Dealing with loads of 404 Errors

So I'm using an expired domain for my website but it's just come to my attention that there's about 150 404 errors (Links to old pages which don't exist anymore). Is it okay to leave them as 404 errors or should I redirect them to my homepage?

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Bawsaq said:

So I'm using an expired domain for my website but it's just come to my attention that there's about 150 404 errors (Links to old pages which don't exist anymore). Is it okay to leave them as 404 errors or should I redirect them to my homepage?

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404 are pretty common. You shouldn't redirect them to homepage as it can sometimes be harmful. If you don't have relevant content for those pages to redirect on you should leave them and google will deindex all of them usually through period of 6 months. I recommend you to read this article from google and this topic from moz. Hope it will help you.

Just leave them, they will be removed from search engine slowly, or use google webmasters to remove all of them.