Hi, I'm wondering if the webiste loads the entire page or only what is seen?
For example, I used CSS to show some images for desktop and others for mobile. Does the website load both versions nonetheless or do we only load what we see? I need to know because I'm duplicating some sections to change images to lower quality ones, so if the website loads all sections anyway, then I'm just wasting my time and making the website run slower.
Thanks.