SDNS Recursive Cloud Resolution

Product Introduction

The free public recursive cloud service launched by CNNIC is designed to provide domestic users with a secure, intelligent, and high-speed DNS resolution service for internet access. The addresses of the SDNS recursive cloud service are 1.2.4.8 and 210.2.4.8.

Leading Advantages

l Security and Efficiency: Utilizing CNNIC’s self-developed security resolution products, effectively preventing DNS-based attacks. The service offers high performance, high availability, and supports large-scale record handling, while being compatible with DNSSEC deployment, providing secure, stable, and fast recursive resolution services.

High Availability: The service adopts a distributed architecture with nodes deployed across major telecom operators, significantly enhancing the overall platform's availability.

Service Modes

Standard Service: Provides standard DNS recursive services that are fast, secure, stable, convenient, and completely free of charge!

Emergency Service: If the user's own domain becomes inaccessible, emergency services can be applied to temporarily configure the SDNS public platform, ensuring uninterrupted service.

Backup Service: In the event of a failure in the user’s local DNS network, DNS requests can be redirected to the SDNS recursive cloud platform for continued service.