A content gap analysis is a comparison of what your site covers against what your audience searches for and what competing pages cover, to find topics you are missing or answering badly. The output is a short, ranked list of pages to write or improve, not a spreadsheet of every keyword you do not rank for.
What counts as a content gap?
A gap is a question your reader has that your site does not answer well. There are three kinds, and they need different work:
- Missing topic. No page on your site covers the question.
- Thin or weak page. You have a page, but it answers less than the pages ranking above it.
- Wrong format or intent. The page exists but does a different job than the searcher wants, such as a sales page for an informational question. See what is search intent.
Treating all three as "write a new post" creates duplicates. Check for the second and third kinds first, because fixing an existing page is faster than starting a new one.
Why most gap analyses produce bad lists
The popular method is to enter a competitor's domain into a tool and export every keyword they rank for and you do not. That list is huge, full of keywords that do not fit your product, and silent about whether you could win. A gap only matters if the topic fits your business, you can add something to it, and the question is one your reader asks.
Google's own guidance gives a better test. Its helpful content guidance asks whether content "provide[s] substantial value when compared to other pages in search results" and whether it provides "original information, reporting, research, or analysis". Read that as the bar for a gap worth filling: you must be able to say what your page adds that the existing results do not.
How do you run a content gap analysis?
- List what you already have. Export every URL with its title and main topic. A content audit does this job. Without it you will propose pages that already exist.
- List what readers ask. Pull questions from search suggestions, your support inbox, sales calls and the search queries Search Console already shows for your site. Real questions beat tool guesses.
- List what competitors cover. Pick two or three sites that serve the same reader, not necessarily the same product. Note which topics they cover that you do not.
- Map and mark. For each question, mark it covered well, covered weakly, or missing. Read the top results for the weak and missing ones.
- Score and cut. Rank the gaps and keep only a few.
How do you score a gap?
Use four yes or no questions and keep the gaps that score best:
| Question | If no |
|---|---|
| Is the reader someone you want as a customer? | Skip it, even if the traffic is high |
| Can you add something the top results lack? | Skip it or find a different angle |
| Is the keyword difficulty realistic for your site? | Pick a narrower variation |
| Does it fit a topic you are building depth in? | Park it |
The last question matters more than it looks. Pages that support each other inside one subject make the whole set stronger, which is the idea behind a topic cluster. A gap in a subject you already cover is usually worth more than a gap in a new one.
A worked example
Say a small accounting software company has posts on invoicing and late payments. Its list of reader questions includes "how to chase an overdue invoice politely", "what is net 30", and "how to do payroll", and a competitor ranks for all three. Running the questions above:
- Overdue invoices: fits the audience and the existing posts, and nobody offers sample wording, so it is a strong gap.
- Net 30: a short definition many sites already cover well. Weak page at best, so fold it into the invoicing post as a section.
- Payroll: a different reader and a different product. Skip it.
Three gaps from the competitor list became one new page and one edit. That is a healthy result. If your analysis recommends thirty pages, it is a keyword export, not an analysis.
Gaps in AI answers
You can run the same check on AI assistants. Ask ChatGPT or Perplexity the questions your customers ask and see which sources they cite. A question where the answer is vague or cites nobody useful is an opening. To track this over time, see how to track AI citations.
How often should you repeat it?
Every quarter is enough for most small sites. Run it sooner after a product launch or a big drop in traffic. Between rounds, keep a running list of reader questions so the next round starts with real material.
Frequently Asked Questions
What is the difference between a content gap analysis and a content audit?
An audit reviews pages you already have. A gap analysis compares those pages to reader demand and competitors to find what is missing.
Do I need a paid tool to find content gaps?
No. Search Console, search suggestions, your support questions and a careful read of the top results will find most worthwhile gaps. Paid tools mainly save time.
How many gaps should I act on at once?
A handful. Pick the few that fit your audience and where you can add something new, then publish them well before picking more.
Should I copy a competitor's topics?
Use them as a prompt, not a plan. Cover a topic only if you can say what your page adds, since a near copy gives searchers no reason to choose it.
Can a gap be an existing page?
Yes. A page that is thin or answers a different intent than the searcher wants is a gap, and improving it is often faster than writing new content.