![]() ![]() Google's page speed also detects these cases and alerts them as well. Optimize images, turn on lazy load, resize, compress & improve your Google Page Speed with the incredibly powerful and 100 free WordPress image smusher. There are many tools to analyze your site speed such as Google PageSpeed Insights. In these cases, the ICC profile can increase the file to a larger size than necessary. Before you can optimize your site speed, you need to measure it and identify the areas that need improvement. There could be cases where images may include an ICC profile, which is a metadata that's embedded into the image. This would make sure that the image is delivered in the same rectangle it is displayed in. What can be done in this case is use Cloudinary's resizing capabilities to deliver the image in the fitting proportions: If the original image is larger than the rectangle that it is displayed in, Google's page speed tool can detect that. Dont worry if you have too many images plugins stores list of already optimized images and doesnt optimize. However, it is resized and delivered in a 200X200 rectangle: Plugin compresses images without loosing quality. In some cases a larger then necessary image is being loaded on the site, and then resized using HTML or CSS.įor example, the below sample image is originally 864X576 px. The image is resized by HTML/CSS while the image itself is large. If you don't care much about such artifacts it's possible to use q_auto:low(or q_auto:420) in order to force chroma subsampling and make Google's PageSpeed tool happy :)Ģ. According to Think with Google, when your page load time increases from one second to three seconds, the probability of bounce increases by 32 percent. ![]() In these cases, PageSpeed would then say that the image can be further optimized. If you’re an e-commerce site making 10,000 a day, a one-second page delay could cost you 2.5 million per year. In those cases, our `q_auto` algorithm would "decide" to deliver the image in a format that does not support chroma subsampling like the "jpeg" format for example. However in some cases, using chroma subsampling on images would introduce significant artifacts to the image, and would make the image look bad. When using Cloudinary's `f_auto,q_auto` in most cases the image would indeed be delivered in a `webp` format which is chroma subsampled, when applicable. Images on your page should first be properly sized based on their rendered dimensions. Consider the following for each image on your page. So if it sees a non-chroma subsampled image, it recompresses it with chroma subsampling and this will indeed make the file smaller, at the cost of introducing compression artifacts. Your Google Page Speed Insights is also important if you're doing SEO, since Google uses loading speed as a ranking factor. Google's PageSpeed tool assumes that 4:2:0 chroma subsampling is always OK for any image. There are some cases that even when using `f_auto,q_auto` PageSpeed shows that the image can be further optimized. When using Cloudinary to deliver images, it's possible to use Cloudinary's "f_auto,q_auto" parameters to automatically optimize your images for speed and delivery. One of the most popular tools to benchmark loading speed of a page is Google's PageSpeed. ![]()
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