Content Gap Analysis: How to Find the Missing Content Your Competitors Rank For

Content gap analysis is the process of identifying keywords and topics that your competitors rank for in search results but your website does not yet target. These gaps represent missed traffic opportunities — searches being made by your potential customers where a competitor is capturing their attention because they have relevant content and you don’t. Systematically identifying and closing these gaps is one of the most effective ways to grow your site’s organic visibility because it focuses your content creation effort on areas with proven demand.

At Xpose, content gap analysis is a core component of the SEO strategies we develop for clients in Norwich and across the UK. It’s a process that combines competitor analysis with your own site’s performance data to produce a prioritised list of content opportunities — essentially, a clear answer to the question "what should we write next?" This guide explains how to conduct a content gap analysis, which tools to use, and how to turn your findings into an actionable content plan.

How Content Gap Analysis Works

A content gap analysis compares the keyword rankings of two or more competitor sites against your own and identifies queries where competitors appear in search results but your site does not. The underlying logic is that if multiple competitors rank for a specific keyword, there is clearly both demand for the topic and an opportunity to compete — you’re just not currently in the race. These gaps may be because you’ve never created content on the topic, because your existing content is too thin to rank, or because you’ve covered the topic but without enough depth or the right structure to compete.

The analysis has two components. The first is finding gaps at the keyword level — specific search phrases where you have no ranking page. The second is finding gaps at the topic level — broad subject areas that your competitors have built extensive content around that you’ve neglected. Both are important: keyword-level gaps produce focused content briefs for individual pages, while topic-level gaps suggest larger strategic investments in building a content cluster around an underserved subject area.

Tools for Conducting a Content Gap Analysis

The most efficient way to conduct a content gap analysis is with a dedicated SEO tool. Ahrefs has a built-in "Content Gap" feature that takes a list of competitor URLs and your own URL and returns a filtered list of keywords the competitors rank for that you don’t. Semrush offers an equivalent "Keyword Gap" tool. Both tools allow you to filter by keyword volume, difficulty, and the number of competitors ranking, helping you focus on gaps with the most practical value. A keyword that four of your competitors rank for but you don’t is a more compelling gap than one where only one competitor appears.

If you don’t have access to paid SEO tools, Google Search Console provides a lower-resolution version of the same insight through its Performance report. Filter by impressions and sort by position — keywords where you appear on pages 2–5 (positions 11–50) represent content that exists but isn’t competitive enough, rather than true gaps. To identify complete gaps, you’ll need to search manually for your target keywords and check whether any of your pages appear. This is time-consuming for large keyword lists but workable for focused research into specific topic areas.

Turning Gap Analysis Into a Content Plan

Once you have your gap list, prioritise it using two criteria: search volume (higher volume gaps deliver more traffic when closed) and commercial relevance (gaps closer to your core services deliver more qualified traffic). A keyword like "web design prices UK" is both commercially relevant and high-intent for a web design agency — a strong priority. A keyword like "history of web design" might have decent volume but deliver curiosity traffic rather than prospects — a low priority despite its volume.

Group related gaps into content clusters — groups of keywords that share a common topic and can be addressed through a hub page and a series of supporting articles. This cluster approach is more efficient than producing individual isolated pages and builds topical authority faster. At Xpose, we typically identify 3–5 priority gap clusters from each analysis and build a quarterly content plan around them, with each cluster contributing several new or significantly expanded pages. Track the results in Google Search Console — new rankings for gap keywords typically appear within 4–12 weeks of publishing well-optimised content, providing clear evidence of the strategy working.