Well since I published this post Google have since made some edits to their robots.txt file which means this no longer works 🙁
I can’t recall seeing this before but it appears that some people have stumbled upon a way to use Google’s own search results pages as a Parasite.
Here’s the results page if it is still working! But it appears the additional “/” in the URL is causing some of the confusion and causing them to appear.
And clicking on the results sends you on an eternal SERP loop – great UX Google!
Thanks to Rob Duckers for sharing