Hi, Anyone who knows why I get this Alert from Google and if it harm's our ranking? I hope it hurts this website to be posted here since it's not the way to compete. A significant portion of referral traffic to property http://XXXXXX.com is from the following hostnames, which may be self-referrals: http://www.4webmasters.org Self-referrals are referrals from pages within your own domains. Self-referrals can obscure the actual sources of traffic to which conversions and other engagement on your site should be attributed. As a result, your referral metrics could be inaccurate. Further, self-referrals could be indicative of improperly-configured cross-domain tagging. Your users could be generating a session per domain, which would artificially inflate session counts. Any input is much appreciated.