Domain Name System blocklist
= Domain Name System blocklist
{wiki=Domain_Name_System_blocklist}
A Domain Name System (DNS) blocklist is a list of domains or IP addresses that are designated as harmful or undesirable for various reasons, such as hosting malware, phishing sites, or other malicious content. Organizations or individuals use DNS blocklists to improve security, protect users, and reduce the likelihood of connecting to sites that could compromise systems or data.