Sorry i couldn't find my config file since i closed my website more than a year ago
Just use something like this :
Code:
rewrite https://proxy-domain.com/$ https://your-domain.com permanent;
A proxy website need to load data from your server, therefor he ll send requests to your server and that's where nginx comes in
So just think of it as its your domain instead
you can even rewrite all his requests to a popups, make money out of it why not :p
You can even add it to your google webmaster and Request its links to be removed form search engine
