Referral Spam includes fake referring domains, keywords and events that pollute site analytics with erroneous data to bring attention to their site. Referral spam is designed to look like legitimate traffic to your site.

Spam email is unsolicited and unwanted junk email sent out in bulk to an indiscriminate recipient list. Typically, spam is sent for commercial purposes. It can be sent in massive volume by botnets, networks of infected computers.

Computing slang. [Compare Spam n.] To flood (a network, esp. the internet, a newsgroup, or individuals) with a large number of unsolicited postings, or multiple copies of the same posting. Also intransitive: to send large numbers of unsolicited messages or advertisements.

The most effective way to block your spam referral traffic is through a . htaccess (hypertext access) file. This configuration file is used to control your server. It can be instructed to block spammy visits by domain or IP address.