Once in a while you may need to block particular third parties from accessing your sites. There are a lot of automatic bots which crawl the Internet, for example, and produce fake visits and online traffic. Additionally, there are spammers that leave links to shady Internet sites as comments to blog articles. This kind of things could drastically undermine your projects, simply because nobody likes to visit a site with countless fake comments, also the increased traffic from both spammers and bots may create high load on the server where your site is hosted, which could result in the site not functioning properly. Among the most effective solutions in such a case is to block the IP addresses that produce the fake traffic, in order to make sure that the visits to your website are real.
