If you’re on a Mac, there is a screen capture tool, Grab, already built-in, and when you outline an area on the screen, it will tell you the pixels. But if that sounds scary, there are simpler tools available. If you know how to use the developer tools built into Chrome or Firefox, you can use that. How Do You Know How Wide Your Content Area Is? If it’s going to be used in a slider, make sure you first determine the slider’s dimensions. For blog images, figure out how wide your blog’s content area is, and never upload an image wider than that. So the first thing you need to do is resize your images to the correct size for your site. So while snapping phone pics and uploading to your blog might be simple, it creates a real problem if you want a fast site by adding tons of unnecessary weight.īefore you upload that photo, you need to do two things: resize it and compress it. If I were to take a photo with my phone and upload it to this blog without any editing, I’m going to be uploading a file that is about 3 times as big as it needs to be – a total waste of resources and a drag on page load. If you take a photo with your smartphone, depending on your settings, that photo could be in the region of 2500 pixels wide (or even more) with a file size of 3MB (or 3000KB). To give you a point of reference, the main content column of this blog is 796 pixels wide. The file size is measured in kilobytes (KB) and megabytes (MB) The larger the dimensions of your image, the larger the file size. The dimensions of the image, i.e., how much space on the screen an image takes up, are measured in pixels, and while they do not 100% dictate file size, they are related. And it can be a real game-changer for your WordPress site performance.įile Size Matters: Why You Should Resize and Compress Images Understanding image dimensions and file sizes □ Reducing page size by reducing image size is a simple and effective strategy for improving load time. You can have a small number of HTTP requests, but you will have a problem with your hands if those requests summon giant images. The number of HTTP requests is commonly cited as a factor in load time, and while it is important, ultimately, it’s the page size that is the real indicator of speed or slowness. The load time is 12 seconds, and the size of the page is 8MB. Here’s an example of what un-optimized images will do to your site: In extreme cases, it could be closer to 60% of the loading time. Often this is the single largest factor of the loading time. To give you an idea: images contribute, on average, about 30% of the total page load time. So, if you can get a handle on how to work with and optimize images, you can improve the speed of your site and optimize the Core Web Vitals’ performance.īased on our experience with WP Rocket customers, we know that one of the most common problems is related to heavy pages, which sometimes come packed with high-resolution pictures, photo widgets, and hefty image sliders. Even with caching and a CDN, an unoptimized image will still drag down your page loading time and affect the Largest Contentful Paint score, one of the Core Web Vitals metrics.īut, as the website owner, images are completely under your control. Images are typically one of the biggest (and overlooked) performance issues. Ready to start the ball rolling? Let’s go! Large Images Are One of the Biggest Drains on Load Time Last but not least, you’ll learn how to improve your site’s performance even more through lazy loading. We’ll dig even deeper recommending a very useful WordPress image optimization plugin, Imagify. You’re going to learn everything about how to resize and compress your images, maintain their quality, and how to choose the best online image optimizers. That’s why we’re here to provide you with all the insights about image optimization for WordPress! Google is always wary and ready to judge your moves when it comes to web performance, and you don’t want to disappoint it, right? Images are a crucial element of every website: they make posts and pages more interesting and appealing to read, but they can quickly become a burden for your performance and PageSpeed score.
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