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Cost Per Click (CPC)

Définition

Cost Per Click (CPC) is the amount you pay each time someone clicks on your ad. In Google Ads, actual CPC is determined by an auction where your bid, Quality Score, and Ad Rank interact. Lowering CPC while maintaining traffic volume is a key goal of paid search optimization.

How CPC Works in Google Ads

Google Ads uses a second-price auction model. You set a maximum CPC bid, but you often pay less than your max. Your actual CPC is calculated as: (Ad Rank of the advertiser below you / your Quality Score) + $0.01. This means improving your Quality Score directly lowers what you pay per click. Manual CPC gives you full control over bids, while automated strategies like Maximize Clicks or Target CPA adjust bids dynamically based on auction signals.

Average CPC by Industry

Average CPC varies dramatically by industry and keyword competitiveness. Legal and insurance keywords can cost $50+ per click, while e-commerce and retail keywords average $1-2. B2B SaaS keywords typically range from $3-8. Google Shopping ads tend to have lower CPCs ($0.50-1.50) than Search. Understanding your industry benchmarks helps you set realistic budgets and identify whether your CPCs are competitive or inflated due to poor Quality Scores.

Strategies to Lower CPC

The most effective way to reduce CPC is improving Quality Score through better ad relevance and landing page experience. Use long-tail keywords with lower competition. Add negative keywords to prevent wasted spend on irrelevant clicks. Structure campaigns with tight ad group themes so ads closely match search intent. Schedule ads during high-converting hours to maximize value per click. Test different match types and bid strategies to find the most cost-efficient combination for your goals.

CPC vs CPM: When to Use Each

CPC billing charges you only when someone clicks, making it ideal for direct-response campaigns where you want measurable actions. CPM (cost per thousand impressions) charges per view and works better for brand awareness campaigns. In Google Ads, Search campaigns use CPC while Display campaigns can use either. Meta Ads default to CPM-based bidding but optimize toward your chosen objective. Choose CPC when you need leads or sales; choose CPM when reach and visibility are the priority.

Tracking CPC with AdWhiz

AdWhiz analyzes your CPC across every campaign and keyword, flagging overpaying patterns and bid inefficiencies. The audit identifies keywords where your CPC is higher than industry benchmarks and recommends specific actions like Quality Score improvements or bid adjustments. The dashboard shows CPC trends alongside conversion data, so you can see whether lower costs translate to better ROI or just cheaper, less qualified traffic.

Foire aux questions

A good CPC depends on your industry and profit margins. E-commerce averages $1-2, B2B SaaS $3-8, and legal/insurance can exceed $50. The key metric is whether your CPC allows a profitable cost per acquisition, not just the absolute number.

Quality Score directly impacts your actual CPC. A Quality Score of 10 can reduce your CPC by up to 50% compared to the average, while a score of 1 can double it. Improving ad relevance, expected CTR, and landing page experience are the three levers.

Start with manual CPC when you have limited conversion data (under 30 conversions per month). Once you have enough data, switch to automated strategies like Maximize Conversions or Target CPA, which use machine learning to adjust bids in real time across hundreds of signals.

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