I’m trying to increase the page speed, and I need to optimize the images.
Question is: the small thumbnail images on the homepage for each blog post, should these images be sized for the small size they display at before I upload them (noting these images don’t display on the blog posts themselves)? Or is it best practice to increase the size (while maintaining the same proportions)?
Moreover, do you use any special web tools for your measurements? I don’t have access to an iPad mini, and I was looking to find out the max dimensions for both the home page thumbnails and pictures in the actual blogs (approximately speaking); because currently my site with Generate Press theme is fairly slow.
I’ve been using Chromes dev tools, but for the homepage thumbnail I’m measuring ~155×155 pixels (because it’s on my desktop).