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Probably the easiest way of increasing page speed and reducing bandwidth is shrinking and optimizing your images. Compressing images will help you do that. If done right, it won't affect the quality of the images. It's becoming the norm, so thankfully, it's easy to do with free online services and plugins.
Here are few tools that can help with image compression:
This image was compressed by over 70%
If you're using WordPress, it's straightforward to optimize your images through plugins. Besides the services above that offer a plugin, here are a few more:
In addition to compressing images, you may also want to consider using the WebP image format, a newer format developed by Google. It's been shown to reduce image size by over 80% in some cases. However, it isn't supported by all browsers, most notably Safari and Internet Explorer. Firefox doesn't yet, but they have announced plans to support it natively.
But when you use WebP, it doesn't replace your existing JPEG or PNG files. So if visitors are using a browser that doesn't support WebP, they'll be shown the other version. Yes, this means you have more images on your site, but if most are displaying the WebP version, it can still dramatically decrease the size and weight of your site, making it run faster.
And there's a WordPress plugin for doing so - Optimus Image Optimizer.
Even for unsupported browsers, WebP support can be added through the use of the WebPJS library.
Written by Hostwinds Team / June 5, 2021