Do you remember when you could run a “fast” WordPress website with just an Apache server and PHP? Yeah, those were the days! Things were a lot less complicated back then.
Now, everything has to load lightning-fast! Visitors don’t have the same expectations about loading times as they used to. A slow website can have serious implications for you or your client.
Further Reading on SmashingMag: Proper WordPress Filesystem Permissions And Ownerships Moving A WordPress Website Without Hassle How To Develop WordPress Locally With MAMP Do-It-Yourself Caching Methods With WordPress Consequently, the WordPress server stack has had to evolve over the years to keep up with this need for speed.
A Look At The Modern WordPress Server Stack
Varnish Cache is an open-source HTTP accelerator that is used to speed up content delivery on some of the world’s top content-heavy dynamic websites. However, the performance or speed that a newcomer to Varnish Cache can expect from its deployment can be quite nebulous.
This is true for users at both extremes of the spectrum: from those who play with its source code to create more complex features, to those who set up Varnish Cache using the default settings.
View this article:
5 Simple Steps To Test Your Varnish Cache Deployment Using Varnishtest
Phil Karlton once said, “There are only two hard things in Computer Science: cache invalidation and naming things.” This article is about the harder of these two: cache invalidation. It’s directed at readers who already work with Varnish Cache. To learn more about it, you’ll find background information in “Speed Up Your Mobile Website With Varnish.”
10 microseconds (or 250 milliseconds): That’s the difference between delivering a cache hit and delivering a cache miss.
Cache Invalidation Strategies With Varnish Cache
Imagine that you have just written a post on your blog, tweeted about it and watched it get retweeted by some popular Twitter users, sending hundreds of people to your blog at once. Your excitement at seeing so many visitors talk about your post turns to dismay as they start to tweet that your website is down — a database connection error is shown.
Keep calm and try Varnish to optimize mobile websites.
Continue at source:
Varnish – Speed Up Your Mobile Website
We all know that WordPress is awesome — but being awesome isn’t always enough. Does it perform well under pressure? Can it deal with traffic from millions of visitors every month? There’s no question that WordPress can be used for your or my blog, but what about multi-author blogs with thousands of comments? How do developers make it scale and perform?
I spoke with the developers behind some of the biggest WordPress blogs on the planet and asked them to tell me their secrets.
Secrets Of High-Traffic WordPress Blogs