I checked

77.55.222.85:443         (1%-1%-1%; Poland; http://www.corpopool.com)
95.105.233.208:13654  (0.5%-12%-10%; Slovakia; https://xdagpool.com/)
213.168.251.23:13654  (1%-5%-10%; UK; http://xdag.me/stats.txt)

and they are taking the advertised percentage.