Social proof is information showing that other people use or value a product. It is like seeing a busy café and thinking that others found a reason to visit.
A website might show real customer reviews, a user count, or a testimonial. These signals can help a new visitor judge whether a product is trusted or useful.
Use accurate, current evidence and explain what a number means. Made-up reviews or vague popularity claims can damage trust instead of building it. Social proof supports a decision; it should not pressure someone into making one.