Directory links, from local SEO perspective, is an aggregated list of local companies, like a digital form of the Yellow Pages, and is made up of the business’s name, address, phone number (NAP) and other relevant information. In some instances, Directory Links are penalised by search engines if they’re seen as a spammy way of generating backlinks for other websites. In the past directories used to charge domains to be featured, generating backlinks for a site.