While existing Google Analytics tags will continue to function, the new support means the installation of the new Asynchronous tags is simple.

Google has made a number of significant modifications to the operation of their Analytics tag, adding support for a new HTML 5 attribute, wrapping their calls up to avoid namespace conflicts and implementing a more robust way of adding their script resources into the parent page.

All these mods allow Google Analytics to be loaded faster and more reliably – capturing more visitor data, especially where the dwell time on the page is short, or the page is loading a lot of script resources.