Cyberspace

About Cyberspace

CDNS

About CDNS

SDNS

About SDNS

Technological characteristics of SDNS

Internationalized Email Service

An Introduction to Internationalized Emails

The Course of R & D of Internationalized Emails

Innovation Achievements

The World’s First Email with Internationalized Email Address

CNIDP

About CNIDP

Mode of Operation

New gTLD

About New gTLD

About SDNS

Learn about SDNS

SDNS is a free Secure DNS service (hereinafter referred to as SDNS) released by China Internet Network Information Center (CNNIC), aiming at providing users with safer, smarter and faster DNS resolution service. The addresses for free DNS service of SDNS are 1.2.4.8 and 210.2.4.8.

Official Website：www.sdns.cn

 

 

　

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