Ad verification proxies

Ad fraud costs the industry billions every year. Ads served to bots, displayed in wrong locations, hidden behind low-quality placements, or never shown at all — and your dashboards say everything looks fine.

Verifying from your own IP or from datacenter proxies alerts fraudsters to change behavior. Sophisticated publishers detect datacenter traffic and serve clean, compliant ads to your verification tool while continuing to serve low-quality or fraudulent placements to real users. This is called cloaking, and it’s one of the most common forms of ad fraud.

You need to check placements the way a real user would: from a real residential IP, in the real target location. Residential proxies route your checking requests through genuine ISP-assigned addresses so publishers have no way to distinguish your verification request from a real visitor.

Common fraud types that residential proxy verification helps detect include impression fraud (bots inflating metrics to drain your budget), geo-mismatching (ads appearing in wrong regions), creative swaps (approved creatives replaced after initial checks), ad stacking and pixel stuffing (invisible placements), and domain spoofing (low-quality sites pretending to be premium publishers).

Datacenter proxies are faster and cheaper, but ad networks maintain lists of known datacenter IP ranges and serve different content to those addresses. This creates a verification blind spot: your tool reports clean placements because the publisher detected the datacenter IP and cloaked. Meanwhile, real users on residential IPs see the actual fraudulent ads. Residential proxies from TrueProxies don’t appear on datacenter blocklists, so publishers have no signal to trigger cloaking behavior.

If you're comparing workflows before you commit, explore all proxy use cases to see which setup fits best.