301ed an old domain - got big rankings boost

that was last year... and now domain is about to expire

[nippi]

Do I need to renew the domain?

[DrDoc]

Can you directly attribute the ranking boost to this domain? Does it draw a lot of traffic, or is it just a dud?

[g1smd]

If you still have inbound links to that other domain, then renew the domain name for a couple of years.

It will still provide some traffic.

I assume that you are NOT paying for separate hosting for the domain just to provide a redirect?

[nippi]

was a client's domain, they went bust, i had a hobby site on same topic, after 301 my site went from 28 to 1.