Your Google Ads cost per click is high because the auction expects that traffic to be valuable, your targeting is entering expensive auctions, or your ads and landing page are not competitive enough for the position you want. A high CPC campaign is not automatically bad; the real question is whether each click produces enough qualified business to justify its cost.
Start with the auction, not the average
Google does not publish one fixed price for a keyword. Each search creates an auction shaped by your bid, ad and landing-page quality, competition, context and the expected effect of assets. Google's Ad Rank guidance explains why a relevant ad can sometimes achieve a stronger position at a lower price than a less relevant competitor.
Commercial searches often cost more because several advertisers can earn meaningful revenue from one customer. A higher CPC may therefore reflect stronger intent, not waste.
Find where the expensive clicks come from
Segment cost, clicks, conversions and conversion value by search term, keyword, location, device, time and network. Do not rely only on campaign averages. You may find that a broad match is paying for research queries, a single location faces unusual competition or mobile traffic converts poorly because the form is difficult.
Review actual search terms before changing bids. Add genuinely irrelevant terms as negatives, tighten themes and make sure the ad answers the searcher's need. Do not block useful variations simply because they have not converted in a tiny sample.
Improve relevance across the whole path
The keyword, ad and landing page should make one consistent promise. Send specific searches to the most relevant page, keep the offer visible and remove unnecessary steps. Google's current Quality Score guidance treats the score as a diagnostic tool, not a target to optimise in isolation.
Judge CPC against customer economics
Calculate cost per qualified lead, cost per customer and contribution after advertising. A £6 click that produces profitable customers can be better than a £1 click that never converts. Feed meaningful conversion data back to the platform and compare segments on business outcomes.
If costs have risen, check whether conversion rate or customer value changed at the same time. Cutting bids without that context can remove your best traffic.
The practical response
Fix measurement first, remove clearly irrelevant traffic, strengthen message match and then adjust bids or strategy. Our guide to lead quality over click volume shows why cheap traffic can be an expensive distraction. To learn campaign planning and optimisation through practical work, explore Digital Marketing in Practice.