No-Cache vs No-Store

참고 사이트

http://wpcertification.blogspot.com/2010/07/difference-between-no-cache-and-no.html

cyberx.tistory.com/9

 

No-Cache : 

• The browser may re-use the image
• but browser will always check the content’s change from origin
  If the origin’s image is updated : the image will be fetched from origin with 200.
  If the origin’s image is not updated : 304(Not Modified) will occur.

 

No-Store :

• Do Not Store the Content at all (The browser may not re-use the image)
• The Server will always return 200 code(unless special settings such as “If-Modified-Since” is set).

Private:

• 브라우저는 캐싱가능하나 CDN 서버 캐시는 허락하지 않는다.

Public

• CDN서버에 캐시를 허락한다.