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Hey there, The same-language relevant-content backlinks are by far more valuable. You can grab a couple high DA links with less relevancy, even diff languages, as long as it's not in an extremely spammy way or overdone. Ex - the article is about mountain passes in Russian and suddenly you link to your site saying "Buy cheap laptops". Usually try to only link to your domain with no specific anchor text other than the domain name ex: MOZ.com .This way it can provide some value, but not look spammy. The key is not to do stuff that Google can track as a spam pattern and penalise you. Everything else can be helfpul.  Have a look at this rather older but still very much true / valid Whiteboard Friday vid: https://moz.com/blog/high-value-tactics-futureproof-link-building-whiteboard-friday Hope this helps

Hey Frank, In this case it's a no-brainer. If things are just duplicate and then rotated around, it's clear that content can't be THAT qualitative. In this case I certainly think that going for it, and creating the kind of content that's absolutely the best. This way, you'll get a much more natural growth, Google will pick up on it and even if your domain is lower DA, you can rank better than him for certaim keywords for which you write really good content.