See what search engines think your website is about. Get a topical authority score, visual cluster map, content gap analysis, and sub-topic breakdown. Just paste your domain.
This tool fetches your XML sitemap, reads every page title, and uses AI to group them into semantic topic clusters based on what each page is actually about, not how your URLs are structured.
Topical authority is how deeply and comprehensively your website covers a subject area. Search engines reward sites that demonstrate expertise across a topic, not just on isolated pages. A site with 50 well-linked articles about email marketing will typically outrank a site with one article on the same subject, even if that single article is excellent. Building topical authority means creating content clusters that cover related subtopics thoroughly.
This tool fetches your XML sitemap, extracts all page URLs (up to 1,000), and fetches page titles in parallel. It then uses AI to read every title and URL, grouping pages into semantic topic clusters based on what each page is actually about. For example, a blog post about keyword research goes into a 'Keyword Research' cluster, not a generic 'Blog' cluster. The AI also identifies sub-topics within each cluster so you can see the depth of your coverage.
A topic cluster is a group of related pages on your website that cover a single broad topic from multiple angles. A typical cluster has one pillar page (a comprehensive overview) and several cluster pages (detailed articles on subtopics) that link back to the pillar. Search engines use these internal linking patterns to understand your expertise on a subject. This tool identifies your existing clusters based on how your URLs are organized.
Most sites place their sitemap at yoursite.com/sitemap.xml or yoursite.com/sitemap_index.xml. You can also check your robots.txt file at yoursite.com/robots.txt for a Sitemap: directive. WordPress sites with Yoast SEO or RankMath auto-generate a sitemap index. If you enter just your domain, this tool will automatically look for /sitemap.xml.
If your content does not group into clear clusters, it means your URL structure is flat or your content lacks topical focus. Start by identifying 3 to 5 core topics your business should own. Create a pillar page for each topic, then plan 5 to 10 supporting articles per pillar. Use a consistent URL structure (like /blog/topic/subtopic/) so search engines can map your expertise. Re-run this tool after restructuring to confirm the clusters appear.
This tool processes up to 1,000 URLs from your sitemap. For sitemap index files (which point to multiple child sitemaps), the tool fetches up to 5 child sitemaps and extracts their URLs. If your site has more than 1,000 pages, the tool analyzes the first 1,000 and notes the total. The clustering patterns from 1,000 pages are typically representative of your full site structure.
Analysis results are temporarily stored during processing (typically under a minute) and automatically deleted within 10 minutes. No long-term storage. The final results exist only in your browser session.
A manual content audit involves reviewing every page individually, which can take hours for large sites. This tool gives you the structural overview in seconds: which topics you cover, how your content is distributed, and where the obvious gaps are. It complements a manual audit by giving you the bird's eye view first, so you know where to focus the detailed review.
Topical authority is how comprehensively your site covers a subject. Google does not rank individual pages in isolation. It evaluates how much expertise your entire domain demonstrates on a topic. A site with 30 well-structured articles about email marketing, covering strategy, deliverability, subject lines, list building, A/B testing, and automation, will consistently outrank a site with one excellent guide on the same subject.
This matters because Google's algorithms, especially after the Helpful Content updates, actively suppress "thin" sites that cover topics superficially. A single article on a topic signals shallow coverage. A comprehensive cluster signals depth, experience, and authority.
HubSpot found that 76% of their blog traffic came from posts older than 6 months, and those posts compound in value as Google recognizes the surrounding cluster. Building topical authority is not fast, but it is the most durable ranking strategy.
The analyzer works in four steps:
The clustering is semantic, not structural. A blog post at /blog/email-deliverability-tips and a knowledge base article at /help/why-emails-bounce both go into an "Email Deliverability" cluster because they cover the same topic. URL structure is a hint, but the AI reads the actual title to determine the topic.
The treemap visualization shows cluster size proportionally. The table view shows every page with its assigned cluster and sub-topic. Use both views together.
If your analysis shows weak or missing clusters, follow this process: