A a caching plugin ensures that the content on your webpage does not affect your speed and that you can continue adding information to provide your users with the best content.
There are a lot of different websites available, of various sizes, with different content and information.
Some, like blog and magazine websites, rely on text, images, and videos. These elements make the web page exceedingly heavier and which will result in it taking longer to load.
Image heavy websites (like a photographer’s website, for example), will also take longer to load because of the sheer amount of information.
So is the case with ecommerce websites, where there’s a lot of static, but also dynamic content (shopping items), which make the website heavier, so why not reduce the loading speeds of all the static bloat and make sure that your users have a better experience?
Note: dynamic content can also be cached by using a CDN cache instead of the original, probably distant server, thus reducing the time it takes to load.
Caching, therefore, increases the loading speed of websites and according to Google, “no matter what, faster is better and less is more”.
Note: Using caching plugins is not the only method to increase your websites speed, and should be done in concurrence with other methods which are listed in these great articles: How to Speed up Your WordPress Website — Part 1 and How to Speed up Your WordPress Website — Part 2
Now that we’ve established that you need caching plugins for better loading speed, let’s understand why you need better loading speed times.