html expires header

There are many kinds of caches: Server cache, third-party cache, browser cache, and so on. The browser cache is the least expensive, because the browser cache relies on the client and consumes little server-side resources.Making the browser cache

1, ETag and expires the client-side HTTP Request header and server-side HTTP reponse Header working principle. 2, static under the Apache, Lighttpd and Nginx ETag and expires configuration 3. ETag and expires processing in non-real-time

1. How the Client-side Http Request Header and Server-side Http Reponse Header work in Etag and Expires. 2. Static configuration of Etag and Expires in Apache, Lighttpd, and Nginx 3. Etag and Expires processing on dynamic pages with non-real-time

Header usage The Header () function sends an original HTTP header [HTTP header] to the client.The header is the string sent by the server before the server passes HTML data to the browser with HTTP co-meaning.Separate HTML files with a blank line.

This article is based on RFC2616 (http/1.1 specification), referencehttp://www.w3.org/Protocols/rfc2068/rfc2068http://www.w3.org/Protocols/rfc2616/rfc2616Http://www.ietf.org/rfc/rfc3229.txtTypically HTTP messages include client-to-server request

This article is based on RFC2616 (http/1.1 specification), referencehttp://www.w3.org/Protocols/rfc2068/rfc2068http://www.w3.org/Protocols/rfc2616/rfc2616Http://www.ietf.org/rfc/rfc3229.txtTypically HTTP messages include client-to-server request

This article is based on RFC2616 (http/1.1 specification), referencehttp://www.w3.org/Protocols/rfc2068/rfc2068http://www.w3.org/Protocols/rfc2616/rfc2616Http://www.ietf.org/rfc/rfc3229.txtTypically HTTP messages include client-to-server request

Turn from: http://www.cnblogs.com/yizhenfeng168/p/7078480.htmlIn this paper, according to RFC2616 (http/1.1 specification), reference http://www.w3.org/Protocols/rfc2068/rfc2068 http://www.w3.org/Protocols/rfc2616/rfc2616 Http://www.ietf.org/rfc/rfc3

In this paper, according to RFC2616 (http/1.1 specification), reference http://www.w3.org/Protocols/rfc2068/rfc2068 http://www.w3.org/Protocols/rfc2616/rfc2616 Http://www.ietf.org/rfc/rfc3229.txt Typically, HTTP messages include the client's request

  One of the most important factors in front-end optimization is to set a long expiration time. For example, Yahoo expires is set to 10 years, and pageSpeed is recommended for more than one month. The purpose of setting expires is to prevent