What is the use of DNS encryption?

DNS encryption is mainly used to protect the data privacy and security of users when performing domain name resolution. Traditional DNS requests and responses are transmitted in plain text, which means that any third party that can monitor network traffic (such as ISPs or hackers) can see the content of DNS requests for each website you visit. These requests will expose the names of the websites you visit, which may expose your online habits, interests, or sensitive activities.

1. What are the common DNS encryptions?

DNS encryption prevents this information from being snooped or tampered with by third parties by encrypting DNS requests and responses. Common DNS encryption protocols include:

1. DNS over HTTPS (DoH): Encrypt DNS requests and responses through the HTTPS protocol, making them unable to be easily eavesdropped or tampered with.

2. DNS over TLS (DoT): Encrypt DNS traffic through the TLS protocol, which is also designed to prevent traffic from being monitored or tampered with.

2. What are the main functions of DNS encryption?

1. Protect privacy: prevent ISPs or hackers from monitoring the specific websites you visit.

Prevent DNS hijacking: ensure that DNS requests have not been tampered with or redirected to malicious websites.

2. Enhanced security: prevent man-in-the-middle attacks and DNS spoofing.

In general, DNS encryption is not only to protect the privacy of users, it can also enhance the overall security of the network. In today's era of frequent information leaks and network attacks, DNS encryption provides an effective means to prevent sensitive data from being accidentally exposed to malicious third parties. With the advancement of technology, more and more services and network providers are beginning to support DNS encryption, allowing every user to browse the Internet more safely.