Credibility Definition A measure of how believable and trustworthy your marketing is perceived to be. You can communicate credibility by including security badges, ratings, reviews and testimonials on your website or landing page. Conversion expert Peep Laja explains how to make your offers more credible by providing proof. “Your digital credibility's a currency. Once your credibility goes down, you’re unlikely to regain it.” — @ElisaKapha Tweet This Resources 9 Ways to Develop Credibility on Your Landing Page How to Use Social Proof to Build Credibility and Drive More Conversions 39 Factors: Website Credibility Checklist