Will the WordPress plugin slow down your site?

Will the WordPress plugin slow down your site?

The general consensus is YES.

Is this really the case?

Don't generalize!

In this article, I'll delve into how plug-ins affect the speed of your site so that you can review your own plug-ins and determine which ones to keep and which ones to remove.

  • Which plug-ins slow down your site?

You can measure it based on the following experience:

Changing the plug-ins at the front of your site will slow it down, not the ones that affect the administrative back end.

The following examples will be illustrated in detail.

Suppose you have installed a new plug-in to add a social share button at the end of the article. Will this plugin slow down your site? Yes, you can be sure, because it's changing the front end of the site.

Instead, suppose you add a new plug-in to your site that adds a category to your media library. Does this slow down your site? No, because it's just modifying the administrative background, and it doesn't automatically trigger execution.

To understand this more clearly, we need to pinpoint exactly what is slowing down your WordPress site.

  • What caused the website to slow down?


Loading more files and larger files is a major way to slow down a WordPress site.

When visitors arrive at your site, many files are passed from the server to their browser, and the browser's load indicator rotates until all file transfers are complete.

There are three main file types that your site needs to pass to visitors: style sheets (CSS), Javascript (JS), and images (JPG/PNG/GIF).

CSS files are often referred to as style sheets, and they set styles for your web site. For example, all themes load one or more CSS files to provide a unique design for your site.

When you add social media buttons to an article, they need to be styled to look good, so the plug-in must load the stylesheet on your site, which slows it down.

Javascript is often used to add interactivity to a web site. For example, if a visitor is reading an article and displaying a pop-up form, this is using Javascript to display the form, and they can also use it to hide the form when they press the "X" button.

Plug-ins rarely load images, but if you do see new images from the plug-in on the site, this can further affect the speed of the site.

Therefore, we can conclude that if the plug-in adds stylized content to your site, it is loading a CSS file, and possibly a Javascript file, if any part of the content is interactive.

In most cases, no plug-in will directly cause your site to slow down, but if you have multiple plug-ins, it's hard to say.

If you have 20 plug-ins that all load style sheets and Javascript files, the performance of your site will suffer significantly. Even worse: some plugins are really poorly optimized and load extra CSS and Javascript files instead of just one file. Twenty plug-ins like this can slow down your site significantly.

  • How to reduce the impact of plug-ins

As you read this article, you might have this depressing thought:

"So if I want to add a social sharing button or any other cool feature through a plug-in, will it affect the performance of my site?"

Unfortunately. Everything has a cost, and it's important to understand this when managing a WordPress site.

Most of the time, when someone's WordPress site is slow, it's because they've been installing plugins like crazy while unknowingly adding performance costs. These plugins can have a negative impact on the performance of your site, and some plugins that are no longer in use are still active!

If your site is in this state, it's time to clean up your plugins, and when you're done, I guarantee your site will load faster.

  • Disable unused plug-ins

It only takes a minute.

Browse the plug-ins menu, find the plug-ins you no longer need, and then disable them.

If you disable the plug-in, it will not run any code or have any impact on the performance of your site.

In general, you should also remove a stopped plug-in. The only way to keep a deactivated plug-in on the site is if you want to reuse it as soon as possible, such as the maintenance pattern plug-in. Also, when you delete the plug-in, it will probably delete your previous Settings, so if you want to reuse the old Settings, you just need to deactivate the plug-in.

  • Integrate your plug-ins

Once you stop using plug-ins that you don't use at all, you can further reduce the number of plug-ins that are running by removing duplicate functionality.

I've seen a lot of WordPress sites with two plugins that do the same thing. For example, one plug-in adds a social media gadget, while another adds a social button after the article. These plug-ins cannot communicate with each other, so they load their own files (2 times the number of files). The solution? Find a plug-in that can do both.

Integration takes more time and effort, but if you've never done it before, you can remove some plug-ins and make some good money. Also, when you're done, your management interface will be cleaner.

  • Clean up or replace old plugins in a timely manner

A lot of a lot of WordPress plugin, but cannot guarantee that all plug-in has been maintenance updates, so we need regular inspection are using plug-in, if there are updated plug-in, general advice to update, if there is no updated plug-in for more than a year, this time you may need to review this plugin compatibility and security, and try to find new plugins available to replace.

In short, we use the plug-in principle is: do not need to resolutely delete, the same kind of plug-in to keep only one, there are errors, security problems, not updated for a long time plug-in in time to remove or replace.

  • Continually optimize your site

I hope you have a clear understanding of how plug-ins affect site performance.

Once you clean up your plug-in, you'll see an immediate performance improvement

One reply to Will the WordPress plugin slow down your site?

  1. Hey Chris. Este es un tema interesante ya que solía hacer encuestas muchas veces para luchar contra el aburrimiento y ganar algo de dinero extra. El problema que veo en la mayoría de los sitios de encuestas es la falta de oportunidades internacionales. Como residente de Portugal, no tengo la misma oportunidad de aplicar a muchas encuestas como si fuera del Reino Unido o de los Estados Unidos.

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