There are a number of ways that you can see how quickly your page loads. Ultimately, it comes down to the types of files you have and how large they are. We have some tips for front end optimisation that will make your CDN-enabled site even faster. Here are our top 3 tools:
Pingdom - Test how fast your web page loads
PageSpeed - From Google Developers to evaluate web page performance
GTMetrix - Breakdown of slow loading elements and YSlow Grade