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I would like to block Russian Federation, China and Ukraine spam as well as semalt and buttonsforwebsite. I have come up with the following code, what do you think? For the countries: BLOCK COUNTRY DOMAINS RewriteCond %{HTTP_REFERER} .(ru|cn|ua)(/|$) [NC] 
RewriteRule .* - [F] And for buttons-for-website.com and semalt-semalt.com: BLOCK REFERERS RewriteCond %{HTTP_REFERER} (semalt|buttons) [NC] 
RewriteRule .* - [F] or should it be: BLOCK USER AGENTS RewriteCond %{HTTP_USER_AGENT} (semalt|buttons) [NC] 
RewriteRule .* - [F] Could I add (semalt|buttons|o-o-6-o-o|bestwebsitesawards|humanorightswatch) or is that too many?

My statistics show that a large percentage of hits to my site are from Ukraine, China and the Russian Federation. Now I know for a fact that most of my demographic is from the US with a bit of Western Europe thrown in. So obviously these are spam bots. Also I have many linked pages with the .ru extension that are spammy. Should I block Ukraine, China and the Russian Federation  in my htaccess? I would think bounce rate is very high with spam bots so would that improve my SEO? Then of course there is the extremely annoying buttons-for-website.com and semalt-semalt.com!

Unfortunately my website is not mobile friendly. As it is based on clickable links within an image there is no way to adapt it either. Now, I have heard Google is getting serious about mobile friendly design, how will this impact my ratings? My current analytics show 57% desktop, 24% mobile and 19% tablet. I really like the design of my site with the clickable images and would hate to have to change it because Google says so :-(. My website is http://tamarindobeachinfo.com