How to Do a Content Gap Analysis: Keywords Your Competitors Rank for and You Don't

A content gap analysis is the job of finding keywords your competitors rank for and you do not appear for at all. You do not have to discover every keyword from scratch; a competitor getting traffic from it has already shown the query is relevant to the industry and reachable. The resulting list is the raw material that turns into a content calendar by the shortest route.

Which questions does the analysis answer?

• Which topics does the competitor cover that you have never touched?
• Which page type ranks in the industry: guides, categories or comparisons?
• Where is the competitor visible but weak? Old, shallow or intent-mismatched pages leave you an open door.
• On keywords where you both have a page but the competitor is far ahead, where does the difference come from?

Keep these questions at hand throughout. Producing a list is easy; reading the list against these questions is the real work.

Pick the right competitors first

Business competitors and search competitors are often not the same list. For a dental clinic in Denver, the business competitor may be the other clinic down the street; page one for 'dental implant cost' is filled by health portals and clinic chains. The analysis is done with search competitors.

• Search your main keywords and note the domains that repeat on page one.
• If you track rankings, look at the SERP competitors list; the three to five sites that show up most often on your keywords are candidates.
• Pick at least one competitor close to your own size. If you only look at giants, the list fills with unreachable keywords.
• Filter out marketplaces, encyclopedias and news sites; not every keyword they rank for is a gap for you.

Pull the keyword lists and compare

1. Get the keywords each competitor ranks for. A tool like domain overview lists them per domain.
2. Get your own list from the same tool and add the queries from Search Console next to it; that is where you fill in the long-tail queries tools miss.
3. Compare the competitor lists with your own and separate out the keywords you do not have.
4. Put keywords where two or more competitors rank and you never appear into the main list. Keywords where a single competitor happens to rank wait in second place.

You can start without a tool. Opening the results pages for twenty or thirty main queries one by one and noting which pages competitors appear with is a sufficient first pass for a small site. Browsing a competitor's blog and category menu also quickly shows topics you do not have.

Keep the output in a simple table: keyword, estimated volume, each competitor's position, your position, intent and a notes column. As the number of competitors grows, this table shows at a glance which keywords are common ground in the industry and which belong to a single competitor. A keyword where all three competitors are on page one and you do not appear at all is the clearest gap on your list.

Clean the list

The raw list is misleading. Do not move on to prioritizing before removing these:

• Queries containing the competitor's brand and product names.
• Keywords for products or services you do not offer. If the furniture store does not sell garden furniture, 'garden swing seat' is not a gap.
• City and region queries where you do not operate.
• Queries whose intent does not match your business; 'how to sew upholstery fabric' brings a furniture retailer no customers.
• One-off news, campaign or event keywords.

After cleaning, the list usually halves. What remains is the real gap, sorted by type in the next step. Instead of deleting the keywords you removed, keep them on a separate sheet; when your product range widens or you open in a new city, that list is a ready starting point.

The three kinds of gap

You have no page at all

This is the classic gap. The competitor has published a guide on 'what to eat after a dental implant' and you do not have a single sentence on the topic. The fix is new content; but before writing, decide which existing page of yours it will link to, or the piece will stand alone.

You have a page but it does not rank

You have a page on the topic and still do not appear in the top hundred. The reason is usually one of three: the content is far shallower than the competitor's, the page type does not match the query's intent, or the page is not indexed or cannot be crawled. Check the technical state first, then open the results page and put the competitor's page and yours side by side.

You have a page, far down

Pages hovering between positions 20 and 50 are the fastest wins. Google has associated the page with the topic; it just is not convinced enough. Adding the missing subheadings, linking to it internally and moving the title closer to the query is usually enough. In weranklab the keyword-by-keyword competitor comparison shows where you and each competitor rank for every query in one table; it is the most practical view for separating these three kinds.

Prioritizing

You cannot work on a hundred-keyword gap list at once. Ask three questions of every keyword or group and score each from 1 to 5:

• Business value: does a visitor from this query turn into a customer, or only read?
• Reachability: do the strength of the page-one sites and the layout of the results page leave you room? If only big brands are there, the score drops.
• Effort: is updating an existing page enough, or does it need a thorough piece from scratch?

Sort by total score; the top is usually existing-page updates and commercial-intent groups. Long informational guides often land in the middle of the list, but do not postpone them entirely; they are the supporting content that carries internal links to the commercial pages.

Do not open a hundred pages for a hundred gap keywords. Group keywords that share an intent; a group is usually the job of one thorough page.

A small example

The Denver dental clinic finds three groups at the end of the analysis. First, 'what to eat after a dental implant' and its nearby questions: business value medium, reachability high (page one is mostly forum and portal posts), effort low (one guide). Second, 'zirconia crown cost': business value high, reachability medium, effort low (adding a pricing section to the existing service page is enough). Third, 'what is orthodontics': business value low, reachability low (large health portals), effort high. The order falls out on its own: update the zirconia page first, then write the diet guide, and put orthodontics on hold.

Common mistakes

• Treating every keyword the competitor ranks for as a target. Half the list is irrelevant to you; do not skip the cleaning step.
• Only looking at the biggest competitor. Giants' keyword lists are full of unreachable targets; a similar-sized competitor shows more realistic gaps.
• Seeing a gap only as 'new content'. Most gaps close by updating an existing page, and that route is much faster.
• Taking tool data as the only source. Tools under-report niche and local queries; always put Search Console and the results page next to them.
• Not tracking the gaps you closed. If you do not measure whether the content you wrote ranks, the next analysis shows the same keywords as 'gaps' again.

Study the competitor's page, do not copy it

For every priority group, open the competitor's ranking page. Which subheadings did they use, which format (list, table, long guide), which questions did they answer? Then look at what is missing: outdated information, parts left empty from a local angle, no price table, no images. Your page should answer the same questions and close at least one of those gaps. Taking the competitor's structure one to one puts you behind them at best.

For title, structure and internal link decisions during writing, see the SEO-friendly blog post guide; the same principles apply to commercial pages in shortened form.

Put the analysis on a schedule

If the gap analysis stays a one-off, the list is stale six months later; competitors produce new content, and new gaps open where you closed old ones. Repeat the same steps quarterly and track the main keyword of every gap you close. That way you see which content actually ranks and whether you passed the competitor; how to set up tracking is in the rank tracking guide. To read competitors' overall size and which of their pages pull traffic, the website traffic guide is useful too.