On this official Google page about canonical links it says: Can rel="canonical" be a redirect? Yes, you can specify a URL that redirects as a canonical URL. Google will then process the ...
We recently re-wrote our site from Umbraco to WordPress. This has been done by third-party developers. I have been the project manager and it is my mistake that I haven't notice the change of URLs ...
Imagine situation where multiple aliases point to the same server, where htacces divides them into their own language folders. Example: mywebsite.fr >> /fr/home mywebsite.de >> ...