are browsing an app, especially for those with low bandwidth connections. Pjax does not rely on other libraries, like jQuery or similar. It is written entirely in vanilla JS. Pjax loads pages using AJAX and updates the browser's current URL using pushState() without reloading your page's layout or any resources (JS, CSS), giving a fast page load. It works with all permalinks and can update all the parts of the page you want (including HTML metas, title, and navigation state). ...