The Six Elements Of A Perfect Testimonial - Forbes | The MarTech Digest | Scoop.it
1) A Credible Source

2) Visual Focus

3) Original Content

Every testimonial you place on your website and landing pages needs to add something to the page. 

4) Natural Language

5) A Tight Focus

For your testimonials, keep the focus tightly on supporting the value proposition you build through the rest of your landing page.

6) Details, Details, Details