My client used a third-party company that used duplicate link exchanges on their website previously.
When my client gave their website to me to maintain it, I developed a different website that doesn't use link exchanges, and actually doesn't contain any duplicate content.
Although the website has changed, the duplicate content is still indexed by search engines. I checked this with Google using:
and the results were:
www.example.com www.example.com/links_1 www.example.com/links_2 www.example.com/links_3
...until page 5 on Google, and with same meta description and meta title. It's very bad because when I search for example (the name of website, not using a keyword), not one of the results is www.example.com.
I think the source of the problem is that Google still has the duplicate content indexed used by the website previously. Is there any method/way to delete this, or get Google to index the new site?