How to Find Keywords Your Competitors Rank For (And You Don't)

Somewhere right now, your competitors are ranking for keywords that send them hundreds or thousands of visitors every month. Keywords you could be ranking for too, if you knew what they were. Competitor keyword research is one of the highest-ROI activities in SEO because it reveals proven opportunities. These aren't theoretical keywords from a brainstorming session. They're keywords that real people search for and that real websites already rank for in your niche.

The process of finding these keywords is called keyword gap analysis, and it's more accessible than you might think. You don't need an expensive enterprise tool. In this guide, we'll walk through multiple methods, from free manual techniques to automated tools, so you can find the exact keywords your competitors rank for and start competing for them.

Why Competitor Keyword Research Works Better Than Starting From Scratch

Traditional keyword research starts with a seed keyword and expands outward. That works, but it has a fundamental limitation: you only find keywords related to what you already know about. Competitor keyword research flips the process. Instead of asking "What keywords should I target?", you ask "What keywords are already working for sites like mine?"

This approach is powerful for three reasons:

• Proven demand: If a competitor ranks for a keyword and gets traffic from it, the demand is real. No guessing required.
• Realistic difficulty: If a site similar to yours (in size and authority) ranks for a keyword, you likely can too. You're not chasing keywords that only massive authority sites can win.
• Content ideas: Competitor keywords reveal topics and angles you haven't considered. They often expose entire content categories you're missing.

For more on keyword research fundamentals, check out our roundup of the best keyword research tools.

Step 1: Identify Your Real SEO Competitors

Your SEO competitors aren't always your business competitors. A local bakery's SEO competitors might include food blogs, recipe sites, and Yelp listings, not just other bakeries. Here's how to find them:

Manual Method: Google Your Target Keywords

1. Make a list of 10-15 keywords you want to rank for.
2. Search each one in Google (use an incognito window to avoid personalized results).
3. Note which domains appear repeatedly in the top 10 results.
4. The domains that show up for multiple keywords are your true SEO competitors.

Using the "site:" Operator

Once you've identified competitor domains, use site:competitor.com in Google to see all their indexed pages. This gives you a quick overview of their content strategy and which topics they cover. Pay attention to:

• Their blog categories and topic clusters
• How many pages they have indexed (the total result count)
• Which page titles suggest they're targeting specific keywords

Using TrackSEO for Competitor Discovery

When you run a TrackSEO report, the competitor analysis tab automatically identifies your top SEO competitors based on keyword overlap. Instead of manually searching, you get a list of domains competing for the same keywords you are, ranked by overlap percentage.

Step 2: Extract Competitor Keywords (Free Methods)

You don't need paid tools to start finding competitor keywords. Here are effective free methods:

Google Search Console (For Your Own Keywords First)

Before analyzing competitors, know your own keyword profile. Google Search Console shows every keyword your site appears for in search results, including position, clicks, and impressions. Export this data. You'll compare it against competitor keywords later to find gaps.

Google's "People Also Ask" and "Related Searches"

Search for your competitor's primary keywords and examine the "People Also Ask" boxes and "Related Searches" at the bottom of the SERP. These reveal the keyword ecosystem around each topic. If your competitor ranks for "best running shoes" but you don't have content addressing "People Also Ask" questions like "What running shoes do podiatrists recommend?", that's a gap.

Analyzing Competitor Page Titles and Headings

Visit your competitor's blog or resource section. Their page titles and H1 headings almost always contain their target keywords. Create a spreadsheet with:

• Page URL
• Page title (contains the primary keyword)
• H2 headings (contain secondary keywords)
• Whether you have equivalent content (yes/no)

Every "no" in that last column is a keyword gap opportunity.

Step 3: Extract Competitor Keywords (Paid Tools)

Free methods work, but paid tools dramatically speed up the process and reveal data you can't get manually (like search volume and difficulty scores).

TrackSEO Competitor Analysis ($2.99 per report)

TrackSEO's competitor tab does keyword gap analysis automatically. When you run a report on your domain, it:

1. Identifies your top SEO competitors based on keyword overlap
2. Shows keywords your competitors rank for that you don't
3. Generates a content roadmap with prioritized keyword opportunities
4. Estimates traffic potential for each gap keyword

At $2.99 per report with no subscription, it's the most affordable way to get this data. You run it when you need it and pay nothing when you don't. Compare that to subscription tools that charge monthly whether you use them or not. For more on affordable options, see our cheap SEO tools guide.

Ahrefs Content Gap Tool

Ahrefs' Content Gap feature lets you enter up to 10 competitor domains and find keywords that one or more of them rank for but you don't. It's powerful, but at $129/month for the Lite plan, it's a significant investment for occasional use. Read our full Ahrefs alternatives comparison if you're weighing options.

