Keyword Explorer
Finds, groups, and scores search terms so you can choose which keywords to target based on demand, competition, and relevance.
If you have ever picked a keyword on a low score and still failed to rank, you already know the number is not the whole story.
Key points
- Start with a broad seed keyword or topic, then use a keyword finder to expand to related terms and long-tail variations.
- Combine search volume with keyword difficulty to avoid chasing high-demand keywords that are too competitive.
- Always review the SERP for your target keywords to understand intent and competition beyond the score.
- Treat all keyword metrics as estimates and update your keyword research regularly as search behaviour changes.
- Organise promising keywords into lists by topic or intent to streamline content planning and tracking.
The same seed, two different outcomes
A fitness blogger used Google Keyword Planner to target 'home workouts' based on 14,000 monthly searches and a 'low' competition label. After publishing, they earned less than 50 visits per month. Checking Ahrefs showed the same keyword had a difficulty score of 68 and top results from major health sites. The PPC competition label did not reflect organic difficulty. The blogger learned to verify using an SEO-specific keyword explorer.
Three ways keyword explorers mislead you
- PPC versus organic difficulty Google Keyword Planner is built for advertisers, so its competition metric reflects bid volume, not organic ranking difficulty. You may see 'low competition' for a query that is actually very hard to rank for.
- Stale volume data Search volume is an average over time and can drop dramatically. A keyword that shows 5,000 monthly searches today might have 200 in two months due to seasonality or trend shifts.
- One-size-fits-all difficulty Every tool estimates difficulty differently. A score of 40 in one tool might correspond to 70 in another. Comparing absolute scores across tools without understanding their methodology is risky.
Four metrics you must combine
- Search volume Indicates how many searches a keyword gets per month, but high volume alone doesn't mean a keyword is worth targeting if the searcher intent doesn't match your content.
- Keyword difficulty Estimates how hard it is to rank for a keyword based on the authority and relevance of current top-ranking pages. Use it to avoid overly competitive terms.
- SERP features Check whether the results page is dominated by ads, featured snippets, or video results. These can reduce organic click-through rates even if you rank well.
- Search intent Identify whether the query is informational, navigational, commercial, or transactional. Your content must match the intent to have any chance of ranking.
Three things a keyword explorer cannot do
- Predict your ranking ability It can't factor in your site's authority, backlink profile, or content quality. A low difficulty score won't guarantee a top spot if your page is thin or poorly optimised.
- Understand your brand voice It can't tell you if a keyword aligns with your brand's tone or expertise. Some relevant terms may be too generic or technical for your audience.
- Replace manual SERP inspection No tool can fully replicate the insight of clicking through to see who ranks, what content they offer, and what gaps you might fill. Always verify with a real search.
Common questions
How do I use Google Keyword Planner for SEO?
Use it for keyword discovery and volume estimates, but not for organic difficulty. Always cross-check with an SEO-focused tool or manual SERP review.
What is the best free keyword research tool?
Google Keyword Planner is free with an Ads account. Other free options include Ubersuggest and AnswerThePublic. Each has limitations, so trial multiple.
How to find best keywords for YouTube channel?
Use a keyword explorer filtered by YouTube or video results. Focus on search volume, competition, and what similar channels are ranking for.
Sources
- Moz Help: Guide to Moz's Keyword Explorer Official documentation for Moz's keyword research tool
- Google Ads Help: Keyword Planner Google's official tool for keyword discovery and forecasting
- Ahrefs Academy: Introduction to Keywords Explorer Video tutorial covering Ahrefs' keyword research features