speedometer for WordPress

The Best caching plugins to Speed Up your WordPress in 2020

Improving the loading time and performance of your WordPress Website must be a priority.  There are already plenty of tutorials about how to optimize and speed up WordPress. But sometimes, performance optimization quickly becomes technical, especially when it comes to caching.

That is why I’ll focus on caching plugins and how to use them to speed up your website.

Before going to the list, let’s have a small recap about the importance of caching in WordPress.

The essential of WordPress Caching

What is WordPress caching?

Caching is the best way to speed up WordPress websites. Caching creates static copies of your pages and posts and display it to visitors. Static content is loaded more quickly because it limits the amount of requests generated between WordPress and your database.

That’s mainly why caching a website leads to faster performance. The easiest way to enable caching in WordPress is by means of plugins.

Why is it important to speed up your WordPress website with a caching plugin?

We encourage you to start looking at your site’s speed (the tools above provide a great starting point) — not only to improve your ranking in search engines, but also to improve everyone’s experience on the Internet.

Amit Singhal and Matt Cutts (Source: Using site speed in web search ranking)

Using a caching plugin has so many benefits. It’s excellent for user experience, search engine optimization and can help your serveur to deal with traffic spikes.

User experience: cached websites load faster than dynamic database queries. This is important because 40% of visitors leave a website that takes more than 3s to load (Source: How Loading Time Affects Your Bottom Line).

SEO: Google’s algorithm significantly takes site speed into account to define search rankings.

Traffic spikes: Caching also helps reduce the load on your serveur to preserve server memory and prevent downtimes from happening. If you don’t have a good WordPress Managed hosting, cash plugins can save your website life.

How do WordPress caching plugins work?

The process of loading a site can be summarized in 5 steps:

  • Step 1: the visitor clicks on a link to access your website;
  • Step 2: the visitor’s browser sends a request to your serveur;
  • Step 3: Your serveur agrees to process the request;
  • Step 4: Your serveur starts processing files and database requests to display your website;
  • Step 5: Once it’s done, the website is actually sent to the visitor;
  • Step 6: Your website is displayed in the visitor’s browser.

It is therefore a complex round trip between the browser and your hosting provider involving many exchanges with your database.

The loading time is therefor determined by two criteria: the size of the files to be processed and the number of requests to your database.

We can explain, in a very simplified way, why a WordPress site load slowly with this formula: (total file size) x (number of requests) x (the performance of your web host) = loading time

If you have time and want to understand everything about performance optimization for WordPress, take a look at this article: How to Speed up Your WordPress Site (Ultimate 2020 Guide).

It’s the most comprehensive guide on performance optimization for WordPress available on the internet, but it’s (too) long.

Best WordPress caching Plugin Comparison for 2020

Test the performance of your website for free

Test the performance of your website for free