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See your site the way search engines do
List the subtopics a thorough article on your topic should cover, paste your draft, and see what percentage you've actually covered — plus exactly what's missing.
Topical coverage describes how completely a piece of content covers the subtopics that people expect for a subject. An article about starting a vegetable garden that skips soil, watering and sunlight leaves readers searching elsewhere; one that covers them answers the whole question.
Search engines increasingly reward pages that satisfy the full need behind a search. Comparing your draft against a list of expected subtopics — gathered from the top results, People also ask questions and customer queries — shows exactly what is missing before you publish.
Coverage is not about length. A focused page that covers every essential subtopic clearly beats a longer one that wanders. The goal is completeness for the reader's question.
Search engines reward sites that cover a subject thoroughly, not just one keyword at a time. Measuring which subtopics a piece of content covers — and which it misses — shows how to make it the most complete answer.
The percentage shows how many listed subtopics appear in your text. Missing items are the sections or paragraphs to add next.
The result is only as good as the list. Build it from what top-ranking pages and real readers ask, and remove subtopics that do not fit your audience.
A home-improvement writer in Ohio drafted a guide on painting kitchen cabinets.
From the top results and People also ask, she listed ten subtopics: removing doors, cleaning and degreasing, sanding, primer, paint type, brushes versus sprayers, drying time, reassembly, cost and common mistakes. The Topical Coverage Calculator showed 70% coverage — the draft never mentioned degreasing, drying times or cost. She added short sections on all three, and the finished guide answered every question readers had in one place.
From the headings of top-ranking pages, People also ask questions, customer questions and your own expertise.
No. Completeness matters more than length — cover the essential subtopics clearly and stop.
It looks for your subtopic terms in the text, so include the wording readers use and review the results yourself.
AI Crawler CheckerCheck whether AI crawlers can access and understand your website.
AI Overview OptimizerOptimize content for visibility in AI-powered search results.
GEO CheckerAnalyze geographic and location-related SEO signals.
Featured Snippet OptimizerStructure your content for better featured snippet opportunities.The Topical Coverage Calculator is a powerful, browser-based utility designed to streamline your SEO workflow. It processes your inputs entirely in your browser, delivering instant, accurate results without storing your data.
Simply enter your URL or required data into the input field above and click the action button. The Topical Coverage Calculator will automatically analyze your input and generate a comprehensive, exportable report or code snippet in seconds.
Yes! Like all tools on SeoSpidie, the Topical Coverage Calculator is 100% free to use. There are no paywalls, no login requirements, and absolutely no strict usage limits. You can run as many scans and generate as many reports as you need.
Absolutely. The Topical Coverage Calculator runs its core logic locally in your browser. We do not store your website data, track your internal links, or keep a database of your reports.
