My website dev2qa.com use 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 copy in their data center all over the world. So when client request a web page, and if …
How To Set Http Header Vary Value Correct To Make Cache Work Effective Read More »
My website dev2qa.com use two cdn proxy as a chain to cache my web pages. One is CloudFlare which sit in front of my website dev2qa.com, the other is Ezoic Caching which sit in front of CloudFlare cdn. But some day, i find there are a lot of unuseful response headers in the http reponse, …
When you browse any web page ( google.com, yahoo.com, bing.com ) in modern web browser, if you inspect the request http headers, you can find cache-control : no-cache header. This header is always used in http response header. But why it is used in http request header, this article will tell you the reason.
When web browser request a web page from original web server, the request may go through serveral intermediary proxy or cdn servers like below picture. Each node in the chain ( includes both client browser, cdn proxy server and original web server ) can cache the requested web page resources follow their own cache policy …
How Web Caching Works In CDN ( Proxy ) Chain Use Cache-Control Http Header Read More »
If you use CloudFlare as your website CDN ( http proxy server ), you must want to check whether your web page resources ( css, js, images, html conent ) has been cached by CloufFlare or not. CloudFlare add a http header CF-Cache-Status with various header value in http response to tell you whether your …
How To Verify If CloudFlare CDN Cached Your Website Html Content, CSS, Images, JS Files Read More »
When you develop web application, you sometimes need to vew http headers or cookies value in web browser to verify whether your code execute correct or not. This example will tell you how to find and view the http header value and cookies in both google chrome, mozilla firefox and microsoft internet explorer.
