Google showed your ads to the wrong people today.

Published April 2021. Last updated July 2026.

Google showed your some of your adverts to the wrong people today. You (or someone you hire) must deal with this or your ads are going to start costing more and generating fewer leads.

The wrong people seeing your ad is a problem whether they click your ad or not:

  • If they click the ad you've wasted money. On a tight budget that could mean missing out on a future customer.
  • If they don't click on your ad it's still a problem. Google uses the click through rate (how often your ads are clicked) as part of their formula for working out how good your ads are. Good ads get shown more and charged less per click. It's a virtuous circle. Ads that don't get clicked as often start start circling the drain.

Google isn't being malicious when they show your ads to the wrong people.

It happens because people don't always use the same words to search for what you sell. 15% of the trillion search phrases that people type into Google every year have never been seen before.

Put another way, 1 in 7 searches typed into Google has never been typed in before.

Google shows your ads for some of those new searches. Most of the time they get it right. Sometimes they don't so they provide a way for you to stop your ads showing in response to some searches.

I've written about this before but I still see this problem in almost every AdWords account I consult on. I got this from a South African client last time I wrote about this.

"We paid Google a fortune for rubbish clicks … people wanting gate opening times, camping and all sorts of nonsense costing us R12 or so per click. It looks like we have wasted R200k!"

It's a silent creeping problem. It took him about a year to waste that money.

Your AdWords campaign doesn't stop dead and it doesn't blow the budget right away. It's a bit like the rust under the carpet of my first car. I didn't even know it was there till my girlfriend put her foot through the floor like Mrs Flintstone.

Dealing with this once a month is right for the kinds of campaigns I manage. You might need to do it more often or get away with doing it less frequently.

I find Google's interface is uncomfortable for this workflow so I built a tool to streamline the work. It doesn't demand a PhD in AdWords and takes only a few minutes per campaign if done regularly.

You're welcome to use the tool for your campaigns.

Most Google Ads Problems Aren't Google Ads Problems
Pete holding his book
If my writing resonates with you, I'd like to give you a copy of my book, Profitable Google Ads. The book was written for business owners, but many PPC professionals have found it valuable too.
Before you download it, what describes you best?

Related articles

Map every route a Google Ads lead can take into your business

I trace every route from the ad to the CRM to find leads and tracking data that go missing.

What happens after a Google Ads lead arrives?

A neat sales funnel can hide where leads go missing, follow-up breaks down and the evidence needed to improve your ads gets lost.

Is your conversion tracking teaching Google the right lessons?

If every enquiry looks equally valuable, Google will chase quantity. Does it ever learn which leads actually become customers?

Are you making Google Ads decisions with the right evidence?

The ad account says the leads are good. The sales team says they aren’t. Who has the evidence needed to decide?

How I decide which Google Ads evidence gaps matter most

Finding problems is easy. The difficult part is identifying the few evidence gaps that could materially affect leads, decisions and profitability.

How I find high-leverage opportunities to make Google Ads more profitable

The highest-leverage opportunities aren't always in the ad account.

Topics you'll find on this site

Agency insights

Thoughts and lessons on client selection, burnout, pricing, and modernising legacy accounts, from someone who's run a Google Ads for years.

Conversion tracking

Understand what happens after someone clicks your advert. Subjects include offline conversions, CRM integration, attribution, auditability and marketing instrumentation.

Essays and thinking

Articles about marketing, engineering, AI and problem solving that don't fit neatly into the other topics. These are some of the ideas and experiences that have shaped how I think.

Google Ads for lead generation

Learn how to use Google Ads to generate profitable leads. Subjects include campaign strategy, bidding, targeting, optimisation and the challenges of running lead generation campaigns.

Landing pages

Things I've learned about high-converting landing pages. Subjects include copywriting, page structure, forms, trust, conversion rate optimisation and user experience.

Sales Process

What happens after a lead has been generated determines if Google Ads is profitable. Subjects include first contact, follow-up, quoting, lead nurturing and turning more enquiries into customers.

© 2026 Pete Bowen