You are right about the outgoing links on your site to avoid leakage (this is what well implemented search engines like DuckDuckGo does as well), but I think GP

You are right about the outgoing links on your site to avoid leakage (this is what well implemented search engines like DuckDuckGo does as well), but I think GP talked about the incoming links of your site. Your pages will appear as exit pages in Google Analytics which you cannot do a thing about.