Content Gap Finder

Step-by-step guide

1. 1
   List your existing content topics
   In the 'Your Content Topics' box, enter one topic per line: these can be blog post titles, page titles, target keywords, or content categories. Be as specific as possible: 'keyword research for e-commerce' is more useful than just 'keyword research', as the matching logic looks for significant words (4+ characters).
2. 2
   Add competitor topics
   Enter the name of each competitor (domain, brand name, or any label you prefer) and paste their content topics below it. You can add up to three competitors. To find competitor topics, browse their blog index, sitemap, or use a tool like Ahrefs, Semrush, or even Google Search to identify their top-ranking pages.
3. 3
   Click Find Content Gaps
   The tool compares each competitor topic against your list using a keyword matching algorithm. A topic is considered 'covered' if any significant word (4+ characters) from the competitor topic appears in any of your topics. Topics with no match are flagged as gaps.
4. 4
   Review per-competitor and combined gaps
   The results show gaps per competitor and a consolidated combined view. Each gap in the combined view is assigned a priority: High (covered by 2 or more competitors: meaning multiple competitors have identified this topic as valuable) or Medium (only one competitor covers it).
5. 5
   Export gaps as CSV
   Download the full gap list as a CSV file with three columns: Gap Topic, Covered By, and Priority. Import directly into Airtable, Notion, Google Sheets, or your content calendar tool to start planning your gap-filling content strategy.

Frequently Asked Questions

What is a content gap in SEO?

A content gap is a topic, keyword, or question that your competitors are ranking for and attracting traffic from, but that you have not yet created content to address. Content gaps represent direct opportunities: if a competitor is getting organic traffic for a topic you don't cover, you are leaving that traffic on the table. Closing content gaps is one of the most targeted ways to grow organic traffic because you are identifying proven demand (competitors are already ranking for it) rather than guessing what your audience might want.

How do I find competitor content topics to compare?

Several approaches work well. First, manually browse your competitor's blog index or resource section and copy their post titles. Second, use Ahrefs Site Explorer or Semrush Domain Overview to export their top organic pages, then use page titles as your topic list. Third, use Google Search: search for your main keyword and look at what subtopics appear in competitor articles, featured snippets, and 'People also ask' boxes. For a quick analysis, even 20–30 topics per competitor will surface meaningful gaps.

How does the matching algorithm work?

The tool extracts all significant words (4+ characters, alphanumeric only) from each competitor topic and checks whether any of those words appear in any of your existing topics. This is intentionally broad: 'content marketing basics' and 'content strategy guide' would both match against 'content marketing guide' because they share 'content'. A competitor topic is flagged as a gap only when none of its significant words appear in any of your existing topics, meaning it covers genuinely new ground. You can tighten or loosen this by editing your topic descriptions.

What does High vs Medium priority mean?

Priority is determined by how many competitors cover the topic. A High priority gap is one that appears in 2 or more of your competitor topic lists: this signals that multiple competitors have independently identified the topic as worth creating content for, which strongly suggests organic demand exists. A Medium priority gap is covered by only one competitor. High priority gaps should typically be addressed first, as they represent the greatest opportunity for traffic recovery against multiple competitors simultaneously.

What should I do with content gaps once I find them?

Treat your gap list as a content roadmap. Start by grouping gaps by theme: if you have five gaps all related to 'technical SEO', that suggests a pillar page or topic cluster is needed. Then prioritise by commercial value: gaps closest to your product or service offering (where you can naturally recommend your solution) should come before purely informational gaps. Create one piece of high-quality content per gap, optimised for the specific topic, and build internal links from related existing pages to the new content. Revisit the gap analysis every quarter to catch new competitor content.