Search Console has found over 18k 404 errors in my site, should I redirect?

[pablo_carrara]

most of them where old URLs pointed from a really old domain, that we have just shutten down. If the pages didn't receive any traffic, should we redirect? If I follow this https://moz.com/learn/seo/http-status-codes we shouldn't

[OlegKorneitchouk]

I would redirect any pages that have external authority (links from an external site) and leave the rest as 404.

[pablo_carrara]

How can I find that out?

[ThomasHarvey]

Could try using: https://moz.com/researchtools/ose/

[pablo_carrara]

Tnks a lot!!