What Is Keyword Research and Why Does It Matter?
Keyword research is the process of identifying the specific words and phrases your potential customers type into search engines when looking for products, services, or information related to your business. It is the foundation of every effective SEO campaign - without it, you are guessing what to optimise for rather than building strategy around verified demand.
The purpose of keyword research goes beyond simply finding popular search terms. Done properly, it reveals what your audience actually cares about, how they describe their problems, what stage of the buying journey they are in, and where competitors are capturing traffic that should be going to your website.
In Australia specifically, keyword research carries additional complexity. Search volumes are smaller than in the US or UK markets, spelling conventions differ, and regional variations in how Australians search for services can make or break a campaign. A keyword strategy built on American data will consistently underperform in the Australian market.
Across 250-plus projects in Australia and New Zealand, I have found that keyword research is the single most common area where businesses either skip entirely or execute poorly. The result is predictable: content that nobody searches for, pages optimised for the wrong intent, and marketing budgets spent on terms that will never convert. Getting keyword research right is not glamorous work, but it is the difference between SEO that generates revenue and SEO that generates reports.
Step-by-Step Keyword Research Process
Here is the process I follow for every Australian client engagement. It has been refined across hundreds of projects and accounts for the specific challenges of the Australian search market.
Step 1: Define Your Seed Keywords
Every keyword research project starts with seed keywords - the broad, foundational terms that describe your core products, services, or topics. These are not the keywords you will target directly. They are starting points that your research will expand from.
For an Australian accounting firm, seed keywords might be: accountant, tax return, bookkeeping, BAS, financial planning. For a Gold Coast plumber: plumber, blocked drain, hot water system, emergency plumbing.
To identify your seeds:
- List every product and service you offer
- Note the language your customers use when they contact you (not industry jargon - actual customer language)
- Review your Google Search Console data for queries already driving impressions
- Check your Google Business Profile insights for search terms triggering your listing
- Ask your sales team what questions prospects ask most frequently
I typically start with 15 to 30 seed keywords, then expand each one into hundreds of actionable targets through the steps that follow.
Step 2: Expand Your Keyword List
Using your seeds, generate a comprehensive list of related keywords. The goal here is volume - you will filter and prioritise later.
Use keyword research tools. I rely on Ahrefs and SEMrush as primary tools, supplemented by Google Keyword Planner for search volume validation. Enter each seed keyword and export the "Matching terms," "Related terms," and "Questions" reports. For a single seed keyword, these tools can return thousands of related terms with search volume, difficulty scores, and click data.
Mine Google's own suggestions. Google Autocomplete (the suggestions that appear as you type) and "People also ask" boxes reveal how real users phrase their queries. These suggestions are based on actual search behaviour and are invaluable for discovering long-tail variations you would never think of yourself.
Analyse competitor keywords. Enter your competitors' domains into Ahrefs or SEMrush to see exactly which keywords they rank for. This is often the fastest way to identify opportunities - particularly terms where competitors rank on page two or three, suggesting the topic has demand but existing content is not fully satisfying it.
Review forums and community sites. Reddit, Quora, Whirlpool (for the Australian market specifically), and industry forums reveal the actual language people use when discussing problems your business solves. These are goldmines for long-tail keywords and content ideas that tools miss.
At this stage, a typical project generates 500 to 2,000 raw keyword candidates. Do not worry about quality yet - that comes in the prioritisation step.
Step 3: Analyse Search Intent
This is where most keyword research fails. Identifying a keyword with decent search volume means nothing if you do not understand the search intent behind it - what the searcher actually wants when they type that query.
Google categorises search intent into four primary types:
Informational intent. The searcher wants to learn something. Queries often start with "what is," "how to," "why does," or are phrased as questions. Example: "what is capital gains tax in Australia." These users are researching, not buying. Content that ranks for informational queries needs to educate comprehensively.
Navigational intent. The searcher wants to find a specific website or page. Example: "ATO myGov login" or "Xero pricing page." These queries have limited SEO value for most businesses because the user already knows where they want to go.
Commercial investigation intent. The searcher is evaluating options before making a decision. Queries include comparisons ("Xero vs MYOB"), reviews ("best accounting software Australia"), and feature-focused searches ("cloud accounting software with payroll"). This is high-value intent - these users are close to a buying decision and evaluable content ranks well.
Transactional intent. The searcher is ready to take action - buy, sign up, book, or download. Queries include "hire accountant Sydney," "buy QuickBooks Australia," or "book tax consultation." These are the highest-value keywords but also typically the most competitive.
The critical mistake I see repeatedly: Australian businesses creating blog posts targeting transactional keywords (where Google wants to show service pages) or building service pages targeting informational keywords (where Google wants to show guides). Intent mismatch is the number one reason good content does not rank.
