When we audit a Google Ads account for the first time, we almost always find the same patterns. Here are the five most expensive — with a self-test for each.
1. No (or incorrect) conversion tracking
The classic: campaigns have been running for months, but only “clicks” are measured, or nothing at all. Without conversion data Google optimizes for traffic instead of enquiries — and you pay for visitors who never become customers.
Self-test: Open your account and check under Goals → Conversions whether real actions (a call, a form, a purchase) are being recorded — and whether the numbers look plausible.
2. Search terms without oversight
Broad keywords without maintaining the search terms list mean your ad appears for completely unrelated searches. The tradesperson pays for “electrician training”, the store for “free” and “second-hand”.
Self-test: Look at the Search terms report. How many of the last 50 terms would you take seriously as a customer?
3. Every click goes to the homepage
Someone searching for a specific service wants the matching page — not your homepage covering seven topics. Every extra click costs conversions.
Self-test: Click through your own ad (with the preview tool, not live!). Does the landing page answer the search exactly?
4. Smart campaigns on autopilot
The automated formats Google promotes are convenient — but without a clean data foundation and oversight they happily optimize towards cheap, worthless interactions.
Self-test: Do you know which networks your ads run on and how much budget flows into the Display network? If not: go and look.
5. Not excluding existing customers and job seekers
Brand searches from existing customers and traffic from applicants dilute your statistics and cost money without bringing new business.
Self-test: Check whether there are audience exclusion lists and negative keywords such as “jobs” or “careers”.
In summary
None of these mistakes is exotic — together they often cost 30 to 50 percent of the budget. If you were unsure on two or more points, our free analysis uncovers exactly that.
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