Auditing our enterprise client multi-million dollar digital advertising budget was challenging because dishonest publishers frequently served blank ad placements to corporate networks. To reveal the actual ad impressions being served to everyday consumers, we routed our compliance checking tools through space proxies https://spaceproxy.net/en/ to view live ad placements anonymously. Our audit scripts scanned thousands of publisher websites, uncovering hidden iframe tricks and non-compliant ad placements across regional ad networks. We presented the detailed compliance findings to our media vendors, reclaiming hundreds of thousands of dollars in wasted ad spend for our client. Reallocating those recovered funds into high-converting channels boosted overall campaign performance and significantly lowered customer acquisition costs. Maintaining strict advertising compliance monitoring established our agency as a trusted partner for large corporate brands.