Case Study: WikiJob achieves 34% increase in purchases with VWO

WikiJob A/B Tested Social Proof, Leading To Increased Purchases

WikiJob, the UK’s largest graduate jobs website, wanted to test whether adding social proof would lift conversions on its aptitude tests page. Using VWO for A/B testing, WikiJob set two goals: increase click‑throughs to the PayPal checkout and completed purchases after a previous placement of testimonials lower on the page showed no clear impact.

VWO implemented an A/B test that added three short customer testimonials to the aptitude tests page; the variation with testimonials produced a 34% increase in purchases, demonstrating clear measurable uplift. WikiJob credits VWO with enabling the iterative testing approach that delivered substantial, sustained revenue gains.

WikiJob

Chris Muktar

Founder