How to remove an old domain from the index, loss of positions?

Question

Google

Guys, this is a dilemma.
There was an information site on the hotshowlife.com domain
2 years ago, we redid the design and moved it to a new domain with a certificate https://hsl.guru
But then all the positions and traffic disappeared and never returned, we thought it was the filter fred
When the site stuck together, we abandoned the old domain
And now I entered into google site:hotshowlife.com and it showed me that there are 900 pages in the index for this domain, and these are duplicates, and moreover, the links no longer lead to our site, but to 404 because the domain thrown, can the filter be imposed precisely for this? and how to deal with it?

Answer 1

Maybe raise the domain and make 301 redirects from it to new addresses?

Answer 2

Hardly a filter because of this.
Just do a 301 redirect from the old domain to the new one. If it is possible to make page-by-page redirects from old pages to exactly the same or very similar pages of the new site.
I doubt there is a filter at all. See the google search console section for "manual action".

Answer 3

Well, it's stupid to refuse a domain if you had links to it from other sites, a domain that costs eight bucks will not particularly impoverish you.