SEO implications when employing multivariate testing
Posted in Search Engine Marketing | Usability Testing
A client recently asked me if there were any SEO concerns or repurcussions when using multi-variate testing systems such as Touch Clarity, Optimost, Vertster or Offermatica. That was such a good question I figure I should blog my answer.
First off, I should mention that I’m a fan of multivariate testing. It is a wonderful tool to help optimize conversion rates.
With that said, it is not a tool to optimize search rankings. In fact, quite the opposite could happen. If you look at conversion rate in isolation, the system may recommend a version that actually causes the search rankings for that page to tank! For example, if important keywords are removed because they didn’t convert well in the test.
I also like to think like a Google engineer whenever I implement something. I ask myself “What would Matt Cutts think of this?”. According to the engineers on Google’s Webspam team who I’ve spoken to, they want Googlebot to be part of the test set. In other words, they don’t want Googlebot to be excluded from ever seeing the content that real human users in the test set see — which makes sense. But given how multivariate testing is typically implemented, this is not the case. That’s because Javascript/AJAX/DHTML is used to modify the page content. Spiders don’t execute that, so that content is, in effect, hidden. The concern from Google lies in the fact that scuch an approach *could* be used for gaming and spamming.
So, I’m not wanting to discourage you from conducting tests, or from using multivariate testing vendors. Just bear in mind these things when you apply these tests beyond your PPC landing pages and onto your public website. It’s best to have all the information!
