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by no_gravity 3889 days ago
Comparing URLs comes up from time to time here on Hacker News and at one point inspired me to write a tool that batch compares pages visually:

http://www.productchart.com/blog/2015-07-19-urldiff

It renders a set of pages in a headless browser, compares them visually and alerts you if something changed.

Just a few lines of bash as you can see. But it turned out to be pretty useful. UrlDiff is a regular part of our regression testing at Product Chart now.