This video and text Quick Guide explains how to prevent browser caching of CSS files in WordPress. The CSS cache busting tricks here will work outside WordPress, too: you’ll just need your own method of adding query strings.

Sometimes all you need is a good article title to let you know what your problem is.

One reason we love SiteGround is its comprehensive WordPress caching solution, SuperCacher. It sits on SiteGround’s own servers so it’s much faster and better tailored to your site than plugin-based solutions like WP Super Cache, and so if you’re using it you basically don’t need any other WordPress caching solution. This is one the great thing we love so much about SiteGround shared hosting plans.

If you’ve ever migrated a WordPress site to new hosting, you know that one of the many ways the process can turn confusing is DNS caching by your internet service provider (ISP). It looks as follows:

Computer performance revolves, in large part, around the idea of caching: “storing something in a more-ready and quicker-to-access state,” so that you can more quickly deliver the final result. The WordPress Transients API is a tool for caching, and an important way to improve performance in WordPress.

This course works to straighten out the many meanings of several key technical terms.

“Caching” is, generally, the solution you hear offered for most performance problems a WordPress site has. For things other than WordPress sites, too, caching is one of the easiest and most effective ways to increase performance of software without investing in new hardware. (Using the exact same software on hardware that is significantly faster is easier, but probably not cheaper…)

Caching makes everything harder. If you’re writing good code and then you—and your clients, coworkers, etc.—are seeing absolutely no result, the issue is typically caching. In fact, a lovingly cited quote by Phil Karlton holds that “There are only two hard things in Computer Science: cache invalidation and naming things.”

I’ve always been scared of creating PHP cookies. Cookies are an extremely widely used web technology consisting of little pieces of data that live on your device and remember things: for example, the last product you browsed on Amazon, or whether you’re already logged-in to Gmail. As common as they are, though, cookies have always felt like a spooky piece of web architecture that I presumed would be painful and complex to implement.

This week, we interview Hristo Pandjarov from SiteGround. Hristo is helping lead the development of SiteGround’s CachePress caching plugin (want to know how to use that? We explain here)—part of an innovative dynamic caching solution that uses Nginx as a reverse proxy to serve full pages from the server memory.