Wunderman is one of the latest agency arrivals, having been attracted by the incredible customer service that WebProof provides. At the same time, both internally and with their customers they all achieved a great central overview, which traditional email proofing can not offer. This gives great assurance throughout the production process. The economy of running WebProof must be good, otherwise 40,000 users worldwide, who approve more than 4 million. pages a year, would not use WebProof.