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How to make Ajax Cacheable for website optimization

One of AJAX’s benefits is it provides instantaneous feedback to the user because it requests information asynchronously from the backend web server. However, using AJAX does not guarantee the user will not wait for the asynchronous JavaScript and XML responses ...

How to use Cookie-Free Domains for static content

An HTTP cookie (also known as web cookie, Internet cookie, browser cookie, or simply cookie) is a small piece of data sent from a website and stored on the user’s computer by the user’s web browser while the user is ...

How to Specify a Cache Validator for a Webpage in PHP

What is a Cache Validator? A Cache validator is defined within HTTP request and response headers and help determine if it is still valid to retrieve a file from the browser’s cache. Cache validators are important as they determines whether ...

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