Semrush Keyword Gap

Semrush's Keyword Gap tool works similarly. Enter your domain alongside up to four competitors and see a Venn diagram of keyword overlap. The "Missing" and "Weak" filters are particularly useful. Missing shows keywords only your competitors rank for, while Weak shows keywords where you rank but significantly lower. See our Semrush alternatives for more context on pricing and value.

Step 4: Filter and Prioritize Your Keyword Gaps

Finding competitor keywords is the easy part. The hard part is deciding which ones to target. Here's a prioritization framework:

The Opportunity Score Matrix

Priority	Criteria	Action
High	High volume, low difficulty, high relevance	Create content immediately
Medium	Medium volume, medium difficulty, high relevance	Add to content calendar
Low	Low volume or high difficulty or low relevance	Monitor, deprioritize

When evaluating each keyword gap, ask yourself these questions:

• Relevance: Would someone searching this keyword be interested in my product or service? A keyword with 10,000 monthly searches is worthless if the searchers aren't potential customers.
• Search intent: Is the searcher looking to buy, learn, compare, or navigate? Match your content type to the intent. If the SERP shows mostly product pages, a blog post won't rank well.
• Difficulty vs. your authority: If your Domain Authority is 25, targeting keywords where the top results all have DA 60+ is a long-term play, not a quick win. Focus on keywords where competitors with similar authority are ranking.
• Content gap size: Is this a keyword where you have zero content, or do you have a related page that just needs optimization? Optimizing existing content is faster than creating from scratch.

Step 5: Turn Keyword Gaps Into Content

Once you've prioritized your keyword gaps, it's time to create or optimize content. Here's the approach for each scenario:

When You Have No Content for the Keyword

1. Analyze the top 5 ranking pages for the keyword. Note their content format (guide, listicle, comparison, tool), word count, and heading structure.
2. Identify what they all cover (table stakes content) and what's missing (your opportunity to add unique value).
3. Create content that covers the table stakes topics thoroughly and adds something competitors missed: original data, personal experience, expert quotes, or a unique angle.
4. Optimize your page title, meta description, H1, and URL to include the target keyword naturally.

When You Have Weak Content for the Keyword

1. Compare your existing page against the top-ranking pages. Where does your content fall short? Common gaps: insufficient depth, missing subtopics, outdated information, poor structure.
2. Update and expand your content to fill those gaps.
3. Improve internal linking to the page (more on this in our internal linking strategy guide).
4. Resubmit the updated URL in Google Search Console for faster re-indexing.

Step 6: Monitor and Iterate

Competitor keyword research isn't a one-time activity. Your competitors are constantly publishing new content and ranking for new keywords. Build a habit of running competitor analysis quarterly.

• Monthly: Check Google Search Console for new keywords you're appearing for and track position changes.
• Quarterly: Run a fresh TrackSEO report to see updated competitor data and new keyword gaps.
• After publishing: Track whether your new content starts ranking for the target keywords within 4-8 weeks. If not, revisit the content quality and backlink profile.

Real Example: Keyword Gap Analysis in Action

Let's walk through a simplified example. Imagine you run a project management SaaS tool. You run a competitor analysis and find that three competitors all rank for "project timeline template" (2,400 monthly searches, medium difficulty), but you have zero content for this term.

Analyzing the SERP, you see the top results are blog posts offering downloadable templates. Your action plan:

1. Create a comprehensive guide on project timeline templates
2. Include a free downloadable template (this matches search intent)
3. Add screenshots from your tool showing how to create timelines (subtle product promotion)
4. Build internal links from your existing project management content to this new page

Within 8 weeks, you're on page 1 for a keyword with 2,400 monthly searches. That's the power of competitor keyword research: you found a proven opportunity instead of guessing.

FAQ: Competitor Keyword Research

How many competitors should I analyze?

Start with 3-5 competitors. More than that creates noise. Choose competitors that are similar in size and authority to your site, plus one aspirational competitor you'd like to compete with long-term.

How do I find competitor keywords for free?

Use Google Search Console for your own keywords, then manually search your target keywords to see who ranks. Analyze competitor page titles and headings to identify their target keywords. For automated gap analysis at a low cost, TrackSEO's $2.99 reports are the most budget-friendly option. For more free options, explore our list of free SEO audit tools.

What's the difference between keyword gap analysis and competitor analysis?

Competitor analysis is the broad practice of studying your competitors' SEO strategies (backlinks, content, technical SEO). Keyword gap analysis is a specific subset that focuses on finding keywords they rank for that you don't. Most SEO tools offer both, but keyword gap analysis delivers the most directly actionable results.

How often should I do competitor keyword research?

At minimum, quarterly. The search landscape changes constantly as competitors publish new content and Google updates its algorithm. Monthly analysis is ideal if you're in a competitive niche or actively growing your content strategy.