Compute the expected URL for every request and redirect variants to it

Google treats URLs that differ as different URLs and crawls them all, even when they show the same content. A community speaker showed five kinds of similar URLs on well-known brand sites: another protocol or host, other capitalisation, extra slashes, a space encoded as %20 in one URL and + in another, and parameters in another order. Such URLs signal duplicate content, broken links and unnecessary redirects, and anyone can link to them from other sites, so the application should be hardened against them.

In the application, build the expected URL for each request from the route, the page type and ID (reverse routing) and the parameters the page actually uses, in a fixed order. When the requested URL differs, answer one 301 to the expected URL, or an error page when it maps to nothing. Generate internal links with the same function so they are never variants.

Entschieden aus einer URL.

Ein Audit liest die Antwort, die Header, das HTML, robots.txt, die Sitemaps und die Structured Data, und der Befund zeigt, was es gesehen hat.

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