In SEO, link farming refers to a group of websites created for the sole purpose of linking to each other to manipulate and artificially inflate the search engine rankings of those sites. This is accomplished by increasing the number of inbound links to each site in the network. Essentially, a link farm is a collection of websites that agree to link to every other site within the group without regard to the content’s relevance, value, or quality.
Search engines, like Google, use the quantity and quality of inbound links as a signal to determine the authority and relevance of a website. Historically, having many inbound links would have helped a website rank higher in search engine results. This led to the practice of link farming as a way to exploit this aspect of search engine algorithms.
However, search engines have become much more sophisticated and can detect such manipulative practices. Today, participating in a link farm is highly risky and is considered a violation of most search engines’ Webmaster Guidelines. Sites found to be engaging in link farming can be penalized by search engines, which may involve a significant drop in search rankings or complete removal from the search index.
In summary, link farming is an outdated and black-hat SEO technique aimed at manipulating search engine rankings through a network of interlinked websites. It is generally frowned upon and can lead to significant penalties from search engines, making it a risky and inadvisable strategy for modern SEO.