Yandex.Browser uses the DNSCrypt technology, which protects users from DNS hijacking and spoofing.
Connecting to an internet host requires information about its IP address, and it is easier for users to remember letter-based addresses than the sequence of numbers in an IP address. DNS is a distributed system that takes a request containing a domain name and gets its IP address.
When a user enters a website address, this is what happens:
The lack of encryption means that:
DNS on Wikipedia
The DNSCrypt technology encrypts DNS requests and protects them from interception. All encrypted requests are sent to the Yandex DNS server, which also supports the DNSCrypt protocol.
To enable encryption of DNS requests:
In the lower part of the Settings page, click the Show advanced settings button.