Ping a site to get 404´s

How do i ping a site to get all its 404´s i mean the site is aged and had plenty of 404´s previously... right now has nothing, blank wordpress site with redirection plugin.. all i want to do is redirect old 404 pages.

I want the redirectio plugin to show me all 404´s even google search console could give me all 404´s i know someone said once he used to ping old sites to recover all 404 pages lost previously. Please point me on the right direction.. thnkx in advance.

WBR
Kenas

You can't simply ping to get all your 404 pages, because any random characters after your domain will be a 404 error. Your best bet is looking at GSC what error pages the traffic comes in.

Ok and some way to get all links from GSC ? is this still possible ? i mean... i remember once i had some index problems someone did magic and it showed in GSC some kind of 12k 404´s links all together. Is this still possible ?

Maybe some historic data from archive.org... idk !

try Xenu