Google's John Mueller repeated advice from a while ago that you should not switch your m-dot URLs to be the canonical URL, even though Google is fully switched over to mobile-first indexing. He said ...

Google has updated its URL structure best practices SEO documentation to add new examples, while also making significant changes to the document’s structure. Google made it clear that no changes were ...

Google explains how generic login pages trigger duplicate indexing. Learn fixes using noindex, redirects, and paywall markup.