콘텐츠를 효율적으로 전달하기 위해 여러 노드를 가진 네트워크에 데이터를 저장하여 제공하는 시스템을 말한다.[1]
자주 사용하는 CDN
jQuery
https://code.jquery.com/
jQuery 3.x
- https://code.jquery.com/jquery-3.1.0.js
- https://code.jquery.com/jquery-3.1.0.min.js
jQuery 2.x
- https://code.jquery.com/jquery-2.2.4.js
- https://code.jquery.com/jquery-2.2.4.min.js
jQuery 1.x
- https://code.jquery.com/jquery-1.12.4.js
- https://code.jquery.com/jquery-1.12.4.min.js
Bootstrap
v3
https://www.bootstrapcdn.com/
- https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css
- https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js
v4
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>