Social proof is any signal that tells a customer other people have already trusted you: reviews and ratings, numbers (‘300+ projects completed’), logos of brands you work with, case studies, photos of your work, content from customers. The mechanism is simple: when people are unsure about a decision, they look at what others like them have chosen.
Which forms work best?
The more specific, the better. A review saying ‘recommended, great company’ does less than a story with numbers: who the customer was, what problem they came with and what changed. Logos of well-known brands work at a glance. In e-commerce, product ratings can decide a purchase, while in services the strongest proof is before-and-after work and video testimonials. UGC is another strong form: content that looks as if it comes from ordinary users carries social proof straight into your ads.
Where should you put it?
Where the decision is made: on a landing page next to the CTA and the form (the moment of greatest doubt), on service pages and in retargeting ads. On the websites we design, the proof section is part of the conversion path. Two rules: the proof has to be genuine and verifiable (bought reviews are a legal and reputational risk), and it has to be kept up to date, because ‘latest project: 2021’ works against you.
Related terms: landing page, UGC.

