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Usually, my side bar careers block is orange, but on some occurrence it's blue ! Is stack exchange proceeding to a-b testing to see which color is the best ? Is it random ? Is it based on some condition I couldn't find ? :D
This out of pure curiosity, I'm just wondering.
Yes, like many sites we sometimes conduct A/B tests like this. Right now, on Stack Overflow, some people will indeed see an orange version of the Careers ad in the sidebar, and other people will see a blue version.