To verify intent, search the keyword on Google.com.au and examine the first page results. If Google shows blog posts and guides, the intent is informational. If it shows product pages and service listings, the intent is commercial or transactional. The search results page is Google telling you exactly what content format it wants - listen to it.
Step 4: Competitor Gap Analysis
Competitor gap analysis identifies keywords that your competitors rank for but you do not. This is one of the highest-value exercises in keyword research because it reveals proven demand - if a competitor ranks for a term, it has traffic and likely commercial value.
Here is how I run it:
- Identify your top 5 organic competitors (use Ahrefs' "Competing domains" report - these may differ from your business competitors)
- Run a content gap analysis comparing your domain against all 5 competitors
- Filter for keywords where at least 2 competitors rank in the top 20 but you do not rank at all
- Export and categorise by intent and topic cluster
This typically produces 100 to 500 gap keywords - topics where proven demand exists and you have zero visibility. These represent your biggest immediate opportunities.
A pattern I see consistently across Australian projects: businesses assume they know their competitors, but organic competitors are often different from business competitors. A Brisbane law firm might compete for clients with other Brisbane law firms, but in organic search, they compete with national legal directories, government websites, and legal content publishers. The competitor gap analysis must use actual organic competitors, not assumed business competitors.
Step 5: Evaluate Keyword Metrics
Not all keywords are worth targeting. For each candidate keyword, evaluate:
Search volume. How many people search for this term monthly in Australia? In the Australian market, volumes are naturally lower than US data. A keyword with 200 monthly searches in Australia can still be highly valuable if the intent is commercial and the conversion value is high. Do not dismiss low-volume keywords automatically - in the Australian market, 50 to 200 monthly searches for a commercial term can represent significant revenue.
Keyword difficulty. How hard will it be to rank on page one? Tools like Ahrefs score this from 0 to 100 based on the backlink profiles of currently ranking pages. For most Australian SMEs, targeting terms with difficulty scores under 40 offers the best balance of achievability and value.
Click-through potential. Not all searches result in clicks. If a keyword triggers an AI Overview, a featured snippet, or a knowledge panel that answers the query directly, fewer users will click through to any website. Ahrefs' "Clicks" metric helps identify keywords where searches actually translate to website visits.
Commercial value. What is a visitor from this keyword worth to your business? A keyword like "emergency plumber Gold Coast" with 90 monthly searches may be worth far more than "plumbing tips" with 1,000 monthly searches if each emergency call generates $500 in revenue.
Cost per click (CPC). Even if you are doing SEO rather than paid ads, the CPC indicates commercial value. High CPCs signal that advertisers find the keyword profitable - which means organic rankings for those terms are also likely to drive valuable traffic.
Step 6: Cluster and Map Keywords
Individual keywords do not exist in isolation. Related keywords need to be grouped into topic clusters - collections of semantically related terms that can be served by a single page or a group of closely linked pages.
For example, the keywords "keyword research," "how to do keyword research," "keyword research tools," and "keyword research process" all relate to the same core topic and can be covered by a single comprehensive page (like this one). But "keyword research for eCommerce" might warrant its own dedicated page because the search intent and required content depth differ.
Cluster your keywords by:
- Topic similarity: group terms that can be answered by the same content
- Intent alignment: terms with different intents need different pages, even if the topic overlaps
- Content format: informational clusters need guides and articles; commercial clusters need service or product pages
Once clustered, map each cluster to a specific page on your website - either existing pages that need optimisation or new pages that need to be created. This keyword map becomes the execution plan for your content strategy.
AU/NZ Spelling Variations: The Hidden Keyword Challenge
This is an area that international SEO guides consistently miss, and it has real consequences for Australian businesses.
Australian English follows British spelling conventions: optimisation (not optimization), colour (not color), analyse (not analyze), organisation (not organization), behaviour (not behavior). In search, these spelling differences create distinct keyword variants with different search volumes.
Here is what the data shows:
- "Search engine optimisation" and "search engine optimization" are treated as related but distinct queries by Google
- In Australia, the British spelling typically captures 60 to 70 per cent of total search volume, but the American spelling still captures 30 to 40 per cent
- For some terms, the split is closer to 50/50 - "jewellery" (33,100 monthly searches in Australia) versus "jewelry" (14,800 monthly searches)
- Google is increasingly good at understanding spelling variants, but ranking positions can still differ between variants
My recommendations for Australian businesses:
Use Australian English in all primary content. Your title tags, H1s, body copy, and meta descriptions should use Australian spelling. This aligns with your brand, your audience expectations, and the majority of search volume.
Naturally incorporate American variants where they fit. If your content mentions "search engine optimisation" ten times, one natural mention of "optimization" (perhaps when quoting an American source or tool) can help capture the variant search volume without looking unnatural.
