How to choose the right domain with age to buy?

Question

Search Engine Optimization

For better promotion, I want to purchase a domain with age. A lot of questions, please answer point by point:
Is the theme of the last site on the purchased domain important?

1. Is it true that if the result of domain verification through the web.archive.org service contains a time period in which there is a stub with information about the sale of the domain, such a domain should not be purchased. Since the purchased domain must contain a functioning site with the topics we need or be completely without content.
   
2. It is true that if through the web.archive.org service it turns out that the domain was owned for N periods in which there is a period when it was not renewed (i.e. the domain is in the archive, then its history is cut off due to its non-renewal , then reappears as it was bought again) - then such a domain should not be bought?
   
3. Is the past theme of the domain important?
   
4. Where is the best place to look for domains to buy?
   
5. What should you pay attention to when buying a domain?
   
6. If a domain is bought for a site with the sale of software for working with social networks. networks. Would the "firewall" domain theme fit? Indeed, on the one hand, this is software, but on the other hand, the categories are different. In one case, social networks, and in the other, security and protection. Or will the category be a factor for choosing a domain?
   
7. What is the best age to buy a domain?
   
8. With how many referring sites to buy a domain?
   
9. Is it worth buying an older domain? Or is it better to buy a new domain and definitely not " shitty "?
   

Answer 1

If you ask such questions, then it’s not worth it, most likely you will simply worsen the SEO.
If the site is normal, then the search engines will give it a boost on the new domain at the beginning, and due to it, you can relatively easily reach the top 10