Testimonial
Testimonial

Definition
A testimonial is a verbal or written statement affirming the performance, quality and/or value of a product or service to potential or existing customers. Testimonials are a form of social proof as people often look to others in times of uncertainty (e.g. the first time they purchase a product) to guide their decisions.
Resources:
Conversion marketing – Glossary of Conversion Marketing.
Over 300 tools reviewed – Digital Marketing Toolbox.
A/B testing software – Which A/B testing tools should you choose?
Types of A/B tests – How to optimise your website’s performance using A/B testing.