What faster proxy_pass or redirect to resource

Question

I transfer my website to new webserver, without assets. I have flolowing links: site.com/img/image.png on new website but now, it's got 404 error also I have old server with images on the same paths, it's look like old.site.com/img/image.png

I have two options:

1. use proxy_pass to get images by old paths from old.site.com
2. use redirect to redirect queries for images to old.site.com

what way is more correct and faster?

Answer 1

proxy_pass is probably the better way to do this as you are presumably updating links and moving images to the new server. A redirect should also return a status response of some kind which could cause problems for search.