What was the percentage of space saved while compressing?.What was the file size of the compressed image?.Does it offer multiple compression levels?.Does it offer NextGEN Gallery integration?.Is it a SaaS system (software as a service) or a standard plugin?.
Does it require an account or can it be used just by installing on your site?.We were looking for very specific things with each plugin tested. We also kept all the image optimization plugins set to their default settings in order to keep a level playing field. So we wound up creating a development site on a high-end cloud server.īefore uploading images we disabled the built-in WordPress image compression by using this plugin. However, it turned out that some of the plugins we tested required a live server on the Internet. We initially started testing locally, using Local by Flywheel. This photograph was picked as the control on purpose, to cover a wide variety of items that photographers would look for in a compressed image file.
#APP IMAGEOPTIM PROFESSIONAL#
It's a professional wedding photograph which shows a bride and groom, movement, high contrast, a lot of color, skin, and texture. We started with what we are calling the "control" image. The goal was for a well-compressed image with minimal to no quality degradation. But we want to point out that the test's goal was not for SEO specifically, although it was a factor in the comparison. So we decided to run some official tests to determine what our preferred and recommended image optimization plugins are.įor the tests, we focused on a variety of factors, which we will get into shortly. We're often asked for our recommendations for image optimization plugins.