When you notice that the Ahrefs bot is crawling your site like it never has before, you might wonder why this is happening. A natural assumption is that a competitor is checking your site. While this might be one explanation, it is not the only reason why you may find this crawler checking your site. The crawler periodically checks all accessible sites on the internet. This is also true for Google, Bing and other search engines. If you do not want Ahrefs bot to crawl your site, you have a few options available for your consideration. One option is to block it form robots.txt. It is important to know that it can take a few days for your request to be honored. You should also know that the Ahrefs bot cannot crawl a site on demand. This means that the owners of competing sites are unlikely to be the force behind the bot's activity on your site. If you want the bot to crawl a site, you must prove site ownership or domain ownership. There are a few additional codes that you can use in order to make the bots stop crawling your site. Some options available to you include Rogerbot, Exabot, MJ12bot, Dotbot, Gigabot, Baiduspider, Ezooms, Nutch, archive.org_bot, MJ12bot, YandexBot, AhrefsBot, HTTrack, Wget and Zeus with the disallow: / attribute attached. It is also a good idea to block other SEO trolling bots, such as block Moz, Majestic and SEMRush. You can also block at the Apache level by using the code Apache .htaccess. You may also use nginx with the appropriate user-agents to nginx.conf in the server block. Remember that if you block the DotBot, you will be unable to request your spam score from Mozilla. Whether or not any bots crawl your website, you should always take care to monitor your site's performance in terms of the server's bandwidth. If the bots are causing your site to take up more band width, you may need to add blockers to keep the bots away. Also remember that if you block Ahrefs, you cannot use it to analyze your site. For more information click here https://www.reddit.com/r/SEO/comments/a0i5mf/ahrefsbotiscrawlingmywebsitelikecrazy/.