Redirect from old domain to new one (SEO friendly)

Question

I changed the custom domain on my Heroku app to a new one. Now I will create a new Heroku app which only purpose will be to redirect to the first app.

I read in Google

Answer 1

You can do this in the routes.rb file rather than a controller:

Rails.application.routes.draw do
  constraints(host: 'old.com') do
    get '(*)', to: redirect(host: 'new.com')
  end

  # your existing routes here
end

This will do a 301 redirect, which is the default for the redirect route helper