Google Analytics Proxy

ga_proxy.conf

server {
	listen 443 http2 ssl;
	server_name analytics.example.com;
	location /ga_proxy {
		proxy_set_header            X-real-ip $remote_addr;
		rewrite ^/ga_proxy/(.*)$ /$1?$args&uip=$remote_addr;
		proxy_pass http://www.google-analytics.com;
 		break;
	}
	location /analytics.js {
		proxy_set_header            X-real-ip $remote_addr; 
		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    	proxy_set_header Referer https://www.google-analytics.com;
   		proxy_set_header Host www.google-analytics.com;
		proxy_pass https://www.google-analytics.com;
  		proxy_set_header Accept-Encoding "";    subs_filter_types text/css text/xml text/javascript;
 		subs_filter www.google-analytics.com analytics.example.com/ga_proxy;
}
}

  (function (i, s, o, g, r, a, m) {
    i['GoogleAnalyticsObject'] = r;
    i[r] = i[r] || function () {
          (i[r].q = i[r].q || []).push(arguments)
        }, i[r].l = 1 * new Date();
    a = s.createElement(o),
        m = s.getElementsByTagName(o)[0];
    a.async = 1;
    a.src = g;
    m.parentNode.insertBefore(a, m)
  })(window, document, 'script', '//analytics.example.com/analytics.js', 'ga');
  ga('create', 'UA-XXXX-X', 'auto');