There are essentially four ways in which Googlebot finds your new site.
The first and most obvious way is for you to submit your URL to Google
for crawling, via the “Add URL” form at www.google.com/addurl.html.
The second way is when Google finds a link to your site from another
site that it has already indexed and subsequently sends its spider to follow
the link. The third way is when you sign up for Google Webmaster
Tools, verify your site, and submit a sitemap.
The fourth way is when you redirect an already indexed webpage
to the new page
In the past you could use search engine submission software, but
Google now prevents this – and prevents spammers bombarding it with
new sites – by using a CAPTCHA, a challenge-response test to determine
whether the user is human, on its Add URL page. CAPTCHA
stands for Completely Automated Public Turing test to tell Computers
and Humans Apart, and typically takes the form of a distorted image of
letters and/or numbers that you have to type in as part of the