Google has introduced a method to ease the process of defining canonical URLs for large sites. This method involves supplying the preferred canonical URLs in the sitemaps, which is a simple way to get rid of existing duplicate pages. It's important to note that all redirection methods, including 301 and 302 redirects, have the same effect on Google Search. However, the time it takes for search engines to notice the different redirect methods may differ. **Redirects are a strong signal that the target of the redirect should become canonical**.
Furthermore, Google recommends using 3xx redirects, such as the 301 redirect, for the quickest results. It's crucial to avoid common canonical tag errors, such as specifying a canonical URL that redirects, as it can cause keyword cannibalization. URL redirects send Google and users from one page to another, so it's essential to handle them carefully.
When moving pages, it's important to add redirects from the HTTP page to the HTTPS page. This is a crucial step to ensure a seamless transition for users and search engines. Additionally, it's recommended to use canonical tags to keep the website optimized for Google's crawlers. Following best practices and auditing the website with appropriate tools can help ensure that canonical tags are implemented properly.