Why Your Keyword Research Tool Matters
I manage SEO for 25+ clients across San Diego and use multiple keyword research tools every day. My honest conclusion after years of testing: no single tool is comprehensive, every tool has data gaps, and the best keyword research process uses at least two tools in combination. Here is what I actually use, what each tool does best, and a workflow you can replicate regardless of your budget.
Free Tools
Google Search Console
Best for finding keywords your site already has some traction on. You get real click and impression data — actual Google data, not an estimate from a third-party database. If you have any existing pages with organic visibility, Search Console will show you the exact queries driving impressions and clicks. Essential, and the first place I check when auditing a client’s existing keyword performance. Use it every week.
Google Keyword Planner
Best for broad volume ranges and initial keyword discovery. Volumes are displayed as ranges for accounts without active ad spend (100-1,000, 1,000-10,000). Good for confirming whether a topic has meaningful search volume before investing content time, but you need a paid tool to get precise numbers. The best use case: entering seed keywords and reviewing the suggested related keywords — often surfaces terms you would not have thought of.
Google Trends
Best for seasonal patterns and regional interest comparisons. If you are planning content for a San Diego seasonal service — air conditioning, tax preparation, holiday gifting — Trends shows you exactly when search interest peaks so you can time your content correctly. I use Trends primarily for content calendar planning and for comparing relative interest between two competing keyword ideas.
AlsoAsked
Best for question-based keyword research and FAQ content planning. Pulls data from Google’s People Also Ask feature to map out the question clusters around any topic. No volume data on the free tier, but the question structures it surfaces are invaluable for building FAQ sections and long-tail content. I use this before writing any informational post.
Paid Tools
Ahrefs
My primary tool for client research, used daily. Starts around $129/month for the Lite plan. What sets Ahrefs apart is the clicks data — it shows estimated actual clicks per month, not just search volume, which accounts for zero-click searches and featured snippet appearances. The competitor backlink analysis is also the strongest of any tool I have used. If I could only use one paid SEO tool, Ahrefs would be it.
Semrush
An all-in-one SEO and PPC platform starting around $139/month. I use both Ahrefs and Semrush because their keyword databases are different and comparing results sometimes surfaces keywords that only appear in one database. Semrush is particularly strong for PPC keyword research — the CPC data and competitive density metrics are more detailed than Ahrefs for paid search purposes. If you are running Google Ads alongside SEO, Semrush is worth having in your stack.
Moz Pro
Solid fundamentals and the industry-standard Domain Authority metric. Starts around $99/month. I use Moz primarily for Domain Authority comparisons — when assessing link building opportunities or setting client ranking timeline expectations, Moz DA is still the most widely understood authority metric. The keyword research capabilities are less robust than Ahrefs or Semrush but adequate for less intensive needs.
Keywords Everywhere
A browser extension that shows search volume, CPC, and competition data inline while you browse Google, YouTube, Amazon, and other platforms. Credits-based model — inexpensive for moderate use. An excellent low-cost complement to a primary tool. I use it for quick volume checks while browsing search results with clients without needing to open a separate tool.
My Keyword Research Workflow
- Ahrefs Keyword Explorer: Start with seed keywords, expand via “Matching terms” and “Related terms” reports, export the full list
- Google Search Console: Review existing performance data to find keywords with ranking potential (high impressions, low CTR, positions 8-20)
- AlsoAsked: Map out question-based opportunities around each target topic for FAQ and long-tail content
- Google Trends: Check seasonal patterns for any time-sensitive topics
- Google Keyword Planner: Final validation for topics where I want a second volume estimate to cross-reference
Local SEO Keywords: A Note
For local businesses, do not get caught up in raw volume numbers. A keyword with 50 monthly searches in your city is worth 100x more than a national keyword with 5,000 monthly searches — because the intent is matched to your actual service area. “Botox San Diego” with 200 monthly searches is more valuable to a San Diego med spa than “what is botox” with 5,000. Local modifiers are often the difference between traffic that converts and traffic that just visits.
| Tool | Cost | Best Use | Data Quality |
|---|---|---|---|
| Google Search Console | Free | Own site performance | Excellent (real data) |
| Google Keyword Planner | Free | Volume ranges, discovery | Good (estimated ranges) |
| AlsoAsked | Free / Credits | Question keyword mapping | Good (PAA data) |
| Ahrefs | $129+/mo | Comprehensive research | Excellent |
| Semrush | $139+/mo | SEO + PPC research | Excellent |
| Moz Pro | $99+/mo | DA metrics, fundamentals | Good |
| Keywords Everywhere | Credits-based | Inline SERP data | Good |
If you want expert keyword research done for your business as part of a full SEO strategy, check out our SEO services or get in touch. Solid keyword strategy is the foundation of every campaign I build. I also walk through keyword research as part of my SEO audit process.
Frequently Asked Questions
Is a free keyword research tool good enough for a small business?
For a small business doing basic content planning, Google Search Console and Google Keyword Planner together can get you reasonably far. You will miss the precision and competitive intelligence that paid tools provide, but you will not be flying blind. The most important thing is to do keyword research before writing — even rough volume estimates from Keyword Planner are better than publishing content with no search intent analysis at all.
How do I find low-competition keywords with free tools?
Start with Google Keyword Planner for seed keyword ideas. Then search each candidate keyword in Google incognito and manually assess the competition — look at what is ranking. Are the top results from major national brands and authoritative publications? That keyword is likely too competitive. Are the top results from local businesses and smaller sites? That suggests a winnable opportunity. Supplement with AlsoAsked to find question-based variations that often have lower competition than head terms.
What is search intent and why does it matter for keyword research?
Search intent is the underlying goal behind a search query. There are four main types: informational (I want to learn something), navigational (I want to find a specific site), commercial investigation (I am comparing options before buying), and transactional (I want to buy or contact right now). Matching your content format and CTA to the intent of your target keyword is critical. A page targeting an informational keyword should be an educational resource. A page targeting a transactional keyword should be a service page with a clear contact form or booking button.
Should I target one keyword per page or multiple keywords?
Target one primary keyword per page as your optimization focus, but write comprehensively enough to naturally cover related terms. A well-written, thorough page on “SEO for dentists in San Diego” will naturally rank for variations like “dental SEO,” “dentist marketing San Diego,” and “how to get more dental patients from Google” without any additional optimization effort. Google’s semantic understanding means you do not need to create separate pages for every variation — you need to create genuinely useful content on each distinct topic.
How often should I update my keyword research?
For active clients, I revisit target keyword lists quarterly. Search volumes, competition levels, and SERP layouts change over time. New keywords emerge as consumer behavior shifts — “AI overview SEO” did not exist as a search term two years ago. Quarterly reviews ensure you are targeting terms that reflect current search behavior and that your content strategy adapts to changes in competitive landscape and Google features.
