}

An agency asks a prospective client to hand over something most ecommerce stores never touch: direct access to ad accounts, website backends, budgets, and sometimes customer data, before a single deliverable exists. That's a different kind of trust ask than selling a product.
A client buying a physical product can return it if something goes wrong. A client hiring an agency is committing budget and access based almost entirely on reputation and a sales conversation, with no tangible proof of competence available before the engagement starts.
Beyond quality of work, prospective clients weigh whether the agency is a real registered business, whether it will still exist in a year, and whether it handles ad account access and client data responsibly. A portfolio answers the first concern; it does nothing for the other two.
Case studies are written and selected by the agency itself, which makes them a marketing asset rather than independent proof. A prospective client evaluating an unfamiliar agency has no way to check whether the business behind the results is who it claims to be.
Verification of legal registration, data handling practices, and business identity gives a prospective client something to check that isn't written by the agency itself. This is the same gap we cover for other business types in business verification badge, what "verified" actually means.
Welo Badge verifies an agency's legal identity, security practices, and policy transparency against the Welo Trust Standard, and publishes the result on a public Welo Page a prospective client can check independently. If you run an agency and want a way to prove legitimacy beyond a pitch deck, you can apply for Welo Badge.