http expires header

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HTTP Header Description: Expires,cache-control,last-modified,etag

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

ETag and Expires Performance Tuning _ server Other

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

Etag and Expires Performance Tuning

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

Nginx expires control page Caching _nginx

Syntax: Expires [TIME|EPOCH|MAX|PFF] Default: Offexpires Command controls the "expires" and "Cache-control" header header information in an HTTP response, and starts controlling the page cache for time: You can use positive or negative numbers. The

Browser cache related HTTP control header (Last-modified/etag/expires/cache-control) detailed

Browser cache, also known as HTTP cache, refers to when we browse the site, the browser will store a copy locally, so that the next time you visit the same URL can no longer connect to the server, directly from the browser local cache to obtain

Python crawler: HTTP request Header (header) detailed

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

HTTP Header Detailed

The HTTP header field includes class 4:     general-header; Generic headers      request-header; Request Header      Response-header; Response Header      Entity-header. Entity Header  *****************************************************************

HTTP Request Header Detailed

The HTTP header field includes class 4:     general-header;     request-header;      Response-header;     Entity-header.  ********************************************  general Header fields=============================   General Headers are

Python crawler: HTTP request Header (header) detailed

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

Python crawler: HTTP request Header (header) detailed

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

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