Check both variants during keyword research. When evaluating any keyword that contains a spelling variation, pull data for both versions and combine the volumes for a true picture of total demand. Many Australian SEO practitioners only check the British spelling and underestimate the total opportunity.
Pay special attention to tool names and technical terms. American-origin tools and platforms use American spelling. "Google Search Console performance optimization" uses American spelling because that is how the tool names the feature. Content about these tools may need to accommodate both conventions naturally.
For businesses targeting both Australian and New Zealand markets, the spelling conventions are largely identical. New Zealand follows British English spelling, so your Australian content works across both markets without modification. The main consideration for NZ is geographic: place names, local directories, and ".co.nz" link opportunities.
Keyword Research Tools: A Practitioner's Assessment
I have used every major keyword research tool over 15 years. Here is an honest assessment of what works and what is overhyped.
Essential Tools
Ahrefs ($99 to $999 USD/month) - My primary keyword research tool. The Keywords Explorer provides accurate Australian search volumes, keyword difficulty scores, click data, and SERP analysis. The content gap feature is the best in the market for competitor analysis. The database covers Australian search data comprehensively.
SEMrush ($139 to $499 USD/month) - Comparable to Ahrefs with some advantages in keyword clustering and intent classification. SEMrush automatically labels every keyword with its primary search intent, which saves significant manual analysis time. Their database covers 27.3 billion keywords across 142 locations.
Google Search Console (free) - Indispensable for understanding which keywords your site already appears for. The Performance report shows impressions, clicks, and average position for every query triggering your site in search results. This is first-party Google data - no third-party tool can match its accuracy for your existing keyword footprint.
Google Keyword Planner (free with Google Ads account) - Useful for validating search volumes and identifying keyword variations. The data comes directly from Google, but volumes are shown as ranges unless you are running active ad campaigns. I use it as a secondary validation source.
Useful but Not Essential
Screaming Frog ($259 AUD/year) - Primarily a technical SEO crawler, but its integration with Search Console and Google Analytics data makes it valuable for mapping existing keyword performance to specific pages.
AnswerThePublic (free tier available) - Generates question-based keywords from Google Autocomplete data. Useful for identifying FAQ content opportunities and understanding how people phrase questions around your topics.
Google Trends (free) - Essential for understanding seasonal search patterns in Australia. Tax-related searches spike from July to October. Retail searches peak November to December. Understanding these patterns helps you time content publication for maximum impact.
My Honest Take
No tool gives you a keyword strategy. Tools give you data. The strategy comes from interpreting that data in the context of your business goals, competitive landscape, and market position. I have seen businesses spend thousands on SEMrush enterprise plans and still target the wrong keywords because nobody with strategic experience was interpreting the data.
If budget is a constraint, start with Google Search Console (free) and Google Keyword Planner (free). These two tools alone can inform a solid foundational keyword strategy for an Australian SME. Add Ahrefs or SEMrush when you are ready to do competitive analysis and content gap work at scale.
How to Prioritise Keywords
You now have hundreds (or thousands) of keyword candidates. The final and most critical step is deciding which ones to target first. This is where experience and business judgement matter more than any tool.
I use a prioritisation framework that scores each keyword cluster across four dimensions:
Business Value (Weight: 40%)
How directly does this keyword relate to revenue? A keyword like "hire SEO consultant Gold Coast" has direct commercial value - the searcher is looking to buy exactly what you sell. A keyword like "what is SEO" has indirect value - it builds awareness and authority but does not generate immediate leads. Prioritise keywords that connect to your highest-margin products or services.
Achievability (Weight: 30%)
Can you realistically rank for this term within 6 to 12 months? Consider your current domain authority, existing content, and the competition level. Targeting "insurance Australia" when you are a two-year-old website competing against Allianz and NRMA is a waste of resources. Target achievable terms first, build authority, then expand to harder targets.
Search Volume (Weight: 20%)
Higher volume means more potential traffic, but only if the previous two dimensions check out. A 10,000-volume keyword you cannot rank for is worth less than a 100-volume keyword you can rank for next month that drives qualified leads.
Strategic Value (Weight: 10%)
Does targeting this keyword support a broader content strategy? Some lower-volume keywords are worth targeting because they complete a topic cluster, fill a content gap, or support internal linking to your most important pages. Keyword research for topic cluster development requires this strategic lens.
Apply this framework to your keyword clusters (not individual keywords) and rank them. The top-scoring clusters become your first priority for content creation and on-page optimisation. Review and re-prioritise quarterly as rankings, competition, and business goals evolve.
In my experience, Australian businesses get the best results by focusing on 3 to 5 keyword clusters per quarter rather than spreading effort across dozens of topics. Depth of coverage in a focused area builds topical authority faster than thin coverage across a broad surface.
Keyword Research for Different Business Types
The keyword research process remains the same regardless of business type, but the emphasis shifts depending on your model.
