One Targeting Change Cut Wasted Clicks in Half. Stop Paying for Traffic That Never Buys.

Here is a Google Ads problem hiding in plain sight. You are paying for clicks that were never going to buy, and Google's own filtering does not catch all of them. A Search Engine Land case study shows one advertiser cut invalid clicks by roughly half with a targeting change, restoring campaign profitability that Google had said was already clean.

The context is worth knowing. Invalid click rates have climbed from around 5.9% in 2010 to over 12% in recent years, driven by more sophisticated bots and click fraud. Google filters some of it automatically and credits you for what it catches. The catch is that it does not catch everything, and the clicks that slip through still drain your budget and pollute your data.

The fix in the case study was not exotic. It was tighter targeting. Narrowing to the geographies and placements where real engagement lived, and excluding the high risk areas where invalid traffic clustered, restored profitability. The lesson is that broad targeting is not just inefficient, it is an open door for the traffic you least want to pay for.

For any Australian business running paid search on a tight budget, wasted clicks are not a rounding error. They are margin. If a meaningful slice of your spend is going to traffic that will never convert, your cost per acquisition is inflated, your reported performance is misleading and you are making budget decisions on dirty data. The bots do not care about your quarterly target.

Cleaner traffic does not just save money. It sharpens every decision you make downstream, because you are optimising against real behaviour, not noise.

You cannot stop every bot, but you can stop paying full price to feed them. Tighten the targeting and take your margin back.