Network Tutorial

How To Configure Cloudflare Page Rule To Fix Cf-Cache-Status DYNAMIC Issue

When you use Cloudflare as your website CDN server, you always need to know whether the web page is cached by Cloudflare or not. And Cloudflare returns some HTTP response headers when you request the web page,  you can get the web page cached status from those response headers. One of the response headers is

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How To Remove Cookie In WordPress Plugin Wp Super Cache Http Response Header Vary

WP Super Cache is a very popular WordPress plugin. It can generate an Html version of all your WordPress articles. Then when the client browser requests your article, it will return the Html version instead of executing the dynamic web page. This can improve page response speed and make your website more efficient. But when

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How To Set Http Header Vary Value Correct To Make Cache Work Effective

My website dev2qa.com uses Ezoic caching function to cache all my website pages. This can improve my website page access speed. Ezoic proxy server will create a copy of my website page and save those web page copies in their data center all over the world. So when a client requests a web page, and

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How To Connect Directly To Your Origin Web Server Bypass Intermediary Proxies To View Original Http Headers

My website dev2qa.com uses two CDN proxies as a chain to cache my web pages. One is Cloudflare which sits in front of my website dev2qa.com, the other is Ezoic Caching which sits in front of Cloudflare CDN. But someday, I find there are a lot of unuseful response headers in the HTTP response, and

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Why Browser Send No Cache In Http Request Cache Control Header

When you browse any web page ( google.com, yahoo.com, bing.com ) in a modern web browser, if you inspect the request HTTP headers, you can find the cache-control : no-cache header, this header is always used in the HTTP response header. But why it is used in the HTTP request header, this article will tell you the

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How Web Caching Works In CDN ( Proxy ) Chain Use Cache-Control Http Header

When a web browser requests a web page from the original web server, the request may go through several intermediary proxy or CDN servers like the below picture. Each node in the chain ( includes both client browser, CDN proxy server, and original webserver ) can cache the requested web page resources follow their own

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