Google Ads
intermediate
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How to Optimise Google Ads and Lower Your CPC

Lowering your CPC while maintaining or improving conversion volume comes down to improving Quality Score, refining keyword targeting, tightening ad relevance, optimising landing pages, and using smart bidding effectively. Focus on relevance at every level — the more aligned your keywords, ads, and l

Optimisation & Reportingoptimise google ads lower cpc

Quick Summary

Lowering your CPC while maintaining or improving conversion volume comes down to improving Quality Score, refining keyword targeting, tightening ad relevance, optimising landing pages, and using smart bidding effectively. Focus on relevance at every level — the more aligned your keywords, ads, and landing pages are, the less Google charges you per click.

Process Flow

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Step-by-Step Guide

Follow these 10 steps to complete this guide

1

Why CPC Matters

Cost per click directly determines how far your budget goes. A 20% reduction in CPC means 20% more clicks for the same spend — or the same clicks at lower cost. Google rewards relevance with lower CPCs through the Quality Score system, meaning well-optimised accounts naturally pay less than poorly managed ones.
2

Improve Your Quality Score

Quality Score is Google's 1-10 rating of your keyword relevance. It is based on three components: expected click-through rate, ad relevance, and landing page experience. A higher Quality Score directly lowers your CPC because Google uses it in the ad auction formula alongside your bid.

To improve Quality Score, ensure your ad copy includes the keywords in each ad group, that your landing page content matches the search intent behind your keywords, and that your historical CTR is strong. Move low-QS keywords to their own ad groups with tailored ads.

3

Refine Your Keyword Strategy

Remove underperforming keywords that spend but do not convert. Review the Search Terms Report weekly and add negative keywords for irrelevant queries. Shift budget toward exact match and phrase match keywords that drive conversions at a lower CPA. Pause broad match keywords that are not performing with smart bidding.
4

Tighten Ad Group Themes

If an ad group has keywords with different intents, split them into separate ad groups. The tighter your ad group theme, the more relevant your ads, the higher your CTR, and the lower your CPC.
5

Write Better Ads

Test multiple RSA variations. Include your primary keyword in at least 3 headlines. Use specific numbers and offers. Include a clear call to action. Ads with higher CTRs earn better Quality Scores and lower CPCs over time.
6

Optimise Landing Pages

Your landing page must match the search intent and ad promise. Ensure fast load times (under 3 seconds), mobile responsiveness, clear headline matching the ad, prominent call to action, and relevant content. Google measures landing page experience as part of Quality Score.
7

Use Smart Bidding Effectively

If using Target CPA or Target ROAS, ensure you have enough conversion data (at least 30-50 conversions in 30 days). Set realistic targets — overly aggressive targets cause Google to reduce delivery. Gradually decrease targets as you accumulate data rather than setting ambitious targets from day one.
8

Leverage Ad Scheduling

Review performance by time of day and day of week. Reduce bids or pause ads during hours with high CPC but low conversion rates. Increase bids during high-converting periods.
9

Adjust Location Bids

Use location bid adjustments to increase bids in high-performing areas and decrease in low-performing ones. If certain cities or regions consistently deliver higher CPA, consider excluding them or reducing bids significantly.
10

Use Negative Keywords Aggressively

The Search Terms Report is your best friend for CPC optimisation. Check it at least weekly. Every irrelevant search term that triggers your ad wastes budget and lowers CTR, which increases your CPC over time.

Frequently Asked Questions

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