Today I added code to my .htaccess file to block some well-known spammy referal services that keep showing up in my Google analytics. SEMALT is the main company, but now they are spinning off into other main websites. I am documenting this today as part of my diary, to be able to benchmark statistics and look back over time to see how actions I took affects analytics in the future.
I think this one looks like the best advice… go right to the .htaccess file.
https://wordpress.org/support/topic/how-to-block-semaltcom-from-visiting-your-wordpress-website
Get Out of Here, SEMALT
You Suck. You are filtrating my analytics data with false data.
