block badbots

I want to block referrals from a website and it's country level domains from visiting my website. - How can I do that from .htaccess? for e.g: I wanna stop example.ru , example.dk, example.bd, example.in, example.nu and all example.** ...... to stop sending referrers to my website.

Hi All, I have seen 2 methods of blocking bots through htaccess floating around and cannot see the operating difference. Can someone please explain the difference? If you know of what is best practice that be great too... Im using wordpress themes if this make any difference. First and...

a small plugin (2.40kb) that writes code to .htaccess to block seo crawlers. user agents that plugin blocks: rogerbot - opensiteexplorer Dotnetdotcom.org - Moz mj12bot - Majestic ahrefsbot - ahrefs exabot gigabot sitebot dot bot virus total...