CACHE BUSTING WITH PHP TIME DOWNLOAD
Most of the browsers will first ask the server whether it is mandatory to download CSS/JS file and the server responds back accordingly. It is browser which does the “web caching”. In such a case cache busting approach is more suitable. Say browser has a CSS/JS file cached since last six months and you want to change a CSS/JS file, for this you need to figure out a way of breaking the cache and forcing the browser to download a new copy. Many times, we are wondering about the reflection of the changes made with CSS/JS files although changes are deployed on the server. Some of the contents that you have to be careful while caching are:
Some of the most cache-friendly data of the most sites are:Īll the above listed content changes infrequently, so it is a better to retrieve it using cache. Continuous Availability of Data: In the case of network interruption, caching can be used to serve the content to the end user even when it is unavailable for a short period of time from server (origin point).When content is cached closer to the client side like in browser cache, it can make retrieval instantaneous. Low Network Usage: Content can be cached at the various stages of the network path between client and server side.The browser cache which is maintained close to the user can helps getting this retrieval quick. Improved Response Time: Caching allows faster retrieval of the content because the entire round trip is not needed.Some of the advantages that caching bring are: If the same data is requested by another user, the browser cache sends the previously stored content and the user request does not need to reach to the origin server again. The main purpose of web caching is to save time if requesting the same resource multiple times and also to minimize the bandwidth by reducing the data required over a network.Īt the time of a requesting data which is downloaded from the origin server, a copy is stored in the web cache for a particular period of time specified by the caching rule set. Each browser has its own caching feature which is where the images and other web assets are stored for quick access later. Caches are found in each layer of a content journey right from the server to browser. Web caching is a core feature of the HTTP protocol utilized to minimize the network traffic by improving the performance of the web. Here we are focusing on the Web Caching and Cache Busting which is the crucial part to take into consideration while developing a website.
Similarly, if the resource is not found in the cache, it’s called a cache miss. When it comes to a request and response, if the requested resource is found in the cache then it’s called as a cache hit. Content caching is one of the most powerful ways to improvise the user experience for your website. There are various types of caches like CPU cache, GPU cache, disc cache, and browser cache, etc. “Caching” is a concept of storing frequently used data to a give quick access locations so that requesting of the data will happen faster.
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