We all use images and visuals, in general, on our sites. It’s inevitable nowadays. But the more images we upload, the more they impact the speed of the site. And a slow site can further lead to many other negative outcomes, which we will briefly cover later in this post.
So images can be troublesome if we do not optimize them, either by ourselves or with plugins. In this article, we will show you how to get rid of the unnecessary data that hides in your WordPress media library by compressing all the images without affecting their quality. Your pictures will look the same, it’s just their size that changes.
Without further ado, let’s dive into the best ways to optimize the images on your WordPress site with the least effort.
Through image optimization, you can reduce all the images on your WordPress site to their minimum size without making it noticeable to the naked eye.
Everyone should pay special attention to image optimization because it’s one of the most common ways to significantly increase the speed of a website. What’s nice about image optimization is that it doesn’t require any development skills, so it’s quite easy to achieve by any website owner.
Now, you can either keep track of every image you upload on your site and make sure to adjust and resize it manually, or you can use a plugin that will optimize all the images for you on autopilot.
Why Do You Need Image Optimization?
But now let’s talk a bit about why image optimization is important for your site and why you should not think twice before implementing it.
The main reason why you should use image optimization on your WordPress site is that it helps improve the page loading times on each web page. Images weigh considerably, especially if you upload them in their full dimension. You may not notice the consequences after each uploaded image but, with time, every small data added to your site contributes to a heavy page load.
According to Unbounce, pages that load faster than two seconds have an average bounce rate of 9%, while the pages that take five seconds to load have a bounce rate of 38%. That translates into less user engagement and fewer conversion rates.
Image optimization also improves your SEO ranking. How so? It’s just a Google thing. Starting with 2010, Google officially announced that the page speed will play a major role in the ranking algorithm. So, if you have a slow website, your chances of seeing your site at the top in the SERPs decrease.
Which leads us to lose conversions. The lower you rank in Google, the more your conversions drop. If your site’s SEO ranking improves, then more viewers or buyers will enter your page and will likely click on a call-to-action. Or, at least, spend more time on your site and engage with your content.
So, as you can see, image optimization is directly linked to website speed, SEO, and conversion rates. A small, but vital role in this business chain.
Image optimization can be done either manually (you take one image at a time and compress it following the best practices) or with a tool that will handle all the hard work for you on automatic mode.
Further on, we will discuss how you can optimize WordPress images automatically and avoid the extra work of doing it yourself.
How to Optimize Your Images on Your WordPress Site
Optimize Images Manually
Anyway, if you’re a fan of ‘do it yourself’ method, you can optimize the images manually… if you have the time for that. I mean, if your business profile entails using many images, then your job will be tough since it’s going to take precious time away from you.
You can resize and crop the images by yourself before uploading them. If you want to do that, it’s important to find out the maximum display size of your images so that you won’t exceed the size limit which will make the images look pixelated to your visitors. The maximum display size is actually the largest resolution an image can be displayed at on a site, in light of all the user viewports and screens that will access it. Learn more on how to serve images of the correct dimensions.
After handling the minor task of cropping and resizing, you can actually go deeper by compressing the images with an online tool like Kraken or ImageResizer, that work for both JPG and PNG.
Finding the right image format is also important because it can save you many megabytes. For instance, the simple fact that you’re using JPG for graphics and logos can cost you extra disk space. Why? Because you can get the smallest size possible of an image if you save it in the right format, and that depends on the image type.
If you upload mostly images with a large variety of colors, JPG is the right format. But if you use graphics, illustrations or icons in your posts (usually images with only a few colors), you might want to upload them as PNGs because this format is the best one to keep them at a minimum size. If you convert a PNG image to a JPG, its size will increase and will probably look blurry as well. The vice versa is also valid. Smashing Magazine did a few tests on how sizes change per each image format.
Set the Image Optimization on Autopilot
If you’re more of a time-saver and full efficiency is what you care for the most, then you can simply install a plugin that will do all of the above (and more) in seconds for you.
Optimole is a good example of a lightweight WordPress plugin with a smart functionality under the hood.
First of all, Optimole only optimizes an image when it is requested by the server. So, if you upload an image, it will be optimized when a user will access the page that contains it, right on the spot. After you install the plugin you just have to let it do its job, but not before you set your preferred optimization method – high, medium or low.
Second of all, Optimole resizes every image to the optimal size for each visitor’s viewport, so that it loads fast on any device. It will find the perfect dimension and size based on every visitor’s device type. On the same note, if the user’s connection is slow, Optimole will downgrade the quality of the image for that specific user, so that the page will still load fast and the image will show up quickly.
As far as our experience with WordPress goes, this plugin comes with all the features a user needs from an image optimization tool, all packed and delivered via a simple and user-friendly interface. This is the kind of plugin that you just install and forget it exists. That’s because it will work alone in the background, optimizing the images automatically so you can focus on the more important projects of your business.
How to Optimize Your WordPress Images Automatically
Next, we will show you how to optimize all the images on your WordPress site on autopilot. All you need to do is to install a plugin, set your preferences, and forget about it.
In order to do so, install and activate Optimole for free. After installing and activating the plugin, you must register via email in order to generate an API key that you will introduce in your WordPress dashboard.