I do not know how to builded.You can rank easily if the keyword has super low competition, that site on your picture has great domain authority (old domain) as we can see so many backlinks coming to the site, hence he can acquire organic traffic easily on Google SERP
This is a brand new domain name. I'm checking it, and its registration time is in April.If you mean a brand new domain unless someone does the whole pump and burn ways then probably can happen sometimes if the person is intelligent or gets lucky.
IF you have say auction domain or a website already with good authority behind it then yes month could allow you to rocket it's traffic up in some cases.
Its niche is replica items. This is a popular niche.Absolutely, it depends on the niche, if it's something that was trending, yeah...
For example in my country reality programs are booming, if you start it and do something about it, traffic is guruanteed in the first 24 hours.