I'm trying to buy an expired domain and use it for 301 redirect. I'll make sure to have a clean profile backlinks. But is it a MUST to have in the same niche. Completely the same. I run a blog about SEO, can I buy an expired domains that talks about tech in general. And is it a big problem not having the domain indexed in google? This is the first domain that I'm going to buy. What tips can you give me?