VPN & Proxy Clicks: Why They Hurt Google Ads Campaigns

· 6 min read · Updated: August 14, 2026

VPNs and proxies bypass geo targeting and IP bans. Their role in invalid traffic and how to protect spend.

Why attackers use VPN/proxy

Attackers and low-quality traffic networks hide real locations, bypass blocked IPs or fake a target country. You target a city; the click may come from a datacenter.

Datacenter IP signal

Most commercial VPNs and open proxies exit via datacenter ASNs. Separating residential from datacenter traffic is a core click-fraud scoring signal. TOK Shield adds it to the risk score.

When to block

Not every VPN user is malicious. Score VPN together with behavior (session, device, repeats). High-risk combinations go to the exclusion list.

TOK Shield approach

Bot, VPN/proxy and invalid-traffic signals are combined; over-threshold IPs are written to Google Ads exclusions — protecting budget while controlling false positives.

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