How to Find the Right Competitor Keywords to Improve Your Website’s SEO

One of the most efficient shortcuts in SEO is this: instead of guessing which keywords to target, let your competitors show you exactly which terms are driving their traffic — then go after the same keywords with better content and smarter optimization.

Competitor keyword research eliminates guesswork, surfaces opportunities you’d never find through manual brainstorming, and gives you a proven roadmap to traffic growth. This guide walks you through exactly how to find, evaluate, and prioritize competitor keywords in 2026.

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Why Competitor Keyword Research Is a Shortcut to Traffic

Traditional keyword research asks: ‘What might my audience be searching for?’ Competitor keyword research asks a better question: ‘What are people actually searching for that leads them to my competitors?’ The second question is more powerful because it’s grounded in real search behavior, not assumptions.

• Competitors have already done years of testing — their ranking keywords represent proven traffic opportunities
• If a keyword drives traffic to your competitor, it will drive traffic to you once you rank for it
• Competitor research reveals gaps — keywords your competitors rank for that you don’t — which are your most immediate growth opportunities
• It surfaces keyword opportunities you wouldn’t have thought to target independently

The SEO arbitrage mindset: Your competitors’ keyword rankings are a map of your own traffic opportunity. Every keyword they rank for that you don’t is a gap you can close with the right content and optimization.

Step 1: Identify Your True SEO Competitors

Your SEO competitors are not necessarily your business competitors. They are the websites that currently rank for the keywords your potential customers are searching — regardless of whether they sell the same products or services you do.

How to find your actual SEO competitors:

• Search your 5 most important keywords in Google and note which sites consistently appear in the top 10
• Use SEMrush’s Domain Overview tool — enter your domain and click ‘Competitors’ to see sites with the highest keyword overlap
• Use SEMrush’s Organic Research tool — the ‘Competitors’ tab reveals all sites competing for your same keyword universe
• Look for patterns: which 5–10 domains appear most frequently across your target keyword searches?

Types of SEO competitors to identify:

• Direct competitors: Same product/service, same target audience
• Indirect competitors: Different product but same audience (e.g., a nutrition blog competing with a supplement store for informational keywords)
• Content competitors: Sites like blogs, review sites, and magazines that rank for commercial keywords in your niche without selling directly

All three types are worth analysing — content competitors in particular often reveal informational keyword opportunities that drive high-intent traffic you’d otherwise miss.

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Step 2: Analyse Competitor Organic Keywords

Once you’ve identified your top 5–10 SEO competitors, the next step is extracting the full list of keywords each competitor ranks for. This is where the real opportunity discovery happens.

How to extract competitor keywords with SEMrush:

• Open SEMrush’s Organic Research tool
• Enter a competitor’s domain and go to the ‘Positions’ tab
• You’ll see every keyword the competitor ranks for, their position, estimated monthly traffic, and keyword difficulty
• Sort by ‘Traffic’ (highest first) to see their most valuable ranking keywords
• Export the full keyword list for further analysis

What to look for in competitor keyword lists:

• High-traffic keywords where competitor ranks in positions 1–5 — these are their best performers and your highest-value targets
• Keywords where competitor ranks in positions 6–20 — their weak rankings are your easier wins
• Keyword types: product keywords, category keywords, informational blog keywords, comparison keywords
• Long-tail variants of their strongest keywords — often lower competition with solid intent

Step 3: Run a Keyword Gap Analysis

The keyword gap is the difference between what your competitors rank for and what you rank for. Keywords in the gap represent your most direct and actionable SEO growth opportunities.

How to run a keyword gap analysis:

• In SEMrush, go to the Keyword Gap tool
• Enter your domain and up to 4 competitors
• Select ‘Organic Keywords’ and run the analysis
• Filter for ‘Missing’ keywords — these are terms all your competitors rank for but you don’t
• Filter for ‘Weak’ keywords — terms you rank for but at much lower positions than competitors

Prioritizing gap keywords:

• High volume + low difficulty + missing from your site = highest priority opportunity
• High volume + moderate difficulty + competitors rank position 1–3 = important medium-term target
• Low volume + very low difficulty + clear buyer intent = quick win worth pursuing
• Competitor ranks position 6–20 + you don’t rank at all = beatable opportunity with good content

The best gap keywords: Look specifically for keywords where multiple competitors rank but none of them rank particularly well (all in positions 6–20). This signals that existing content is weak — a genuinely great page on this topic could rank #1 relatively quickly.

