I notice a significant increase in the number of credits with ShortPixel Adaptive Images. Why?

Are you using ShortPixel Adaptive Images (SPAI) and noticed a substantial increase in the number of credits being used? Moreover, can you see the same image on the Optimization Report with lots (dozens) of slightly different widths and are you asking yourself what's going on?

Here is the reason why you are experiencing this: Your website is using a (very) responsive theme. This means that for a single image, there are many different versions of it (with different widths) being generated in a small period of time. While this is ideal from an end user/SEO point of view, we understand that it is not ideal for you in terms of the number of credits used.

To minimize this, you can use the Autoptimize plugin which also uses ShortPixel's CDN & Image Optimization but doesn't serve adaptive images. This way you won't end up using as many credits as you use with ShortPixel.

We're working on a new ShortPixel Adaptive Images version that will not generate as many precisely sized thumbnails but instead will use some ranges. For example, instead of having 3 different thumbnails with widths of 345px, 370px and 381px, you'll only have a single thumbnail with a width of 400px. This approach will be better than using Autoptimize, so please stay tuned to your WordPress updates.

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