IndieCanonical asks where a page says home is

Field notes

The tool accepts one public URL and examines both the fetched response and server-delivered HTML, rather than relying on rendered JavaScript. Its stated scope covers up to 12 alternate targets and reports canonical declarations, conflicts, chains, and hreflang return checks. The page explicitly excludes sitemap inspection, page-content comparison, and inference about a search engine’s chosen canonical, keeping the result tied to observable source material.