QNAME minimization

A privacy technique in which a resolver (glossary)resolver The DNS server that looks up domain names on behalf of users. Full definition of resolver tells each name server (glossary)name server A server that holds a domain's DNS records and answers lookups. Full definition of name server only the part of the name it needs to know. The root servers (glossary)root server A server that answers for the DNS root zone and points to TLD servers. Full definition of root server, for example, learn just the top-level domain being asked about, not the full name. It reduces how much operators higher in the DNS (glossary)DNS Domain Name System The internet's directory that links domain names to computer addresses. Full definition of DNS can see.