Forum Moderators: Robert Charlton & goodroi
Should I upload nesecerry files like: robots.txt, sitemap.xml ?
Kindly suggest
In the past you may have been lucky, but Google cannot know that a domain now has its first content unless that knowledge gets communicated somehow. You probably were not aware of how that happened for your past websites. Even uploading a sitemap.xml wouldn't do it unless you also submit that sitemap to Google.
I've had Googlebot visit a site without incoming links or submissions, from what I assumed was the discovery of the domain name registration a couple months later.
More likely, it's from a publicly available stats page or server log. Not likely to give you a big boost in rankings, but often enough to get a page discovered (including pages your don't want discovered). See this thread about 'why is Google crawling my website?'...
Why is Google indexing my entire web server?
[webmasterworld.com...]
Good inbound links are the best way to go if you want your site both to be indexed and to rank.