Block semalt.com and associated sites Bad Bots
Semalt.com is causing problems for many sites across the web and is messing up Google Analytics results and reports. I've also read that they do not adhere to robot.txt protocol.
I've added some rules to my htaccess. as they keep creating different domains that they send bots from. I tried to deny their IP in htaccess but this caused a 500 server error for me.
I was wondering if you'd ever consider blocking these sites server side for all your customers.