Stop VPN and proxy abuse on Google Ads
Fraudsters route clicks through VPN services, Tor exit nodes, and anonymous proxies to disguise their location and evade IP-based exclusions on Google Ads.
Trusted by leading brands worldwide
Anonymised traffic is exploiting Google Ads geo-targeting gaps
Geographic targeting is one of Google Ads' most powerful controls, but it depends on accurate location data. When fraudsters route clicks through commercial VPN services or residential proxy networks, they can appear to originate from any city or country in the world. An advertiser targeting London professionals may unknowingly be serving clicks to a fraud operation in a completely different region, with the click costs debited as if the traffic were exactly the audience being purchased.
VPN and proxy abuse also undermines frequency capping and audience exclusions. A fraudster who has been excluded from your remarketing list can simply reconnect through a different proxy exit node and appear as a brand-new visitor. Tapper identifies anonymising infrastructure at the network layer, flagging VPN, Tor, and data-centre proxy endpoints regardless of the apparent geographic origin they present to Google.
How Tapper stops vpn and proxy abuse on Google
Three steps from connection to clean data, no engineering required.
01
Identify VPN and proxy exit nodes
Tapper cross-references every click's originating IP against a continuously updated database of commercial VPN providers, residential proxy pools, Tor exit relays, and anonymising infrastructure.
02
Detect location spoofing via browser signals
Timezone, system locale, GPS permissions, and WebRTC leaks are compared against the declared IP location to identify sessions where the user is masking their real geographic position.
03
Enforce geo-targeting integrity across campaigns
Clicks identified as anonymised are excluded from campaign reporting and conversion tracking, so your geo-performance data reflects real audiences in the regions you are paying to reach.
VPN and proxy abuse by the numbers
Data from Tapper's platform analysis and published industry research.
34%
Of invalid clicks on geo-targeted campaigns use anonymising services
6,000+
VPN and proxy exit ranges updated in Tapper's database daily
19%
Of Google Ads budget wasted on mis-attributed geographic traffic
3.2x
Higher fraud rate on campaigns with tight geo-targeting enabled
Tapper vs Google's Built-in Detection
See exactly where the gaps are, and why they matter to your bottom line.
VPN and proxy detection
Checks against 40M+ known anonymising IPs including residential proxy pools
Basic data-centre IP filtering only; residential proxies and VPNs largely undetected
Tor exit node blocking
Full Tor exit relay list updated every 30 minutes from authoritative sources
No dedicated Tor detection; exit nodes treated as regular traffic
Location spoofing detection
Cross-references IP geolocation against browser timezone, locale, and WebRTC leaks
Relies solely on IP geolocation with no browser-level location verification
Geo-targeting audit reporting
Shows exactly which regions your budget actually reached after anonymised traffic removed
Geographic reports include anonymised clicks, inflating apparent reach in target regions
Trusted by industry leaders
See how companies are protecting their ad budgets and improving ROI with Tapper.
“Tapper played a key role in improving the efficiency of Du's performance marketing activity by addressing traffic quality issues within campaigns. Following implementation, Du achieved a 13% reduction in CPA and an 8.6% increase in order rate, demonstrating a clear improvement in conversion quality and overall campaign effectiveness.”
Joseph Elbcherrawy
Client Leadership Director, Mindshare, a WPP Media Brand
“During our Tapper trial for INFINITI, we uncovered low-quality traffic that wasn't visible inside the platforms. Removing it delivered a 14% uplift in conversions and an 11.4% reduction in CPA - a meaningful efficiency gain for INFINITI's 2026 growth plans.”
David Barnes
Data & Technology Lead, Omnicom Group
“With Tapper's protection we were able to identify and block invalid clicks in real time. The impact was immediate as our cost per acquisition dropped by 30% and ROAS improved significantly. More importantly, Tapper gives us the confidence that our campaigns are reaching genuine customers, which makes it truly invaluable.”
Dimitris Bakas
Senior Performance Marketing, Public Group
“We started using Tapper to get better visibility on where our clicks were coming from, and ended up cutting wasted spend by over 12%. The performance uplift was clear, and for the first time, we could trust the numbers we were seeing. It's a total game-changer for campaign integrity.”
Stuart Parkin
Director of Operations, Regit
“Tapper's blocking technology purifies our paid media traffic which roughly equates to a 36x return against its subscription costs. It's certainly one of the easiest-to-implement tools in our entire marketing stack.”
Reno Mindemann
Head of Growth, Kama Capital
“We've been using Tapper for over a year now, and it has become a core part of how we run paid media. Invalid traffic was always something we knew existed but couldn't really act on. Tapper changed that. We're now saving up to $50K per year, and on PureSquare specifically, we saw around a 20% decrease in CPA. Based on these results, we decided to roll it out across other ventures under Disrupt as well.”
Nurkan Kirkan
GTM Consultant / Paid Growth, Disrupt.com
Trusted by leading brands worldwide
Frequently asked questions
Everything you need to know about stopping vpn and proxy abuse on Google Ads.
Tapper applies a risk-tiered approach. Commercial VPN services and Tor exits are blocked at high confidence. Residential proxies are scored with additional behavioral signals before a decision is made. If your audience legitimately includes privacy-focused users, thresholds can be adjusted per campaign so you're not excluding genuine privacy-tool users alongside fraudsters.
VPN server switching changes the exit IP but does not change the browser fingerprint, system locale, timezone, or WebRTC leak pattern. Tapper uses these secondary signals to maintain detection even when a fraudster rotates through multiple VPN endpoints. A new exit IP alone is not sufficient to evade the full set of checks Tapper applies.
Google bills clicks based on the IP location it observes, which a VPN can manipulate. If a fraudster uses a UK VPN exit to click your UK-targeted campaign, Google charges UK CPC rates for traffic that never originated in your target market. Tapper's detection prevents these mis-attributed clicks from depleting your geo-specific budget.
Other fraud types affecting Google Ads
Google campaigns face multiple fraud vectors. Tapper covers them all.
Stop vpn and proxy abuse on Google today
Join advertisers who stopped paying for traffic that was never real. Book a demo and we will show you exactly what Tapper blocks on your account.