Is this helpful to use repetitive sites for creating backlinks?

Links are treated as a vote for a site, repeating them over and over will have no effect but could be treated as spam so could have a negative effect on your site. 

Attempting to drop a link here is also not a good idea. I have removed it. 

You need to use keywords to get backlinks so that you can rank well in that keyword

I think it's not useful to get backlinks from repetitive websites. To increase the website ranking get Backlinks from different websites with high PA, DA.

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