Today I added this to my .htaccess file.
I am sick of the spam hits from these ubiquityservers.com subnets.
order allow,deny
deny from 173.234
deny from 173.208
deny from 173.212
deny from 173.34
deny from 69.147
allow from all
I may be denying some good servers, but on these subnets they would still be servers and not users. I only want humans on this site. I will keep adding to this list.