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Step 4: Analyse Competitor Top Pages (Not Just Keywords)

Looking at individual keywords gives you data points. Looking at competitor top pages gives you strategy. Understanding which pages drive the most organic traffic for your competitors reveals the content formats, topics, and approaches that resonate most in your market.

How to analyze competitor top pages:

• In SEMrush’s Organic Research tool, go to the ‘Pages’ tab for each competitor
• Sort by estimated organic traffic — these are their most valuable content assets
• Click through to each top page and study: content format, word count, heading structure, angle, and quality
• Identify patterns: What types of content (product pages, comparison posts, how-to guides, listicles) drive the most traffic for them?

What to do with this intelligence:

• Create better versions of their top-performing content — more comprehensive, more current, better structured
• Target the same keywords their top pages rank for, but with superior content and stronger on-page optimization
• Identify topics their top pages cover poorly — these are your fastest ranking opportunities
• Spot content formats that consistently perform in your niche and replicate that format

Step 5: Evaluate and Filter the Right Competitor Keywords to Target

Not every competitor keyword is worth pursuing. After collecting your opportunity list, apply this filtering framework to identify the keywords most worth your investment:

The 4-filter competitor keyword evaluation:

• Filter 1 — Intent match: Does this keyword attract people who could become your customers? Eliminate keywords that target the wrong audience even if competitors rank for them
• Filter 2 — Difficulty vs your current DR: Eliminate keywords with KD significantly above your domain’s current authority level — add to a future pipeline instead
• Filter 3 — Business value: Assign a simple 1–3 business relevance score. Only pursue keywords with a score of 2 or 3
• Filter 4 — Page type match: Do you have the right type of page to target this keyword? (product page, category page, blog post, comparison page)

The final priority ranking:

• Tier 1 (target now): High intent, achievable KD, high business value, right page type already exists or easy to create
• Tier 2 (target next quarter): Good intent and business value but requires creating new content or higher authority
• Tier 3 (long-term pipeline): Strong keywords but currently out of reach — revisit as your domain authority grows

Step 6: Map Competitor Keywords to Your Content Plan

The final step transforms competitor keyword research from analysis into action — by mapping every Tier 1 keyword to a specific content plan:

• Existing page: Optimize an existing page for this keyword (add to keyword targeting, improve content, build internal links)
• Content refresh: Update an existing page that currently ranks weakly for this keyword
• New content: Create a new page specifically targeting this keyword
• Assign to content calendar: Set a specific publishing date for new content targets
• Set tracking: Add every target keyword to your rank tracking tool so you can monitor progress

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Competitor Keyword Research Checklist

• ✅ 5–10 true SEO competitors identified (not just business competitors)
• ✅ Full organic keyword list extracted for each competitor
• ✅ Keyword Gap analysis run — Missing and Weak opportunities identified
• ✅ Competitor top pages analyzed for content format and topic patterns
• ✅ All gap keywords filtered by intent, difficulty, and business value
• ✅ Tier 1, 2, and 3 priority keywords assigned
• ✅ All Tier 1 keywords mapped to existing pages or new content plan
• ✅ Content calendar updated with new target keyword priorities
• ✅ All target keywords added to rank tracking
• ✅ Competitor keyword research scheduled for quarterly repeat

Final Thoughts

Competitor keyword research is one of the most efficient practices in SEO because it builds on work already done — your competitors have spent years earning rankings that reveal exactly where your traffic opportunities lie. By systematically identifying gaps, prioritizing opportunities, and creating content that outperforms what’s already ranking, you compress the timeline from SEO investment to meaningful organic traffic growth.

Run a fresh competitor keyword gap analysis every quarter — as your competitors and the search landscape evolve, new opportunities continuously emerge. The businesses that check most regularly are the ones that never miss a growing keyword before competitors consolidate their rankings.

Outrank your competitors with their own keyword data: SEMrush’s Organic Research, Keyword Gap, and Position Tracking tools give you complete competitor keyword intelligence. Start your free trial at semrush.com.

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