Google Ads

Shopping campaigns

VPN and proxy abuse

Stop VPN and proxy fraud on Google Shopping campaigns

Fraudsters using VPNs and residential proxies to mask their identity are clicking your Shopping listings with impunity, knowing that Google's IP-level detection cannot see through the anonymisation layer. Tapper identifies proxy and VPN traffic through device fingerprinting and behavioural signals, not just IP reputation, stopping masked fraudulent clicks before they drain your budget.

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VPN and proxy masking makes Shopping fraud nearly invisible to standard detection

Fraudsters targeting Google Shopping campaigns have increasingly adopted residential proxy networks as their primary evasion tool. Unlike datacenter VPNs, which are easily identified by their IP ranges, residential proxies route traffic through real consumer ISP addresses, making each fraudulent click appear to originate from a genuine household. This defeats the IP-reputation-based detection that Google and most ad fraud tools rely on. For Shopping campaigns, where the click intent is product purchase, even a small volume of proxy-masked fraudulent clicks can significantly distort conversion rate data at the product level.

Geographic targeting is an additional vector for proxy abuse on Shopping campaigns. Fraudsters use proxies to appear as if they are clicking from within your target regions, bypassing any geographic exclusions you have applied. This is particularly damaging for retailers who use geographic performance data to make budget allocation decisions, as fraudulent clicks from proxied locations inflate apparent demand from regions where real performance is weaker. Tapper combines IP classification with device-level signals to identify proxy use regardless of the apparent source location.

How Tapper stops vpn and proxy abuse on Google shopping campaigns

Three steps from connection to clean campaign data, no engineering required.

Identify VPN and proxy use beyond IP lookup

Tapper analyses over 120 signals including browser WebRTC leaks, timezone mismatches, language inconsistencies, and device attribute conflicts that reveal proxy use even when the IP address itself appears clean. Residential proxy networks are identified through behavioural clustering rather than static IP lists alone.

Cross-reference against live proxy infrastructure databases

Tapper maintains a continuously updated database of known VPN exit nodes, proxy service IP ranges, and datacenter subnets. Every Shopping click is cross-referenced against this database in real time, flagging known anonymisation infrastructure within milliseconds of the click occurring.

Apply granular proxy exclusions without blocking legitimate traffic

Confirmed proxy and VPN traffic is excluded from your campaigns via Google Ads IP exclusion lists. Tapper's false positive rate is below 0.1%, meaning legitimate shoppers who happen to use a VPN for privacy reasons are assessed individually against behavioural signals before any exclusion is applied.

VPN and proxy abuse on Google shopping campaigns by the numbers

Data from Tapper's platform analysis and published industry research.

19%

Of Shopping clicks estimated as fraudulent or invalid

$18B

Lost to Google network ad fraud annually

43%

Of Shopping advertisers have no fraud monitoring

3.1x

ROAS lift after fraudulent traffic is removed

Tapper vs Google's Built-in Detection

See exactly where the gaps are, and why they matter to your shopping campaigns performance.

Capability

Tapper

Google's Built-in Detection

Residential proxy detection beyond IP reputation

Yes, device signals and behavioural analysis identify proxy use

No, residential proxies bypass Google IP-level detection

VPN exit node database cross-referencing

Yes, continuously updated live database checked on every click

No, only basic datacenter IP range filtering

Geographic fraud detection for proxy-masked clicks

Yes, timezone and locale conflicts surface location masking

No, geo-targeted exclusions cannot detect proxy use

False positive protection for legitimate VPN users

Yes, behavioural scoring applied before any exclusion is triggered

No blanket VPN exclusion available in Google Ads

Success stories

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 about vpn and proxy abuse on Google Ads shopping campaigns.

Generally no. Residential proxy IP addresses belong to real consumer ISPs and pass most IP-reputation checks. Google's invalid click detection is primarily designed to identify datacenter-origin bots and high-velocity automated traffic. Low-volume human-operated fraud through residential proxies falls below the detection threshold. Tapper closes this gap by looking at device-level and behavioural signals that reveal proxy use independently of the source IP.

Tapper does not automatically block all VPN or proxy users. Each click is assessed against the full set of fraud signals before any action is taken. A customer browsing your Shopping listings through a commercial VPN for privacy reasons will typically pass Tapper's behavioural checks and not be excluded. The exclusions that Tapper applies target confirmed fraudulent proxy infrastructure and patterns consistent with organised abuse.

When fraudsters use proxies to appear as if they are clicking from within your target regions, your geographic performance reports show inflated click volumes from those locations without corresponding conversion uplift. This can cause you to over-invest budget in regions where real demand is lower, and under-invest in regions where legitimate customers are underserved. Tapper removes proxy-masked clicks from your geographic data, restoring an accurate picture of where real shopping intent exists.