Websites may be in what's known as a bad neighborhood. This refers to sites that have been significantly demoted by search engines.
For example, they may have violated search engine guidelines. Such sites appear far below in search results or are absent altogether. Sites containing terms like "gambling," "casino," "pornography," or "Viagra" are classified as bad neighbors. Be careful when linking to or from such sites! They can negatively impact your ranking in search results. When evaluating a site, search engines often consider the status of sites linking to it.