![]() Make sure also to block RSS using the code listed in the previous step, the code above will not be impacted by those crawlers changing their agents or coming with different agent's names. GET /robots.txt HTTP/1. - Mozilla/5.0 (compatible DotBot/1.2. This code will allow only Google to see the links, it verifies also that the IP address belongs to Google and it is not faked. Blocked IP addresses do not reach Apache during blocking, so they do not. The issue with this method is that it requires your hosting provider to be Apache based, if your host supports htaccess you can use the code below to block most popular link crawlers: The companies that operate those crawlers do not use third party crawling services that come under different user-agents.The crawlers do no keep changing their user-agent's names.You trust those crawler to obey the directions in the robots.txt file.The method above will be very effective assuming: It is different from Dotbot, which is our web crawler that powers our Links index. User-agent: Rogerbot User-agent: Exabot User-agent: MJ12bot User-agent: Dotbot User-agent: Gigabot User-agent: AhrefsBot User-agent: SemrushBot User-agent: SemrushBot-SA Disallow: / Rogerbot is the Moz crawler for Moz Pro Campaign site audits. ![]() You add few lines to your robots.txt file that can disallow most popular link crawlers: I will list below different ways to block them: Robots.txt: The most popular link crawlers are Majestic, Ahrefs, Moz and SEMRush, please note that their crawlers user-agents will not match their brand name and can change in the future, so it is very important to keep an up-to-date list with the user-agents used by those crawlers. ![]() They are not useful for your website, and they are not harmful in way they try to scrape content or anything like that, but they could be consuming your server resources with no benefit.įor SEOs that adopt black hat tactics like PBN (private blog network) those crawlers are a nightmare and can expose the network to competitors if left open, which in most cases will lead to a spam report causing the whole network to be de-indexed + a manual action applied to the money site if not a total deindexation. Link crawlers come short of harmful but far from useful. The web has a lot of web crawlers, some of them are good and vital for your website such as Google bot, others can be harmful like email harvesting crawlers and content scrapers. ![]()
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