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

Navigating the “Alternate page with proper canonical tag” error in Google Search Console often feels like a game of high-stakes covert ops for SEO professionals ...