title: Bootstrap download from CDN or save locally
body: <p>I saw a lot of projects where bootstrap is included by a link to a CDN. Does that mean the bootstrap file is downloaded from the internet all the time when the page get reloaded from the server ? Or does the browser cache the side ?  What is actually the best practice. To include by CDN or to download the file locally . What would be the advantage of using CDN vs downloaded file ? An obvious disadvantage of CDN is when you lost your internet connection the whole side has no CSS , so in most cases it would not be usable.</p>