I have 3 domain name, which have same content on the site, but they all are pointed to the same IP address. Is it affect on the SEO work? Will google take it as duplicate content Please suggest....
Even if they have different IP addresses it will be counted as duplicate content, because you've duplicated your content. Regarding IP address many webmasters use multiple IPs for SEO purposes, for example somebody might have a network of 50 sites and might have 50 different IP addresses so that he can sell a link to one site from his 50 sites and so that it is counted as 50 links from 50 different IP addresses rather than 50 different links from 1 IP address which looks more authentic.