Hi, AT.js 2.x can be used on both MPA's and SPA's.AT.js 2.x has advantages over AT.js 1.x. So, it is recommended to use AT.js 2.x for both your Non SPA's as well as SPA pages.AT.js 2.x and AT.js 1.x can be used on the same website, but not on the same page of the website.I apologize that the answer...