Dan Siroker, the co-founder and CEO of Optimizely, a Y Combinator-backed company that helps businesses A/B test their webpages, says he’s got a trick for testing prospective investors. He runs them ...

If you’re running a website, you’ve probably heard of A/B testing, which entails running multiple versions of a site at once and tracking which one performs best with users. But there’s also a pretty ...