title: jQuery CDN caching statistics
body: <p>I'm considering dropping jQuery and replace it with vanilla js code mostly for mobile browsers.</p>
  
  <p>However, I also read that most users have jQuery CDN version already cached in their browser so that they actually don't need to download it. If that is indeed the case for mobile browsers as well, it can save me a lot of code rewriting time.</p>
  
  <p>Since my site is not live yet to get an indication myself, I am looking for general statistics of the estimated percentage of users who's browsers have jQuery library cached versus the users who don't.
  Any help will be appreciated.</p>