If you are using WordPress for anything critical beyond your local football team, then you know that the use of a cache plugin is a must.
WP Super Cache is the best known cache plugin, if not the most famous plugin of all. Initially it did not play well with admins that also wanted a mobile presence and it is very simple to explain, the whole purpose of the cache is to generate the file dynamically once, store it and then serve it again without any further computation. As the years went by, mobile became more important and WP Super Cache integrated a basic mobile support. Recently donncha introduced a fundamental new feature, the ability for other plugins to define actions. I will not go into the details of how this works and what you can do, you can read all of it on the WordPress site.
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