Local Service Businesses
For plumbers, dentists, lawyers, and other location-dependent businesses in Australia, keyword research should prioritise geographic modifiers. "Plumber" is a seed keyword. "Emergency plumber Brisbane northside" is the actual target. I typically find that suburb-level and region-level keyword combinations offer the best balance of search volume and achievability for local businesses. Pair these with your Google Business Profile optimisation for maximum local visibility.
eCommerce Businesses
Product-level keyword research is essential for eCommerce. Each product category page, subcategory page, and high-value product page needs a targeted keyword cluster. Focus on commercial and transactional intent keywords - "buy," "best," "cheap," "compare," and product-specific terms. Long-tail product queries ("women's leather ankle boots size 8 Australia") convert at significantly higher rates than head terms ("women's boots").
B2B and Professional Services
For consultancies, SaaS companies, and professional services firms, keyword research should focus on the decision journey. Top-of-funnel informational content captures awareness ("what is enterprise resource planning"), middle-funnel commercial content captures evaluation ("ERP software comparison Australia"), and bottom-funnel transactional content captures conversion ("hire ERP consultant Sydney"). Map keywords to funnel stages and ensure you have content serving each stage.
Content Publishers and Media
If your business model depends on advertising revenue or audience building, volume matters more than commercial intent. Focus on informational keywords with high search volume and low competition. Seasonal and trending keyword opportunities can drive significant traffic spikes. Google Trends becomes an essential tool for identifying emerging topics before competition intensifies.
Common Keyword Research Mistakes
After reviewing the keyword strategies of hundreds of Australian businesses, these are the mistakes I see most frequently.
Targeting keywords based on volume alone. High volume often means high competition and low conversion intent. A legal firm targeting "law" instead of "property settlement lawyer Brisbane" is chasing vanity metrics.
Ignoring search intent. Creating a blog post when Google wants a product page (or vice versa) guarantees poor rankings regardless of content quality. Always check the actual SERP before creating content.
Using US keyword data for Australian campaigns. Google Keyword Planner defaults to US data. Ahrefs and SEMrush default to global data. If you are targeting Australian customers, you must filter for Australian search volumes. The differences can be enormous - a keyword with 50,000 monthly searches globally might have only 1,200 in Australia.
Doing keyword research once and never updating. Search behaviour changes. New competitors enter your market. Algorithm updates shift which content types rank. I recommend a full keyword research refresh every 6 months, with monthly monitoring of your core keyword positions through Google Search Console.
Neglecting long-tail keywords. Long-tail keywords (phrases of three or more words) account for over 70 per cent of all Google searches and convert at 2.5 times the rate of short-tail terms. They are less competitive, more specific, and often represent higher-intent searches. An SEO strategy that ignores long-tail keywords is leaving money on the table.
Frequently Asked Questions
How often should I do keyword research?
Conduct a comprehensive keyword research project at the start of any new SEO engagement, then refresh it every 6 months. Between refreshes, monitor your core keyword positions monthly through Google Search Console and adjust tactics if you see significant movement. Market conditions, competitor activity, and algorithm updates can all shift the keyword landscape.
What is a good search volume for Australian keywords?
There is no universal threshold. For commercial keywords where each conversion has high value (legal services, financial planning, B2B software), 50 to 200 monthly searches can represent significant revenue opportunity. For informational content aimed at building awareness, I typically look for 500-plus monthly searches to justify the content investment. Always evaluate volume alongside intent and competition.
Should I target Australian or American spelling keywords?
Use Australian English spelling as your primary keyword target in all content. The British spelling variant captures 60 to 70 per cent of Australian search volume and aligns with audience expectations. Naturally incorporate American spelling variants where appropriate (tool names, quotations) but never compromise your content quality by awkwardly forcing in alternative spellings.
How many keywords should I target per page?
Target one primary keyword cluster per page, not a single keyword. A well-structured page can realistically rank for 10 to 50 related keywords within the same cluster. For example, this page targets "keyword research guide," "how to do keyword research," "keyword research process," and dozens of related long-tail variations - all within the same topic cluster.
What is the best free keyword research tool?
Google Search Console and Google Keyword Planner together provide a solid foundation at no cost. Search Console shows which keywords your site already appears for (with accurate impression and click data from Google itself), while Keyword Planner helps discover new keyword opportunities. For Australian businesses starting out, these two tools are sufficient to build an initial keyword strategy.
Is keyword research still relevant with AI search?
More relevant than ever. AI Overviews tend to answer broad, short-tail queries directly - reducing clicks for generic terms. But specific, long-tail keywords with clear intent still drive clicks because AI cannot fully address nuanced, detailed queries. Keyword research in 2026 means focusing more heavily on specific, intent-rich queries where organic results still capture meaningful click-through traffic.
