This guide identifies nine common factors that can undermine the credibility of a website, which can deter potential buyers. It outlines that website credibility is contextual and varies based on audience perception. The document details the importance of web design, emphasizing that first impressions are formed within milliseconds. It presents specific credibility killers such as poor design, lack of social proof, absence of security symbols, and grammatical errors. The guide explains how social proof can enhance credibility and suggests methods for its effective implementation. It also discusses the significance of trust symbols and clear return policies in establishing buyer confidence. The document warns against vague language and superlatives, advocating for specificity to enhance trustworthiness. Additionally, it highlights the necessity of including real photos and contact information to affirm company legitimacy. Lastly, the guide addresses the impact of technical issues and negative publicity on perceived credibility, underscoring the importance of maintaining a trustworthy online presence.