One of the most important tools in securing high-performance web content delivery is caching. But when we talk about caching, we often refer to static content that never changes and doesn’t contain any personalized information. Dynamic content, which changes frequently and is often used to personalize web experiences, isn’t easily cached because it contains content specifically tailored to an individual user.
In this week's 2-Minute Tech Tuesday, we'll be discussing banning, which is a mechanism in Varnish to remove outdated content from the cache so that new content can be presented immediately, rather than waiting for the cache to expire.
In this week's 2-Minute Tech Tuesday we'll be talking about "purging", which is Varnish's built-in mechanism to remove non-expired objects from the cache.