Please apologize me for being late. I just went outside.
Actually I am new in the world of SEO. The more I learn, the more I feel interest.
However, I got the term "custom foot print" when I was searching for relevant site in Google. I wanted to mean custom footprint as query word in search engine and by adding my keywords with appropriate query words, relevant sites are obtained. If I can have backlinks from my niche related forums, I can expect to get targeted traffic as well.
As I prefer permanent quality backlinks, I always appreciate white hat techniques.
Please feel free if there is any further query.