New website. What to do for old links redirect or canonical?

Question

Search Engine Optimization

We are developing a new website from scratch. Routing changes a lot. The question arose of what to do with old links when they are opened on a new engine. Making them work is not a problem, but what is the best way to make the behavior? 301 redirect to new url or just point canonical to it?

Answer 1

Google in the user manual teaches you how to use redirects correctly. In short, each of us tells Google and other search engines the following:
301: Hello, Search Engines! My page no longer exists here, it has moved to a new address. Please index the new page and delete the old one.
Canonical: Hello Searchers! I have multiple versions of the same page. Please only index this version and make it the primary version. The rest of the versions will be visible to readers, but will not be indexed.
That is, the 301 status code of the http protocol has always been considered standard to support a final and permanent redirect from a page. By using this command, you get high link authority for most source pages, as well as high relevance and ranking for the redirected page.
A 301 redirect tells both users and search engines that the original page is no longer available, and that the most relevant, updated information can be found at another link.

Answer 2

301 did all my life