Not too hard to find if you Google "website that shows random images". Examples: https://r.sine.com/index https://r.sine.com/index, https://picsum.photos/ https

Not too hard to find if you Google "website that shows random images". Examples: https://r.sine.com/index https://r.sine.com/index, https://picsum.photos/ https://picsum.photos/ (refresh to see new image)