Are TIC(X) and PR normal for my site, to which links are purchased?

Question

Search Engine Optimization

I have two sites.
The website is promoted by a programmer. Now requires payment. How can I check if he really buys links and somehow promotes the site? And how to evaluate the quality of his work?

Answer 1

Before it's too late, formulate the result you expect. What he buys there or not, you absolutely should not be interested. Only the result.

Answer 2

Ask to place all links and check