This blocks semalt.com, buttons-for-website.com and others with a 403 Forbidden message so that they no longer show up in your Google Analytics stats.
Simply uses the HTTP_REFERER to determine if it's from 'Semalt', and blocks it with a nice 403 "Unauthorized" response.
The easiest way to manage meta robots tag.
Customize your site's robots.txt and include remote content to it
Exports all entries of Seo Crawlytics and gives you the option to delete the entries that are older than 1 month.
Block Semalt from crawling your website.
Add some directives to your robots.txt file to keep your site safer
SEO Crawlytics helps you gain a better understanding of the behaviour of robots.
Protects e-mail addresses from being found by spam spiders (or any other web crawler).
SpiderSquash analyzes client behavior and determines whether or not a client is a legitimate user or a malicious bot.