Google Ads Keyword Research: Complete Guide
Start with seed keywords from your products or services, expand using Google Keyword Planner (for volume and CPC estimates), mine Google Search Console for terms you already rank for organically, analyse competitor ads using Auction Insights and third-party tools, check Google autocomplete and Peopl
Quick Summary
Start with seed keywords from your products or services, expand using Google Keyword Planner (for volume and CPC estimates), mine Google Search Console for terms you already rank for organically, analyse competitor ads using Auction Insights and third-party tools, check Google autocomplete and People Also Ask for long-tail ideas, group keywords by intent and theme into ad groups, and estimate required budget based on CPCs and target volume. Focus on commercial and transactional intent keywords over informational ones for paid campaigns.
Why Keyword Research Matters for Google Ads
Unlike SEO where ranking for a keyword is free, every click in Google Ads costs money. Poor keyword research means paying for clicks that never convert. Good keyword research means your budget goes toward searches from people actively looking to buy, enquire, or take action.
The goal is to find keywords that have sufficient search volume (enough people searching to generate meaningful traffic), commercial or transactional intent (the searcher wants to buy or enquire, not just learn), manageable competition (CPCs are within your budget), and relevance to your product or service (you can deliver on what the searcher wants).
Long-Tail Keywords
Long-tail keywords are longer, more specific phrases with lower volume but often higher conversion rates and lower CPCs. For example, "running shoes" is a head term with high volume and competition, while "best cushioned running shoes for flat feet" is long-tail with lower volume but very specific intent.
Include long-tail keywords in your strategy — they often deliver the best ROI because competition is lower and intent is clearer.
Negative Keyword Research
As part of your keyword research, proactively identify terms you do not want to trigger your ads. Common negative categories include job-related searches (careers, salary, hiring), free or DIY searches (free, how to, tutorial), unrelated products or services, competitor names (if you choose not to bid on them), and locations you do not serve.
Create a master negative keyword list before launching campaigns and continuously refine it using the Search Terms Report.
Process Flow
Interactive diagram — drag to pan, scroll to zoom
Step-by-Step Guide
Follow these 7 steps to complete this guide
Start with Seed Keywords
For a plumbing company in Dubai, seed keywords might include plumber dubai, emergency plumber, plumbing services, drain cleaning, pipe repair, and water heater installation.
For an e-commerce store selling running shoes, seed keywords might include running shoes, mens running shoes, trail running shoes, nike running shoes, and best running shoes.
Write down 10-20 seed keywords. Do not worry about volume or competition yet — you will refine in the next steps.
Expand with Google Keyword Planner
Discover new keywords: Enter your seed keywords and Keyword Planner returns related keyword ideas with monthly search volume ranges, competition levels (Low, Medium, High), and estimated top-of-page bids (low range and high range).
Get search volume and forecasts: Enter a list of keywords to see estimated clicks, impressions, cost, and conversions based on your budget and bidding.
When using Keyword Planner, set your targeting to match your campaign (location, language). Filter results by relevance and volume. Sort by "Avg. monthly searches" to find high-volume opportunities, or by "Top of page bid (high range)" to understand cost.
Important: Keyword Planner shows volume ranges (e.g., 1K-10K), not exact numbers, unless you are running active campaigns with meaningful spend. The data is directional, not precise.
Mine Your Existing Data
If your website has organic traffic, Search Console shows which queries bring people to your site. Go to Performance > Search results and look at queries with high impressions but low clicks — these are terms where people search but your organic listing does not capture the click. They may be excellent Google Ads opportunities.
Existing Google Ads Data
If you already have campaigns running, the Search Terms Report is a goldmine. It shows the actual queries triggering your ads. Look for high-converting search terms that you have not added as keywords, and terms with high impressions but low CTR that need better ad copy or should be added as negatives.
Website Analytics
GA4 site search reports show what visitors search for on your site. These terms represent high-intent users actively looking for specific products or services.
Analyse Competitor Keywords
Manual search: Search for your target keywords on Google and note which competitors appear in ads. Read their ad copy for keyword and messaging ideas.
Third-party tools: Tools like SEMrush, Ahrefs, and SpyFu can show you which keywords your competitors bid on, their estimated ad spend, and their ad copy. These require paid subscriptions but provide deep competitive intelligence.
Check Intent and Qualify Keywords
Transactional intent (highest value): The searcher wants to buy or take action now. Examples include buy running shoes online, emergency plumber near me, hire marketing agency dubai. These convert at the highest rate.
Commercial investigation (high value): The searcher is comparing options before making a decision. Examples include best running shoes 2026, plumber reviews dubai, marketing agency pricing. These users are close to converting.
Informational intent (lower value for ads): The searcher wants to learn something. Examples include how to fix a leaky pipe, what are running shoes made of, what does a marketing agency do. These rarely convert directly and are usually better served by SEO content.
Navigational intent (variable value): The searcher is looking for a specific brand or website. Examples include nike running shoes, google ads login. Bidding on your own brand terms is usually cheap and protective; bidding on competitor brands is strategic but often has lower conversion rates.
For paid campaigns, focus budget on transactional and commercial investigation keywords.
Group Keywords by Theme
Example grouping for a plumber:
Group 1 — Emergency: emergency plumber, 24 hour plumber, urgent plumbing service
Group 2 — Drain cleaning: drain cleaning, blocked drain, clogged drain service
Group 3 — Water heater: water heater repair, hot water system installation, geyser repair
Group 4 — Brand: [your company name], [your company name] plumber
Estimate Budget Requirements
Example calculation: If "emergency plumber dubai" has an estimated CPC of AED 15 and you expect 200 clicks/month, that is AED 3,000/month. With a 5% conversion rate, you get 10 leads at AED 300 per lead.
If the estimated budget exceeds what you can afford, prioritise keywords by conversion potential and focus on the highest-intent terms first.
Frequently Asked Questions
Common questions about this topic
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