Perhaps you're looking for Percy [0]? Similar functionality unless I'm missing s...

		roldie on June 2, 2015 \| parent \| context \| favorite \| on: Show HN: Diff.io Perhaps you're looking for Percy [0]? Similar functionality unless I'm missing something, but more focused on the CI use case than CMS. [0] - https://news.ycombinator.com/item?id=9624673