-# official debian repository:
- deb http://http.debian.net/debian/ sid main contrib non-free
- deb-src http://http.debian.net/debian/ sid main contrib non-free
+# official debian repository (mirror selected via geo-ip):
+ deb http://cdn.debian.net/debian/ sid main contrib non-free
+ deb-src http://cdn.debian.net/debian/ sid main contrib non-free