There are three kinds of testimonials you can test on:
- Text only. Putting positive testimonials on your site can increase sales by 34%. Consider adding customer photos next to each text testimonial. Photos featuring people can double your conversion rate.
- Audio. You can easily produce audio testimonials using Google Voice. When a client calls the audio testimonial Google Voice number and leaves a voice message, the transcript of that call and the audio file will go into your Gmail email box.
- Video. Since implementing testimonials, a video training company saw a 20% increase in conversion rates.