external-preview.redd.it/mvaUbjRbKQ06heCvh7rzcwuhk

What is the source of the external preview in the following reddit post? (link in the description) : r/NoStupidQuestions

How to convert a external-preview to a preview/i.redd.it image? : r/help

preview.redd.it Image URLs : r/redditdev

preview.redd.it Image URLs : r/redditdev

How to upload galleries on preview.redd.it - Quora

How to convert a external-preview to a preview/i.redd.it image? : r/help

How to upload galleries on preview.redd.it - Quora

Unable to load preview.redd.it images in posts : r/apolloapp

How to upload galleries on preview.redd.it - Quora